Veuillez patienter...

PARCOURIR LES VENTES À VENIR

11 résultats

Réinitialiser les filtres

Audemars Piguet Movement: No. 16869, with 26’’’ “English” style, three-quarter plate, “Swiss” lever escapement, one-minute tourbillon with three-arm polished steel cage Dial 1: front; white enamel mean time dial, Roman numerals, four subsidiary dials indicating perpetual calendar calibrated for leap cycle, date combined with day of week, register for elapsed 60 minutes and 12 hours, ages and phases of the moon combined with up/down indication, the outer ring calibrated for equation of time Dial 2: back; Sidereal time, the dial silvered and gold over engine-turning, calibrated for 24 hours, in Arabic numerals enclosing an aperture revealing the celestial chart and its progress over London (51.5072° N, 0.1276° W) at any time of the day or night, showing 315 stars and various labeled constellations, all labeled in gold against a blue enamel ground, the chart further labeled on two silvered plaques Western Horizon and Eastern Horizon. Olivette hand setting for each dial Case: the massive 18k yellow gold case, with molded bezels. The case band set with slides for choice of silent/striking and another for quarters/hours. Five-bar hinged case. Thief-proof swivel bow stamped with English hallmarks. The sky chart with the following named constellations: Perseus, Andromeda, Cassiopeia, Cepheus, Cygnus, Pegasus, Draco, Lyra, Serpens, Taurus, Scorpion, Corona Borealis, Hercules, the Great Bear, Virgo, Hydra, Cancer, Gemini, and Orion Signed: dial signed S. Smith & Son, Trafalgar Square, bezel interior stamped FT for Frederick Thoms, and London hallmarks Size: 85 mm Accompanied by a fitted wood box, an album assembled by the former director of the Musée Atelier Audemars Piguet, Martin Werhli, who co-authored the 1993 monograph on the watches of Audemars Piguet. The album contains photocopies of the workbook records, including a copy of the Audemars Piguet Registre d’Établissage (Establishment Register) listing the movement number, components, and the ordering agent, a copy of two documents referring to the inspection of the jewelling, one dated 1915, and signed Ami Meylan. It is further accompanied by what appears to be a photocopy of the invoice or ledger for the finished watch, dated 1921 to Guignard & Golay, London, the agents who ordered the watch on behalf of S. Smith & Sons, and an Extract from the Archives of Audemars Piguet Further accompanied by an invoice from Sydney (“Sid”) Rosenberg confirming the sale of $23,350 in March of 1970 to Robert Olmsted Sid Rosenberg, New York Robert M. Olmsted, New York, March 30, 1970 The Graphic, November 19, 1921 pp. 598 The Horological Journal, December 1990, pp. 206 Gisbert Brunner, Christian Pfeiffer-Belli, and Martin K. Wehrli, Audemars Piguet, 1993, figs. 143a-143, pp. 63 and 166-174

Audemars Piguet

Estimation : 500000 - 1000000 €

Maison de vente : Sotheby’s

Date de la vente : 08/12/2025

Rolex Dial: gilt black, chapter ring, ’roulette’ date Calibre: cal. 1066 automatic, 25 jewels Movement number: DN’885’289 Case: stainless steel, screw-down case back Case number: 461’576 Closure: Rolex stainless steel Oyster bracelet and folding clasp Size: 38 mm diameter, bracelet circumference approximately 180 mm Signed: case, dial and movement Box: no Papers: yes Accessories: Rolex Guarantee and Certificate cards, service invoice dated 1961, photos of the original owner wearing the watch alongside extensive original literature on the Pegasus Overland expedition In 1959, eight men of the British Army’s Parachute Regiment – 12th/13th Battalion, Territorial Army – embarked on a year-long journey around the world known as the Pegasus Overland Expedition. Travelling in two Land Rovers, the team crossed some thirty-four countries over fifty-one weeks, from Europe through Asia and Oceania to Africa, before returning to Britain. Rolex supported the venture by supplying each participant with a GMT-Master reference 6542 – a model introduced only a few years earlier to assist international travellers in keeping track of two time zones simultaneously. The present watch was issued to one of the expedition’s members and has remained in his possession ever since. This example, preserved by the original expedition owner, therefore represents a particularly rare opportunity to encounter a watch directly connected to Rolex’s early association with exploration and long-distance travel, epitomizing the post-war spirit of adventure, endurance and technical ingenuity. The expedition was filmed and broadcast by Television Wales and the West (TWW), in which the owner is captured multiple times wearing the watch during their adventure, highlighting the tangible link between a landmark chapter in British exploration and the early history of the GMT-Master, which went on to become one of Rolex’s most recognisable and enduring models. Notably, Rolex themselves hold another example of these watches in their collection underscoring the significance of this model and the Pegasus Overland expedition in the brand’s heritage.

Rolex

Estimation : 24000 - 45000 €

Maison de vente : Sotheby’s

Date de la vente : 09/11/2025

A 20ct gold open-faced quarter repeating ruby cylinder watch with ratchet key 22’’’ gilded movement, large going barrel, ruby cylinder escapement, plain flat three-arm balance with parachute suspension, blued steel flat balance spring and regulator index, bi-metallic compensation curb, repeating train with partially exposed blued steel spring, racks beneath dial, two polished steel hammers repeating on a single steel gong, bottom plate numbered 6564 [sic] silver engine-turned dial, clous de Paris guilloché patterned centre, twin satin finished chapter rings for hours with black Roman numerals and pearled minutes, crémaillère borders, angled cartouche signed Breguet et fils, blued steel Breguet hands, back numbered B 3564 20ct gold Tavernier case engine-turned à grain d’orge, back centred by small vacant circular cartouche, quarter-turn piston for repeat between I & II, gold hinged cuvette with aperture for winding, cuvette signed Breguet Horger de la Marine Royale, No. 3564, twin crémaillère borders, case back interior with Breguet and Tavernier numbers B 3564, T 3754, Paris assay and discharge marks comprising baby’s head 2 in irregular cartouche (2nd standard gold 840/1000), Pegasus 2 in irregular hexagonal frame (840/1000, 1819-1838), MAB beneath a triangle in lozenge cartouche for Tavernier workshop, all marks repeated to interior of cuvette Measurements diameter 53.5mm case depth 12.5mm weight (excluding key) 112.7g Accompaniments with by gold mounted Breguet ratchet key with steel shank and a Breguet 250th anniversary certificate Purchased from George Brown at Breguet on 24 October 1959. The Breguet archives note that this watch was sold to Leroy who was, at the time, Breguet’s agent in Constantinople. It was returned to Breguet for service several times between 1827 and 1913, during the greater part of this period it appears to have been owned by members of the Defresnes family.

A 20ct gold open-faced quarter repeating ruby cylinder watch with ratchet key

Estimation : 7000 - 14000 €

Maison de vente : Sotheby’s

Date de la vente : 09/11/2025

A 20ct gold open-faced quarter repeating 1st class ruby cylinder watch with date, original Breguet certificate and presentation case, gold chains and ratchet key 23’’’ gilded movement, ruby cylinder escapement, flat three-arm balance with parachute suspension, flat blued steel balance spring with bi-metallic compensation curb, index regulator, repeating train with partially exposed blued steel spring, racks beneath dial, single polished steel hammer striking intermediate hammer to repeat on one coiled steel gong silver clou de Paris engine-turned dial, satin finished chapter rings for hours with black Roman numerals and pearled minutes, crémaillère borders to chapters, subsidiary guilloché date dial with damier pattern and satin finished chapter, blued steel Breguet hands, angular cartouche panel signed Breguet et Fils, twice signed with secret signature Breguet No. 3450 between XI and I o’clock, back of dial stamped B 3450 T 20ct gold Tavernier case, engine-turned à grains d’orge, case back centred with small vacant cartouche roundel, milled band, pull quarter-twist repeating piston between I & II, pendant with rubbed assay, case back interior with baby’s head 2 Paris assay in fitted cartouche (2nd standard gold 840/1000), Pegasus 2 mark in hexagonal cartouche (840/1000 Paris 1819-1838) and numbered B 3450 and T 3724, MAB beneath a triangle within lozenge-shaped cartouche for Tavernier workshop, polished gold cuvette signed Breguet Horger de la Marine Royale no. 3450, aperture for winding with directionals, twin crémaillère borders, interior of cuvette with Paris baby’s head 2 assay and ram’s head restricted warranty mark (Paris 1819-1838) short pink gold Breguet chain with ratchet key, end link by key twice stamped with French eagle’s head assay, additional pink gold Breguet chain terminating in later silver and gold clip with French boar/eagle mixed metal assay Measurements diameter 52.5mm case depth 12mm short chain length with key 165mm longer chain 335mm (excluding later clip) weight excluding chains 111g total gross weight with both chains 134.9g Accompaniments With original Breguet certificate and deep burgundy morocco leather box numbered 3450 to lid, velvet and silk lined fitted interior, base with gilt stamp signed Breguet & Compie, Quai de l’Horloge du palais No. 39 à Paris, and a Breguet 250th anniversary certificate It is extremely rare to find a watch retaining its original signed Breguet certificate and this records the purchaser simply as Monsieur Potemkin. This may refer to Prince Yakov Alekseevich Potemkin (1782–1831), a Guards officer who rose to the rank of general-adjutant and later lieutenant-general in the service of Tsar Alexander I. A cousin of Grigory Potemkin of Taurida, he played a prominent role in the Napoleonic campaigns and was closely associated with the Imperial court. The date is geared to advance each day, however, as with most Breguet watches featuring a date indication, there is no dedicated slide or corrector for adjustment; instead, the owner was expected to advance the date manually, when required, using a wooden peg.

A 20ct gold open-faced quarter repeating 1st class ruby cylinder watch with date, original Breguet certificate and presentation case, gold chains and ratchet key

Estimation : 40000 - 60000 €

Maison de vente : Sotheby’s

Date de la vente : 09/11/2025

A 20ct gold open-faced ruby cylinder watch with a fitted presentation box gilded movement, ruby cylinder escapement, gold three-arm balance with parachute suspension, flat blued steel hairspring, blued steel regulator index with polished curved extension arm for dial regulation silver engine-turned dial, repeated secret numbered signature Breguet No. 4678 between 11 and 1 o’clock, eccentric satin finished chapters with black Roman numerals and outer pearled minute ring, chapters with crémaillère borders, off-set dial centre with damier guilloché pattern, arc-form aperture for regulation against a blued steel plate, dial edge à grains d’orge, angled cartouche signed Breguet above 12 o’clock, gold Breguet hands 20ct gold Tavernier case engine-turned à grains d’orge, bayonet fitted back with securing screw beneath front bezel, case back interior numbered B 4678 and T 4149 with Paris assay Pegasus 2 in irregular hexagonal frame (840/1000, 1819-1838), MAB beneath a triangle in lozenge cartouche for Tavernier workshop, pendant front with Paris ox head assay mark (1822-1838) Measurements diameter 31.7mm depth 6.8mm weight 21.8g Accompaniment With a later Breguet red morocco leather presentation case numbered 4678 to lid, turquoise velvet fitted interior, black base with gilt signature roundel Breguet & Compie quai de l’Horloge du Palais, No. 39 à Paris, numbered below 4678, accompanied by a later associated steel and gilt male key, and a Breguet 250th anniversary certificate Purchased from George Brown at Breguet 20 June 1950.

A 20ct gold open-faced ruby cylinder watch with a fitted presentation box

Estimation : 8000 - 16000 €

Maison de vente : Sotheby’s

Date de la vente : 09/11/2025

An exceptionally rare and very fine and small 20ct gold open-faced half-quarter repeating calendar watch with moon phases and double wheel duplex escapement 14.5’’’ gilded movement, large mainspring barrel, double wheel duplex escapement with ruby impulse pallets and ruby resting roller, bi-metallic compensation balance with 22 platinum screws, parachute suspension on both pivots, flat blued steel balance spring, polished steel hammer striking smaller intermediary hammer to repeat on coiled gong, repeating racks, calendar work and blued steel regulation extension arm mounted to bottom plate, bottom plate numbered 4730 (4 obscured) silvered dial, vertical Roman numerals, outer minute ring, two recessed subsidiary dials for date and day advancing counterclockwise, aperture for regulation between, aperture for moon phases above 6 o’clock, gold Breguet hands, signed and numbered Breguet Neveu et Cnie 20ct gold Joly case, case back, bezel and band engine-turned à grains d’orge, small monogrammed cartouche to centre engraved NR, quarter-turn piston for repeat between 1 and 2 o’clock, slide between 10 and 11 o’clock for revealing female winding square to case back, recessed pushers to band for calendar/moon adjustment marked M, L, S, plain ring pendant, case back numbered 4730 B and 685, case maker’s mark LJ with a bird and pellet in lozenge cartouche for Joly, Paris assay Pegasus 2 in hexagonal cartouche (2nd standard gold 840/1000, 1819-1838), pendant with Paris ox head assay mark in circular cartouche (1822-1838) Measurements diameter 36.5mm depth 7.5mm weight 34.7g Accompaniments With Breguet certificate no. 4428 and a double-ended male/female Breguet ratchet key and a Breguet 250th anniversary certificate Phillips, Hong Kong, December 2015, Lot 320 Breguet himself made only very limited use of the duplex escapement, a system more commonly associated with English watchmaking and later for Swiss watches made for the Chinese market. Admired for the freedom it gave to the balance — imparting an impulse on every other vibration and leaving the remainder of the arc virtually untouched — it demanded exceptional precision, as the locking depths were extremely fine. Although made after the death of Abraham-Louis, the present watch nevertheless reflects the master’s enduring influence. What makes this example especially remarkable is its slender form: just 8 mm thick including the crystal (6.2 mm without) and a compact diameter of only 36.5 mm, a dimension modest even by the standards of a modern wristwatch. The duplex was generally reserved for thicker watches, as its construction demanded greater depth, yet here the Breguet workshop succeeded in incorporating the mechanism into an unusually slim design — made all the more impressive by the addition of repeating and calendar work beneath the dial. The attention to detail is equally distinguished, with a series of refined features: a discreet slide beside the pendant that shutters the winding aperture on the case back, and special adjusters seamlessly integrated into the sides of the case, enabling convenient manual correction of the calendar and moon phases when required. Together, these elements demonstrate the technical ambition and aesthetic sophistication that defined Breguet’s output, even in the hands of his successors. The Breguet Archives record that this watch was sold on 31 December 1829 to Princess Bagration as a present for Colonel Cradock [Caradoc]. At the time serving as British ambassador in Paris, Cradock married Princess Bagration only days later, on 11 January 1830, suggesting the watch may have been a wedding gift. The marriage was not a success and the pair soon separated. Indeed, the Archives note that this watch was bought back by Breguet on 29 December 1830 for Fr. 3,600 and refurbished. During the refurbishing, the Archives note that a new case was made for the watch by Joly whose maker’s mark can be found inside the back. The original case by Tavernier was numbered 4200 and the new Joly case was numbered 685 and stamped accordingly, together with its corresponding Breguet number B 4730. Following the refurbishment, the watch was sold on 29 December 1835 to Nathaniel de Rothschild for Fr. 4,000. John Hobart Cradock 1799-1873 John Hobart Cradock [Caradoc] (the family name was later changed by his father to Caradoc), 2nd Baron Howden (1799–1873), only son of John Francis Cradock, 1st Baron Howden, was educated at Eton and began his career as an officer in the Grenadier Guards. He was appointed aide-de-camp to the Duke of Wellington in Paris after Waterloo, remaining with him until the dispersal of the army of occupation in 1818. Renowned for his striking good looks, he became known in society as “Beauty Caradoc,” a reputation underlined by a succession of romantic entanglements. In Paris he notoriously fought a duel over the Duchesse d’Esclaux, and his liaison with Emily Cowper (later Lady Palmerston, the future wife of the Prime Minister) was equally well known. Caradoc entered the diplomatic service in the 1820s, serving at Berlin and Paris and on missions in Egypt, Greece, and Spain. He was wounded at Navarino (1827) and again at Antwerp (1832). The conspicuous injury he sustained at Antwerp, which obliged him to wear a ribboned sleeve, gave rise to a Parisian fashion known as the manche à la Caradoc, in which women imitated the effect with ribboned or slashed sleeves. On 11 January 1830 Caradoc married Princess Catherine Bagration (1783–1857), born Countess Skavronskaya and widow of Prince Pyotr Bagration, the celebrated Russian general killed at Borodino. Known throughout Europe as “the Naked Angel” for her beauty and diaphanous gowns, Princess Bagration was a central figure in Napoleonic and post-Napoleonic society. Her salons in Vienna and later in Paris attracted leading statesmen, generals, and writers, and her relationships with Metternich, Tsar Alexander I, and others made her one of the most talked-about women of her age. Although the marriage produced no children and ended in separation, it firmly linked Caradoc to one of the most brilliant and cosmopolitan figures of the era. Caradoc succeeded as 2nd Baron Howden in 1839 upon the death of his father and pursued a successful diplomatic career, serving as British minister at Rio de Janeiro and later at Madrid, where he was highly regarded. Promoted lieutenant-general in 1859, he retired to his estate near Bayonne, where he died in 1873.1 Nathaniel de Rothschild (1812-1870) Nathaniel de Rothschild, Baron de Rothschild (1812–1870), was the third son of Nathan and Hannah Rothschild of the London branch of the famous banking family. He eventually pursued his career in the Paris house of the banking dynasty, settling in Paris from 1840. In 1842 Nathaniel married his cousin Charlotte, daughter of James de Rothschild. In 1853 he acquired the Bordeaux vineyards that became Château Mouton Rothschild, establishing a name that endures as one of the world’s great wines, and a few years later purchased 33 rue du Faubourg Saint-Honoré. Nathaniel died in Paris in 1870 and was buried in the Rothschild family vault at Père Lachaise.2 1 Stephens, H., & Matthew, H.  (2008, January 03). Caradoc [formerly Cradock], John Hobart, second Baron Howden (1799–1873), diplomat. Oxford Dictionary of National Biography  https://doi.org/10.1093/ref:odnb/4603 2 Gray, V., & Aspey, M.  (2015, May 28). Rothschild, Nathan Mayer (1777–1836), merchant and financier. Oxford Dictionary of National Biography. https://doi.org/10.1093/ref:odnb/24162

An exceptionally rare and very fine and small 20ct gold open-faced half-quarter repeating calendar watch with moon phases and double wheel duplex escapement

Estimation : 220000 - 400000 €

Maison de vente : Sotheby’s

Date de la vente : 09/11/2025

A rare, unusual and slim 20ct gold open-faced ruby-cylinder watch with Slavonic chapter ring spelling ТРУБЕЦКОИ [Troubetzkoï] with gold chain and ratchet key 14’’’ gilded movement, ruby cylinder escapement, plain three-arm gold balance, parachute suspension, flat blued steel hairspring, broad blued steel index regulator with raised nodule for adjustment through cuvette aperture silver engine-turned dial, repeated secret Breguet signature between 11 and 1 o’clock, eccentric satin finished chapter the numerals replaced by Slavonic characters spelling Troubetzkoï, pearled outer minute ring, chapters with crémaillère borders, off-set dial centre with damier guilloché pattern, dial edge à grains d’orge, satin finished oval panel signed Breguet, both hands of Breguet form - gold hour and later metal minute hand, square open aperture for adjusting hands to central boss 20ct gold case, the back engine-turned à grains d’orge, centred by polished circular cartouche and engraved initials possibly P. T., engine-turned silver band, cuvette with apertures for winding, regulation and securing screw, cuvette signed Breguet Horger de la Marine Royale, No. 3721, twin crémaillère borders, case back interior with Breguet & Tavernier numbers B 3721, T 3815, Paris assay and discharge marks comprising baby’s head 2 in irregular cartouche (2nd standard gold 840/1000), Pegasus 2 in irregular hexagonal frame (840/1000, 1819-1838), MAB beneath a triangle in lozenge cartouche for Tavernier workshop, interior of cuvette with Tavernier’s mark and baby’s head assay repeated, additional ram’s head warranty mark (1819-1838) Measurements diameter 35mm depth 7.8mm weight 37.8g (including chain) weight 33g (approx. without chain) chain length 145mm Accompaniments with a short Breguet chain and double ended ratchet key with Sir David Salomons small gold collection roundel, no. 110 and a Breguet 250th anniversary certificate His Highness Prince Nicholas Troubetzkoï (pour Malicheff) 1821. Louis Desoutter 1922. Sir David Salomons Collection No. 110 (F), purchased from the above. Christie’s, The Celebrated Collection of Watches by Breguet, Part II, 1 June 1965, lot 21, purchased by George Daniels for 400 Guineas, $1,176. Current Collection, purchased through George Daniels as above. Sir David Salmons, Breguet 1747-1823, French Edition, 1923. Daniels, George, The Art of Breguet, London & New York: Sotheby Parke, Bernet, 1975, p. 259, figs. 301 a-b. Breguet, Emmanuel, Breguet Watchmakers since 1775, Revised and Expanded Edition, Swan Éditeur, 2016, p. 220, fig. 259. The dial of Prince Troubetzkoï’s Breguet watch is highly unusual in its use of Slavonic characters in place of conventional numerals on the chapter ring. By this period, the ornate letter forms of Church Slavonic had been almost entirely removed from secular Russian life, following Peter the Great’s introduction of the simplified Civil Script (Grazhdansky Shrift) in the early eighteenth century. By the early nineteenth century, Slavonic script survived almost solely within the liturgical realm of the Orthodox Church, its use outside religious texts increasingly rare. In this light, the use of Slavonic characters on Troubetzkoy’s watch may have been intended as a subtle gesture of cultural or spiritual identity, reflecting the enduring resonance of traditional symbols within Russia’s Enlightenment elite. Breguet and the Russian Market The Russian market was one that Abraham-Louis Breguet was keen to develop, and efforts to establish a firm foothold there began in earnest during the first years of the 19th century. Initially leveraging diplomatic channels through the Russian embassy in Paris, Breguet began supplying watches to dealers and watchmakers in Moscow and St. Petersburg. In 1808, he sent his salesman Lazare Moreau to establish a dedicated Russian branch, named La Maison de Russie, in St. Petersburg. Moreau quickly gained access to elite circles, securing audiences with Tsar Alexander I and ultimately helping Breguet obtain the prestigious titles of Watchmaker to His Majesty and the Imperial Navy. Despite this early success, tensions arose between Breguet and Moreau—Breguet expressing concerns over Moreau’s record-keeping and suspecting him of overreaching his authority as his representative. Nonetheless, the initiative proved commercially fruitful. By 1809, sales to Russia had risen dramatically, with 55% of Breguet’s annual output (74 pieces) destined for Russian clients. While many of these passed through the Maison de Russie, others were purchased directly from Breguet in Paris.1 This flourishing trade came to an abrupt halt in December 1810, following the breakdown of the Franco-Russian alliance originally forged by the Treaty of Tilsit (1807). That same month, Tsar Alexander I issued a ukase prohibiting the importation of French goods, delivering a direct blow to Breguet’s operations in Russia. In the aftermath, Moreau left Russia for England in the spring of 1811, abandoning Breguet’s equipment and materials as well as many unpaid client debts – a devastating commercial setback. Under the terms of the 1807 alliance, Russia had committed to enforcing Napoleon’s Continental System, a blockade intended to isolate Britain economically. However, the policy had severely damaged Russia’s own trade interests. By late 1810, Alexander had begun to reject French influence outright, both economically and politically. Napoleon’s annexation of the Duchy of Oldenburg (ruled by relatives of the Tsar) and his support for a revived Polish state were viewed in St. Petersburg as direct provocations. Tensions escalated rapidly, culminating in Napoleon’s disastrous invasion of Russia in 1812, which ended in the near-total destruction of the French army. Although the conflict continued until Napoleon’s abdication in 1814, Russia emerged as a dominant post-war power and played a leading role at the Congress of Vienna, which permanently redrew the European balance. Trade between Breguet and Russia resumed swiftly once political conditions stabilised. On 2nd April 1814, before Napoleon’s fall, Tsar Alexander I personally visited Breguet at the Quai de l’Horloge while staying in Paris with Talleyrand. Almost from that moment, Russian patronage began to recover steadily, and by 1823, the year of Breguet’s death, Russian clients accounted for approximately 20 percent of total sales, restoring Russia’s position as one of the firm’s most important international markets.2 Prince Nikolai Nikitich Troubetzkoy (1744-1821) Prince Nikolai Nikitich Troubetzkoï, was a senior member of the ancient Trubetskoy princely family and part of the enlightened Moscow aristocracy of Catherine the Great’s reign. A writer and translator, he contributed to Moskovskie ezhemesiachnye sochineniya (“Moscow Monthly Writings”) and produced Russian versions of articles from Diderot’s Encyclopédie. Deeply engaged in the city’s intellectual life, he was associated with the publisher Nikolai Novikov and the Masonic and Martinist circles that flourished among Moscow’s educated elite in the late eighteenth century. In 1792, following the government’s investigation of Novikov’s activities, Troubetzkoï was placed under supervision at his estate in Nikitovka, in the Livny district. Restored to favour under Emperor Paul I, he was appointed senator and awarded the Order of St Anna (1st class) in 1797, later attaining the rank of Actual Privy Councillor. Troubetzkoï spent his final years in Kostroma, he purchased this Breguet watch on 20 March 1821 and died later the same year. 1 Breguet, Emmanuel, Breguet Watchmakers since 1775, Revised and Expanded Edition, Swan Éditeur, 2016, p. 224. 2 Ibid, p. 226.

A rare, unusual and slim 20ct gold open-faced ruby-cylinder watch with Slavonic chapter ring spelling ТРУБЕЦКОИ [Troubetzkoï] with gold chain and ratchet key

Estimation : 24000 - 50000 €

Maison de vente : Sotheby’s

Date de la vente : 09/11/2025

An important and exceptionally fine 20ct gold slim self-winding open-faced Perpetuelle Montre à Tact of Royal Provenance with lever escapement, date and state-of-wind indication gilded movement, lever escapement, jewelled pallets to lever, jewelled wheel train, two-armed compensation balance, parachute suspension to both pivots, steel spring with terminal curve and regulator, platinum perpétuelle weight recessed into the main plate, buffer springs for weight mounted to edge of movement with ruby banking rollers, numbered to bottom plate 4548 silver engine-turned dial, guilloché damier patterned centre and clou de Paris surround, eccentric satin finished twin chapter rings with Roman numerals and pearled minute track, off-set subsidiary seconds at 9 o’clock, aperture for winding beside 3 o’clock, gold moon hands, the minute hand with steel centre and eccentric square aperture for setting to base, two damier fan-form sectors for regulation above 12 and state-of-wind indication below 6 with blued steel serpentine hand, aperture for date outside chapter ring at 9 o’clock, angled cartouche signed Breguet 20ct gold Tavernier case, engine-turned à grains d’orge, with plain gold tapered tact hand mounted to back, touch pins of platinum to band, case back interior with Paris assay and discharge marks comprising baby’s head 2 in fitted frame (second standard gold 840/1000), Pegasus 2 in irregular hexagonal frame (840/1000, 1819-1838), pendant with Paris ox head assay mark (1822-1838), maker’s mark MAB beneath a triangle for Tavernier workshop and numbered B 4548, T 4114 Measurements diameter 63mm depth of case 15mm (excluding tact hand) depth excluding glass and tact hand 11.5mm weight 217.1g (excluding key and chain) Accompaniments with a later short gold chain and double ended key, later Desoutter morocco leather fitted presentation case numbered to the lid 4548 and a Breguet 250th anniversary certificate Sold on 4 July 1827 to King George IV. Le Roy et Fils, 57 New Bond Street, sold in 1908 for £400. Sir John Prestige. Sotheby & Co., Catalogue of Ten Important Watches and a Timekeeper, The Property of Lady Prestige, 22 April 1963, lot 11 sold for £3,100 ($8,680) to Chollet. Current Private Collection, purchased from the above. Musée International d’Horlogerie, La Chaux-de-Fonds, 1976, Vitrine 5, No. 3. Given its historical importance and outstanding quality, this Royal watch has been featured in numerous publications and was included in the landmark exhibition L’Oeuvre d’Abraham-Louis Breguet, held at the Musée International d’Horlogerie in La Chaux-de-Fonds in 1976. That retrospective brought together more than 120 Breguet watches and clocks, among them the legendary no. 160, the so-called Marie Antoinette, and no. 92, made for the Duc de Praslin — a watch almost as technically ambitious as the Marie Antoinette itself. The present watch, no. 4548, was among the highlights and was displayed in Vitrine 5, which contained a select group of ten Breguet perpétuelle watches. King George IV was one of Breguet’s most loyal patrons. As Prince of Wales, he began purchasing pieces by Breguet in the 1790s,1 continued during his tenure as Prince Regent during his father’s illness, and carried this patronage into his reign as King. Among his collection were some of the most significant clocks and watches ever made by Breguet, reflecting both his appreciation of science and his desire for the finest objects to adorn his residences and accompany him in daily life. This exceptional and slim self-winding perpétuelle montre à tact was one of the last watches he acquired, and it embodies many of the key refinements and complications that Breguet perfected. Although made after the death of Abraham-Louis, this watch, no. 4548, encapsulates Breguet’s genius for uniting fashionable elegance with technical refinement and practical utility, a creation ideally suited to a monarch who prized distinction as much as display. With its automatic winding, calendar display, and ingenious tact mechanism for telling the time silently or in darkness, it was conceived for the practical demands of daily life. Breguet’s perpétuelle design, developed between 1775 and 1779, was his first major horological triumph and laid the foundation of his future reputation. It transformed the unreliable early self-winding watch into a practical and efficient system, employing a dense platinum weight, twin mainspring barrels for a stable 60-hour reserve, and discreet regulation hidden beneath the bezel. It was in the perpétuelle that Breguet developed his own version of the detached lever escapement and first introduced his ingenious parachute shock-protection device. From the outset, the perpétuelle was highly prized for its combination of innovation, reliability, and refinement; early owners included Marie Antoinette and the Duc d’Orléans, helping to establish Breguet as the foremost watchmaker of his age. The perpétuelle was always among Breguet’s most expensive productions, often enhanced with additional complications such as repeating work. From about 1812 it entered a final stage of development with a markedly slimmer movement in which the oscillating weight was recessed into the main plate – as seen in the present watch. Although Breguet continued to produce some examples with the earlier large platinum weight mounted above the back plate until at least 1817, the recessed construction offered clear advantages: it reduced the overall depth and produced a sleeker profile, better aligned with the refined aesthetic that Breguet had honed since his return from exile in Switzerland. This watch incorporates many of Breguet’s signature design elements: an engine-turned dial, fan-shaped sectors displaying regulation and state of wind, the latter fitted with a distinctive serpentine hand to differentiate it from the regulator. The eccentric dial is further characterised by its laterally shifted, off-centre chapter ring, a feature introduced by Breguet’s son in the mid-1820s.2 In the space this creates to its left, the date is shown through a small window. Unlike many perpétuelles, this example also includes a provision for manual winding through the dial and a further opening in the dial allows regulation of the movement. With hand-setting, winding (when required) and regulation all performed entirely from the front, the movement was thereby protected from unnecessary intervention. To the reverse, Breguet’s ingenious tact system enabled the time to be read silently by touch, a refinement that allowed the King to consult the hour discreetly, whether in company or in darkness. Though often vilified and caricatured during his lifetime for self-indulgence and extravagance, later assessments have recognised King George IV as one of the most discerning royal patrons of the arts since Charles I. His collections embraced Old Masters such as Rembrandt and Rubens; he supported contemporary painters including Reynolds, Gainsborough, and Constable; and he welcomed the sculptor Canova to London. He also valued science, bestowing honours on Humphry Davy, William Herschel, and William Congreve. His passion for horology, inherited from his father, found its most refined expression in his loyalty to Breguet, from whom he acquired a succession of remarkable timepieces—including the present watch. Within the Georgian Papers is a Mémoire des Ouvrages de la Maison Breguet—an account of works supplied to the Royal Household through Breguet’s London agent, Recordon, but still unpaid. Dated 20 January 1812 and addressed to His Majesty the Prince Regent, the memorandum (GEO/25792) lists three Breguet watches and a clock for which payment was outstanding. The first entry is no. 1297, an important tourbillon watch delivered to King George III in 1808 for £280 (see Sotheby’s London, 14 July 2020, lot 28). The others are: no. 2122, a répétition de première classe delivered 30 October 1808 for £156; no. 2187, “une très petite répétition chronomètre” delivered 1 November 1810 for £186; and no. 2661, a small travelling clock with calendar, moon phases, alarm, and repetition, delivered 2 November 1811 for £375. The total outstanding came to £997. Annotations to the invoice record part-payments beginning in March 1812 (£297). A letter from Breguet’s agent Moreau to Colonel McMahon, dated 29 March 1813 (RA/25862), pleaded for his assistance in obtaining the remaining £700. Moreau wrote: “I hope, Sir, considering the time elapsed, and when you reflect that my departure from this country cannot possibly take place unless this affair is settled, all these reasons…will induce you to procure me the settlement of my account.” His appeal appears to have been successful: further annotations show a payment of £300 in May 1813 and the final £400 in October the same year. As Prince Regent and later King, George IV continued to acquire remarkable works from Breguet, securing during the 1810s and 1820s some of the firm’s most ambitious and technically advanced creations — of which the present watch is one of the rare examples now in private hands. Other notable pieces from George IV’s collection include: George IV (1762–1830) was the eldest son of George III and Queen Charlotte, born at St James’s Palace on 12 August 1762. From childhood he received a demanding education at Kew, where he showed talent for languages, music, and drawing, as well as a gift for mimicry. His charm was often offset by a taste for extravagance, which quickly became a defining feature of his life. As Prince of Wales he immersed himself in fashionable society, accumulating huge debts that were largely channelled into the remodelling of Carlton House with the architect Henry Holland. The project became a showcase of his collecting passions: agents in London, Paris, and further afield secured him paintings, bronzes, furniture, and clocks, which played a central role in furnishing the residence. In 1785 he secretly and illegally married Maria Fitzherbert, a Roman Catholic widow, and in 1795 was pressured into marrying his cousin, Princess Caroline of Brunswick. The union collapsed within months, though it produced his only child, Princess Charlotte. His treatment of her was often harsh: he dismissed her servants, restricted her movements, and sought to arrange a politically advantageous marriage to the Prince of Orange, which she resisted. Charlotte’s sudden death in childbirth in 1817 was nonetheless a devastating personal blow and a national tragedy, leaving George without a direct heir and throwing the succession into uncertainty. Charlotte’s great friend and confidante, with whom she regularly corresponded, was Margaret Mercer Elphinstone (later the Countess of Flahault), whose Breguet watch is included in this auction – see lot 64. From the late 1780s the repeated bouts of illness suffered by his father, George III, brought the question of a regency to the fore. A major crisis erupted in 1788–89 when the king’s incapacity seemed permanent, but parliament avoided handing full powers to the prince. It was only after George III’s final mental collapse in 1811 that George was formally installed as Prince Regent, ruling in his father’s name until the king’s death in 1820, when he succeeded as King in his own right. His reign was politically turbulent. The scandal of Queen Caroline’s attempted exclusion in 1820 aroused widespread public sympathy for her and hostility toward the king. Later, he abandoned his old Whig allies, leaned on Tory governments, and, despite his misgivings, was forced to accept Catholic Emancipation in 1829. George IV’s name is indelibly linked with some of Britain’s most iconic architectural projects. At Brighton he transformed a seaside villa into the fantastical Royal Pavilion; in London he pressed ahead with John Nash’s grand design for Regent Street and Regent’s Park; and as king he commissioned the enlargement of Buckingham Palace and the remodelling of Windsor Castle. These ventures embodied his taste for drama, scale, and splendour. In his final years he became increasingly reclusive, plagued by ill health and excessive drinking, and died at Windsor on 26 June 1830.3 1 Breguet, Emmanuel, Breguet Watchmakers since 1775, Revised and Expanded Edition, Swan Éditeur, 2016, p. 204. 2 Ibid, p. 234-5. 3 For a full biography of George IV see: Hibbert, Christopher, George IV (1762-1830), Oxford Dictionary of National Biography, 2004.

An important and exceptionally fine 20ct gold slim self-winding open-faced Perpetuelle Montre à Tact of Royal Provenance with lever escapement, date and state-of-wind indication

Estimation : 300000 - 800000 €

Maison de vente : Sotheby’s

Date de la vente : 09/11/2025

A 20ct gold open-faced half-quarter repeating jump hour watch 20.5’’’ gilded movement, ruby cylinder escapement, plain flat three-arm balance with parachute suspension, blued steel flat spiral hairspring and regulator index, bi-metallic compensation curb, polished steel hammer striking intermediary hammer to repeat on a single coiled gong silver engine-turned dial, clou-de-Paris guilloché centre, satin finished twin chapter rings with black Roman numerals and pearled minutes, eccentric subsidiary seconds having recessed centre and damier engine-turning, angled cartouche signed Breguet et Fils, crémaillère borders, blued steel Breguet hands 20 ct gold engine-turned Tavernier case and band à grains d’orge, case back centred by small vacant circular cartouche, ¼ turn repeating piston to pendant, polished gold cuvette signed and numbered Breguet Horger de la Marine Royale No. 3795 and with crémaillère borders, case back interior numbered B 3795, T 3918, Tavernier case maker’s mark MAB beneath a triangle in lozenge cartouche, Paris assay and discharge marks comprising baby’s head 2 in irregular cartouche (2nd standard gold 840/1000), Pegasus 2 (840/1000, 1819-1838), cuvette interior with Tavernier stamp repeated, baby’s head 2 assay and ram’s head restricted warranty mark (1819-1838), Paris Ox head assay to pendant (1822-1838) Measurements diameter 52.5mm depth 13mm weight 98.7g Accompaniments with a Breguet Certificate no. 4451 dated 19 December 2016 and a Breguet 250th anniversary certificate For a note on Jousselin & Brasch, see lot 63, and for details on Breguet’s jump hour watches, see lot 4.

A 20ct gold open-faced half-quarter repeating jump hour watch

Estimation : 30000 - 50000 €

Maison de vente : Sotheby’s

Date de la vente : 09/11/2025

A 20ct gold open-faced extra flat ruby cylinder Montre Médaillon watch with a gold chain and ratchet key gilded movement, ruby cylinder escapement, gold three-arm balance with parachute suspension, blued steel hairspring, extended blued steel regulation arm with arc for dial aperture, bottom plate numbered 5066 silver dial, damier guilloché pattern, satin finished chapter rings with crémaillère borders, black Roman numerals and pearled minutes, arc-form aperture for regulation, gold Breguet hands, angled cartouche signed Breguet, numbered dial back 5066 20ct gold extra flat Joly case, engine-turned back, bezel and band à grains d’orge, bayonet fitted back turning to reveal winding aperture, concealed securing screw for case back dial side at X, case back interior numbered 5066 B and 712, case maker’s mark lozenge-shaped cartouche with a bird and pellet above and below L J for Joly, Paris Pegasus 2 assay in irregular hexagonal cartouche (second standard gold 840/1000, 1819-1838), pendant dial side with Paris Ox head assay (1822-1838) and rubbed assay to reverse Measurements diameter 31mm depth including crystal 6.4mm length of chain/key 142mm weight of watch approx. 22g. weight of watch with chain/key 28.2g Accompaniments with a gold Breguet double-ended ratchet key with male/female squares and short chain, Breguet certificate no. 2640, dated 5 March 1923, a Breguet 250th anniversary certificate and original red morocco leather presentation case, the lid with gilt numbering 5066, base with gilt oval stamp Breguet 39, Quai d’Horloge du Palais et 4 Place de la Bourse, à Paris. The Breguet Archives note that three certificates have been issued for this watch, nos. 1346, 2626 and 2640. Originally sold to Monsieur Wenham in Russia on 8 December 1832, the archives record that it was returned to Breguet for service on three occasions: first by le Comte de Fersen of Dresden in 1835, then by Princess Soltykoff in 1851, and finally by Monsieur Kotschoubey in 1859. Jousselin & Brasch were a merchant and banking house established in St. Petersburg and are listed among the city’s principal firms in the 1835 General Mercantile Guild Almanac for the Austrian Empire.1 They also acted as agents for Breguet in Russia. A series of documents published by Felipe Fernández-Armesto in Anuario de Estudios Atlánticos 27 (1981) record their dealings with the Betancourt family: in 1822–23, correspondence with Agustín de Betancourt concerning “certain gold watches supplied by the house of Breguet in Paris” (doc. 18, p. 254); a receipt issued in St Petersburg on 4/16 August 1824 to Alfonso de Betancourt for a Breguet gold watch valued at 2,500 francs (doc. 19, p. 257); a power of attorney granted by Breguet in Paris, 20 August 1824, authorising Jousselin & Brasch to collect amounts owed (doc. 20, p. 258); and a further receipt signed in St Petersburg on 17/29 March 1825 acknowledging payment by Madame de Betancourt for a Breguet gold watch (doc. 21, p. 259).2 Their wider role as intermediaries for Breguet’s Russian clientele is confirmed by the Breguet company archives: for example, Breguet no. 3795 was delivered to Jousselin & Brasch for Prince Belosselsky on 11 January 1823, and no. 4005 was sold via the firm to Prince Sapoukhin on 1 May 1823.3 To protect French watchmakers from a surge of imported and often counterfeit timepieces—despite a ban on foreign watch imports under the law of 5 Brumaire Year V— two new special assay marks for watches were introduced from 19 September 1821 until 1838. These marks, applied alongside standard hallmarks, aimed to curb the use of fake or stolen assay stamps, particularly those originating from former French territories like Switzerland. Comprising an Ox head for gold or crayfish for silver watches, these marks were struck on the pendant, dial side (standard hallmarks continued to be applied to the inside case backs).4 1 Franz B. Fray (comp. and ed.), Allgemeiner Handlungs-Gremial Almanach für den österreichischen Kaiserstaat. Jahrgang 1835 (Vienna, 1835), 778–779. 2 Fernández-Armesto, Felipe “Nueva aportación documental sobre Agustín de Betancourt y Molina y su familia,” Anuario de Estudios Atlánticos 27 (1981), 239–259, here docs. 18–21, pp. 254–259. 3 See Antiquorum Geneva auctions 14 November 2004, lot 83 and 18 October 1997, lot 39. 4 See: Fieggen, M., French Precious Metal Hallmarks 1789 to date, Paris, 2024, pp. 56-57.

A 20ct gold open-faced extra flat ruby cylinder Montre Médaillon watch with a gold chain and ratchet key

Estimation : 8000 - 12000 €

Maison de vente : Sotheby’s

Date de la vente : 09/11/2025

Pegase Pop Bleu Indigo, Ecru and Noir Retourne Herbag Zip 31cm in Hunter Cowhide Leather and Canvas, 2020 | 愛馬仕 | PEGASUS POP深藍飛馬圖案帆布併黑色VACHE HUNTER牛皮31公分HERBAG ZIP包鍍鈀金屬件,2020 Description Hermès Pegase Pop Bleu Indigo, Ecru and Noir Retourne Herbag Zip 31cm in Hunter Cowhide Leather and Canvas, 2020 Includes Clochette, Lock and Keys, Box, Dustbag, Care Booklet Size: 31 31 x 25 x 10cm ----- 愛馬仕 PEGASUS POP深藍飛馬圖案帆布併黑色VACHE HUNTER牛皮31公分HERBAG ZIP包鍍鈀金屬件,2020 包括防塵袋、鎖、 鑰匙、鑰匙套、鑰匙套防塵袋、保養說明書和盒 尺寸: 31 31 x 25x 10cm Condition Report

Sac Hermès PEGASUS POP, bleu indigo, écru et noir, 31 cm, en cuir de vachette Hunter et toile, 2020 | Hermès | Sac Hermès PEGASUS POP, 31 cm, en toile bleu foncé à motif Pégase et cuir de vachette Hunter noir, avec pièces métalliques palladiées, 2020

Estimation : 20000 - 25000 €

Maison de vente : Sotheby’s

Date de la vente : 18/12/2020