23½’’’ frosted gilded movement, lever escapement, mono-metallic compensation balance, steel hairspring with Breguet overcoil, parachute suspension, precision micrometer regulation, crescent-shaped heavy platinum perpétuelle weight partially recessed into the main plate, the front edge of the weight with recess to accommodate steel retaining arc-form bridge mounted with large buffer springs, signed Breguet No. 4

silver engine-turned dial, guilloché à grains d’orge, eccentric time dial, satin finished chapter ring with Roman numerals, fixed world time chapter with 42 international cities/locations, inner rotating 24-hour ring divided into diurnal/nocturnal hours, fan-form sector for state-of-wind indication from 0-45, crémaillère borders, oval plaque signed Breguet No. 1055

18ct yellow gold case, rounded bezels, milled band with two recessed pushers for adjusting 24-hour ring, glazed exhibition case back, plain ring pendant, case back bezel signed Breguet 1055 F, pendant with flat crown for manual wind/hand-setting, Swiss Helvetia head assay mark

Measurements

diameter 62mm

depth 17.5mm

weight 224g

chain length with key extended 68mm

Accompanied

with two gold Breguet pin adjusters, one with short chain and a green leather Breguet fitted presentation case and a Breguet 250th anniversary certificate

This highly unsual piece was developed by Breguet when it was part of Investcorp in the middle of the 1990’s.

The architecture of the movement is reminescent of the 18th Century creations of the Master, especially with the platinum pendulum powering this perpétuelle timepiece.

Interestingly, the development of the mecanism was made by Michel Parmigiani.

The watch was made as a limited edition of only six pieces, further elevating the desirability of the present lot.