Important Modern & Vintage Timepieces

Geneva, May 13, 2012

LOT 413

AUDEMARS PIGUET, ROYAL OAK, QUANTIÈME PERPÉTUEL AUTOMATIQUE SQUELETTE, NO. 028 Audemars Piguet, Genève, "Royal Oak -Quantième Perpétuel Automatique Squelette", No. 028, No. 286916, case No. C46156, Ref. 25636BA. Made in 1983. Very fine and rare, octagonal, skeletonized, self-winding, water-resistant, 18K yellow gold wristwatch with perpetual calendar, phases and age of the moon and an 18K yellow gold Audemars Piguet bracelet with concealed deployant clasp. Accompanied by an Audemars Piguet Certificate of Origin.

C. Three-body, solid, polished and brushed, octagonal bezel set with 8 hexagonal nuts embanked in 8 screws on the case back, correctors on the band, transparent case back, sapphire crystals. D. Transparent, subsidiary beige painted ring dials for the days of the month, of the week, the months and the age of the moon, aperture for the moon phases, outer minute track. Black oxydized gold feuille hands. M. Cal. 2120/2800SQ, gilt, hand-engraved and skeletonized, 38 jewels, straight-line lever escapement, Gyromax type balance adjusted to heat, cold, isochronism and 5 positions, shock absorber, self-compensating fl at balance spring, hand-engraved and skeletonized rotor with 21K gold segment. Dial, case and movement signed. Diam. 39 mm. Thickness 9 mm.