$28,750
“Chicago” Audemars Piguet, Genève, "Jules Audemars, Sunrise - Sunset - Equation du Temps", No. 488695, case No. E43292, Ref. 25934BA. Produced in a limited quantity each year since 2000. Very fine and important, astronomic, self-winding, water-resistant, 18K yellow gold gentleman's wristwatch with perpetual calendar, leap year, moon phases, sunrise and sunset for the city of Chicago, equation of time, 40-hour autonomy and an 18K yellow gold Audemars Piguet deployant clasp. Three-body, solid, polished and brushed, transparent case back with five screws, engraved bezel with graduation for the equation of time and Chicago’s latitude of 11h 50’, straight lugs, sapphire crystals. "Guilloché" silver with applied luminous markers and yellow gold triangular indexes, subsidiary dials for the date, days of the week at 6, 12-hour sunrise dial at 9 and 24-hour sunset dial at 3, aperture for the leap year at 1, the months and the aperture for the moon phases at 12. Black and skeleton "alpha" hands. Cal. 2120, rhodium plated, "fausses côtes" decoration, 41 jewels, straight line lever escapement, Gyromax balance adjusted to heat, cold, isochronism and five positions, shock-absorber, self-compensating free-sprung flat balance-spring, hand-engraved and skeletonized rotor with 21K gold segment. Dial, case and movement signed.Diam. 39 mm.
Auctioneer:
Antiquorum
Date:
2004-12-01
