Important Modern & Vintage Timepieces

Geneva, May 14, 2017

LOT 518

AUDEMARS PIGUET REF. 25767, NO. 1, PERPETUAL CALENDAR DRESS WATCH WHITE GOLD AND RUBYS Audemars Piguet, No. 1, movement No. 363690, case No. D56558, Ref. 25767BC. Sold in 1994. Very fine, possibly unique, rare and impressive, large, 18K white gold diamond and ruby pocket watch with perpetual calendar and moon phases.

Two-body, solid, polished, case and dial set with 85 brilliant-cut diamonds and 52 baguette-cut stones for 18.2 carats, hinged back to stand the watch, sapphire crystal. Mother of pearl and diamond-set with applied ruby indexes, subsidiary dials for the months and four-year cycle, days of the week, date, aperture for the moon phases and age of the moon. Blued steel cathedral hands. Cal. 5025/2821, rhodium plated, straight line lever escapement, monometallic compensation balance, self-compensating blued steel Breguet balance spring.