PATEK PHILIPPE REF. 725, "AMERICAN" DIGITAL
PERPETUAL CALENDAR YELLOW GOLD
Patek Philippe, Genève, movement No. 931098, case No. 691638. Ref. 725. Made in 1951.
Extremely fine and very rare, 18K yellow gold, keyless dress watch with linear digital
perpetual calendar and moon phases. Accompanied by the Extract from the Archives.
Three-body, "moderne" with concave bezel, polished and brushed, correctors on the
flat band, inverted U-shaped bow.
Brushed silver, applied yellow gold faceted baton indexes, outer minute divisions,
aperture for the digital display of days of the week, months and date, aperture at 6 for
phases of the moon concentric with subsidiary seconds. Yellow gold dauphine hands.
Cal. 17''' 170, rhodium-plated, fausses cotes decoration, 18 jewels, straight-line
lever escapement, cut bimetallic compensation balance adjusted to heat, cold,
isochronism and five positions, self-compensating blued steel
Breguet balance spring, swan-neck micrometric regulator.