The Private Collection of Theodor Beyer

Hotel Baur Au Lac, Zurich, Nov 16, 2003

LOT 123

Patek Philippe & Cie., Genève, No. 931259, case No. 327505, Ref. 725/4, circa 1958. Very fine 18K gold, astronomical keyless dress watch with moon phase digital perpetual calendar, in original mahogany fitted box. Accompanied by the Extract from the Archives.

C. Three-piece, "variée carrure plate", polished and satiné. D. Satiné silver with applied gold Arabic numerals and indexes, aperture for digital display of days of the week, months and dates, subsidiary seconds with inner moon phase aperture. Gold "dauphine" hands. M. 16''', rhodium-plated, "fausses côtes" decoration, Seal of Geneva,18 jewels, straight line lever escapement, cut bimetallic balance, adjusted for heat, cold, isochronism and 5 positions, blued steel Breguet balance spring with swan neck micrometer regulator.Dial, case and movement signed.Diam. 46 mm.