47,500 CHF
PATEK PHILIPPE – POSSIBLY UNIQUE MOVEMENT & POWER RESERVE & SECONDS POSITIONING - SILVER LEVER CHRONOMETER NAVIGATION WATCH FOR GENEVA OBSERVATORY TRIAL Patek Philippe & Cie. , Genève, "Montre de Torpilleur" No. 191833, case No. 625970, Ref. 738, the movement made in 1920 and encased in 1943, sold on December 30th, 1953. Exceptionally fine and possibly unique, large, silver, keyless, “Extra” adjusted lever chronometer navigation watch with Guillaume balance, powerreserve indication at 9 and seconds at 3. Accompanied by the Extract from the Archives and wooden deck box. Four-body, "bassine", polished. Hinged silver cuvette. Brushed silvered, radial champlevé Roman numerals, outer minute track, subsidiary seconds at 3 o’clock, 36-hour power-reserve indication at 9 o’clock. Blued steel spade hands. 42 mm. (19’’’), rhodium plated, fausses côtes decoration, pillar plate under the dial with oeil de perdrix fi nishing, 23 jewels, adjusted “Extra”, very high quality straight line calibrated equidistant lever escapement, anibal-brass Guillaume compensation balance with poising wings on the balance arm, gold and platinum temperature and meantime adjustment screws, blued steel Breguet balance spring with inner and outer terminal curves, ruby banking pins in shape of small plates inserted into the bridge, punched twice with Seal of Geneva Quality marks, swan-neck micrometric regulator, wolf’s tooth winding, special mainspring ratchet wheel click preventing over winding and Maltese
Auctioneer:
Antiquorum
Date:
2012-05-13
