PATEK PHILIPPE, POCKET CHRONOMETER, YELLOW GOLD | Important Modern & Vintage Timepieces. | Geneva, March 21st, 2020
PATEK PHILIPPE, POCKET CHRONOMETER, YELLOW GOLD, Very fine and rare, 18K yellow gold, open-face, keyless-winding, roundshaped, pocket chronometer, with subsidiary seconds at 6. The certificate mentioned that this watch was sold on November 7, 1913. Case-back engraved in taille-douce (fine cut) with the cypher “A R”. Cuvette (dome) engraved with the name of the original owner “ Armand Rolloy ”. Movement based on the French invention patent No. 142 376, delivered on April 16, 1881, to Jean-Adrien Philippe (1815-1894), Geneva, for a “régulateur de precision” (precision-regulating device for fast / slow by means of an eccentric snail). Movement also based on the Swiss invention patent No. 2 680, delivered on September 27 1890, to Patek, Philippe & Cie, Geneva, for a “Remontoir avec mise à l’heure perfectionné” (the definitive version of the keylesswinding and setting device), and, on the US design patent No. 20 483, delivered on January 13, 1891, to Adrien Philippe, Geneva, for a “Watch bridges for Watch-Movements”. The certificate mentioned that this watch was sold on November 7, 1913.Brand Patek Philippe, Geneva
Model Pocket Chronometer with First Class Bulletin de marche from the Astronomical Observatory of Geneva
Year Sold on November 7th, 1913
Numbers 268129
Caliber 18''', "Extra Quality", brass-Invar Guillaume balance with gold and platinum poising screws and blued steel hairspring with terminal curve, diamond end-stone, index regulator with swan-neck spring and micrometric screw, adjusted by Charles Batifolier (1867-1924), Geneva no. 153538
Dimensions 49,5 mm.
Signature dial, case and movement
Accessories original fitted box, certificate of origin, copy of the Bulletin de marche of the Astronomical Observatory of Geneva (dated November 9, 1993), Extract from the Archives
