Patek Philippe

Brand Patek Philippe, Geneva Model single-button chronograph Year circa 1912 Reference - Movement No. 157 258 Calibre 18’’’ CC, manual-winding, 25 jewels Case No. 407 876 Material/s yellow gold (18-carat) Dimensions Ø 47.7 mm. Thickness 10 mm. Weight 76.1 gr. (approx.) Signature dial, case and movement Accessories original fitted box , Certificate of origin Patek Philippe Pocket watch, ‘Paris’-style case, single-button chronograph, minute counter, amber enamel dial, Roman numerals; yellow gold (18-carat) -- A chronograph pocket watch, original box and papers -- Yellow gold (18-carat), open-face, keyless-winding, round-shaped, pocket watch, with subsidiary seconds at 6 o’clock and two horological complications: • 1/5 second chronograph (activated by the single round-shaped push-piece located on the crown; start, stop and return to zero functions) with outer ring divided in 60; safety bolt locking the chronograph’s functions (slide at 1:30) • Instantaneous 30-minute counter (subsidiary dial at 12 o’clock) Winding and time-setting by the crown on the pendant. -- Case: four-piece ‘bassine effilée’, ‘Paris’-style case, polished; gold cuvette (dome) engraved in taille-douce (fine cut) with the manufacturer’s name and serial number; oval-shaped clipped bow. Dial: egg-shell ‘amber’ colour enamel (three-piece), with black painted radiating Roman numerals; external minute track divided five by five with black painted radiating Arabic numerals and lines; blued steel ‘Breguet’ hands. Movement: calibre 18’’’ CC (ébauche registered in 1910), manual-winding, 25 jewels, rhodium-plated with ‘fausses côtes’ decoration, going barrel, straight-line equilibrated lever escapement, cut bimetallic compensated balance with gold poising screws, blued steel hairspring with terminal curve, polished steel index-regulator with swan-neck spring and micrometric screw; chronograph work on the top plate. -- The Extract from the Archives, dated June 10, 2020, mentions that this watch was made in 1912 and sold on October 16, 1923.