Patek Philippe Perpetual Calendar 2497 J SC

Brand Patek Philippe, Geneva Retailed Gübelin, Zürich (Switzerland) Year circa 1951 Reference 2497 J SC (Seconde au Centre or Second at the Centre) (1st series) Movement No. 888 002 Calibre 27-SC Q, manual-winding, 18 jewels Case No. 674 367 (by Emile Vichet, Geneva) Material/s yellow gold (18-carat) Bracelet leather strap Buckle yellow gold (18-carat) pin-buckle, signed Dimensions Ø 36.8 mm. 44.1x 36.8 mm. Thickness 13.1mm Signature dial, case and movement Accessories Certificate of origin (with a typewritten mention of Henry Stern Watch Agency, Inc.’s address in New York), Gübelin invoice (dated Zürich, April 07, 1954, for the amount of CHF 2 925.- / USD 683.41), original fitted box, Extract from the Archives. Patek Philippe Ref. 2497 J SC (Seconde au Centre or Second at the Centre) (1st series), centre-seconds, perpetual calendar, moon phases, oversized case, concave bezel, stepped lugs, flat case-back, silver dial, Arabic numerals and dot indexes; nicknamed ‘2-4-9-7’ and ‘Vichet Case’ by collectors; yellow gold (18-carat) -- A centre-seconds perpetual calendar wristwatch, with silver dial and Arabic numerals, ‘Full Set’; the second ever made -- Yellow gold (18-carat), manual-winding, round-shaped, gentleman’s wristwatch, with centre-seconds and five horological complications: • Half-instantaneous perpetual bissextile calendar à guichets (with apertures) • Date of the month (subsidiary dial at 6 o’clock) • Day of the week (aperture at 11 o’clock; indications given in English) • Month of the year (aperture at 1 o’clock; indications given in English) • Phases of the moon (aperture at 6 o’clock) -- Case: three-piece, polished, rounded case-band, concave bezel, large fluted well turned down lugs, flat snap-on case-back; polished crown. Dial: silver colour, with yellow gold applied suspended Arabic numerals (2-4-8-10-12) and dots (1-3-5-7-9-11); external minute track divided five by five, with 1/5th of a second, with black painted radiating lines, and, inner radiating and revolving Arabic numerals (5 to 60); yellow gold “Feuille” leaf-shaped hands. Movement: calibre 27-SC Q, manual-winding, 18 jewels, rhodium-plated with ‘fausses côtes’ decoration, going barrel, straight-line lever escapement, cut bimetallic compensated balance with gold poising screws, blued steel hairspring with terminal curve, polished steel index-regulator with spring and micrometric screw, adjusted to heat, cold, isochronism, and 5 positions, Geneva Quality Hallmark (“Poinçon de Genève” / Geneva Seal); calendar work on the main plate, under the dial. -- The Extract from the Archives, dated September 19, 2017, mentions that this watch was made in 1953 and sold on August 17, 1953. The watch was delivered at this date to Gübelin, Zürich (Switzerland), and sold on April 07, 1954, to Raymond H. Gaston, Houston, Texas (U.S.A.).