Patek Philippe 600J

Brand Patek Philippe, Geneva Year circa 1937 Reference 600 J Movement No. 880 036 Calibre 17’’’ 21/12, 18 jewels Case No. 295 130 (by Antoine Gerlach, Geneva) Material/s yellow gold (18-carat) Dimensions Ø 44.6 mm. Thickness 9.2 mm. Weight 55.6 gr. (approx.) Signature dial, case and movement Yellow gold (18-carat), open-face, keyless-winding, round-shaped, thin Art Deco pocket watch, with subsidiary seconds at 6 o’clock. Case: three-piece, polished, “carrure plate”, large rectangular-shaped screwed bow. Dial: silver colour, two-tone, “Fab. Suisse” mention, with applied radiating yellow gold lapidated “Obus” indexes (at 3, 9 and 12 o’clock) and square lapidated indexes (at 1, 2, 4, 5, 7, 8, 10 and 11 o’clock) in large circle; “Fab Suisse” mention at 6 o’clock; yellow gold “Feuille” leaf-shaped hands. Movement: calibre 17’’’ 21/12, 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 swan-neck spring and micrometric screw.