Yellow Gold Ref. 3415 Patek Philippe & Cie, Genève, No. 766333, case No. 2609689, Ref. 3415. Made in 1960. Very fine and rare, self-winding, water-resistant, 18K yellow gold wristwatch with a 14K yellow gold mesh bracelet. Accompanied by a certificate. Two-body, solid, polished, screwed-down case back, flat and stepped bezel, straight curved lugs. Ivory colored with applied yellow gold baton indexes, subsidiary seconds dial. Yellow gold baton hands. Cal. 12-600 AT, stamped with the Seal of Geneva quality mark, rhodium-plated, fausses cotes decoration, 30 jewels, straight-line lever escapement, Gyromax balance adjusted for heat, cold, isochronism and five positions, shock absorber, self-compensating Breguet balance spring, swan-neck micrometer regulator, 18K gold rotor. Dial, case and movement signed. Diam. 35 mm. Thickness 11 mm.