Patek Philippe, a gentleman's 18ct. gold wristwatch, Ref: 2509, circa 1959, silvered dial with raised gilt baton markers, subsidiary seconds, 18-jewel movement adjusted to heat, cold, isochronism and five positions, numbered 725586, micrometer adjustment to the regulation, dust cover, case with screw back, numbered 2509, 689656, engraved inscription on the reverse, dial, movement and case signed, 34mm, associated 18ct. gold bracelet, Patek Philippe box and certificate. See Illustration (Plate )