Omega, Seamaster 300 stainless steel wristwatch, Ref. 165014-64, movement Serial no. 22598080, c. 1964, cal. 550 automatic copper-finished lever movement, 17 jewels, mono-metallic compensation balance, black dial with luminescent indexes and Arabic numerals, luminescent arrow hands and sweep centre seconds, double steel and rotating, black bezel calibrated for 60 units, dial, case and movement signed, with replacement bracelet, 38 mm (case)