Omega Speedmaster Professional 105.012-64

Omega. A stainless steel manual wind chronograph wristwatch Model: Speedmaster Professional Reference: S 105.012-64 Date: Circa 1964 Movement: 17-jewel Cal.321 manual wind, column wheel chronograph, No.26549128 Dial: Black, luminous baton hour markers, outer 1/5th second divisions, subsidiary dials at 3, 6 and 9 for seconds, 30 minute and 12 hour recording, white pointed baton hands with luminous inserts, centre chronograph hand Case: Brushed and polished tonneau form, screw down back, inner cap, crown flanked by twin pushers, black tachymetre to bezel, curved lugs Strap/Bracelet: Green NATO strap Signed: Case, dial & movement Size: 42mm