Omega. A stainless steel manual wind chronograph bracelet watch Speedmaster Professional, Ref 105.012-66 , Circa 1966

Omega. A stainless steel manual wind chronograph bracelet watch
Model: Speedmaster ProfessionalReference: 105.012-66 Date: Circa 1966Movement: 17-jewel Cal.321 manual wind, No.24958935Dial: Black, luminous baton hour markers, white 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 handCase: Brushed and polished tonneau form, screw down back stamped CB for La Centrale Boites, twisted lugs, shouldered crown flanked by twin chronograph pushers, black tachymetre insert to bezelStrap/Bracelet: Fitted 1039 Omega linkBuckle/Clasp: Signed folding claspSigned: Case, dial & movementSize: 40mm