Omega. A stainless steel manual wind chronograph wristwatch
Model: Speedmaster ProfessionalReference: 145.0222/345.0222Date: Circa 1976Movement: 18-jewel rose gilt Cal.861 manual wind, No.39921374Dial: 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, inner cap, signed crown flanked by twin pushers, tachymetre to bezel with black insertStrap/Bracelet: Green leatherBuckle/Clasp: Steel buckleSigned: Case, dial & movement Size: 42mm