Model: MontrealReference: 110.503NDate: Circa 1972Movement: 17-jewel Cal.12 automatic Dial: Black, applied polished baton hour markers and luminous inserts, black outer 1/5th second divisions with red five second markers, raised outer tachymeter and pulsation scales, subsidiary dials at 3 and 9 for 30 minute and 12 hour recording, red pointed baton hands with luminous inserts, red centre chronograph handCase: Brushed and polished tonneau form, screw down back, signed crown at 9 and fluted pushers at 2 and 4Strap/Bracelet: Fitted steel link braceletBuckle/Clasp: Signed folding claspSigned: Case, dial & movementSize: 42mm Accompaniments: Heuer box