Rolex. A stainless steel automatic calendar bracelet watch with associated dial Single Red Submariner, Ref 1680, Circa 1972Rolex. A stainless steel automatic calendar bracelet watch with associated dialModel: Single Red SubmarinerReference: 1680Date: Circa 1972Movement: 26-jewel Cal.1570 automatic, adjusted to 5 positions, No.D708685Dial: Black, red Submariner, luminous dot hour markers, baton quarters, white outer minute divisions, magnified date aperture at 3, polished Mercedes hands with luminous inserts, polished centre secondsCase: Brushed and polished tonneau form, screw down back, shouldered screw down crown, bi-directional bezel with black calibrated bezel, No.2951417Strap/Bracelet: Brushed 93150 Oyster linkBuckle/Clasp: Signed folding clasp, stamped S T4Signed: Case, dial & movementSize: 40mm Accompaniments: Rolex box (lacking cushion), outer cardNone