Reference 5513 Submariner | A stainless steel automatic wristwatch with bracelet, Circa 1973 Reference 5513 Submariner A stainless steel automatic wristwatch with bracelet, Circa 1973 Dial: black Caliber: cal. 1520 automatic, 26 jewels Case: stainless steel, screw down case back Case number: 3’184’866 Closure: stainless steel Rolex Oyster bracelet with folding clasp Size: 40 mm diameter, bracelet circumference approximately 175 mm Signed: case, dial and movement Box: no Papers: no