GENTLEMEN'S ROLEX SUBMARINER WRISTWATCH REF. 5513 CIRCA 1967, circular black dial with dot hour markers and an outer track, movable black bezel on a 40mm stainless steel case with screw down crown, screw down case back with automatic 1520 movement inside, on striped nato strap, serial number 175****, inner case back numbered 5513 and II.67, circa 1967