ROLEX OYSTER PERPETUAL SUBMARINER COMEX Steel diver's watch. Black dial signed with the arms of the COMEX Maritime Expertise Company with luminescent indexes, bi-directional bezel for calculating decompression times. Signed automatic movement. Stainless steel bracelet, oyster links with adjustable steel folding clasp, signed. Deep water watch equipped with a helium valve for decompression of divers at 9 o'clock. Steel case back with COMEX 748 number. Ref. box 5514 / Ref. box bottom 5513. Around 1972. Diameter: 39.5 mm. Dial, hands, crown and replacement bezel insert. It comes with a Rolex case and an international service warranty.