The Original Sea-Dweller. Silver-tone stainless steel case with a silver-tone stainless steel rolex oyster bracelet. Uni-directional rotating black stainless steel bezel. Black dial with luminous silver-tone Mercedes-logo, sword, and Breguet-style shape hands and dot hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Date display at the 3 o'clock position. Rolex Calibre 3135 automatic movement with a 50-hour power reserve. Scratch resistant sapphire crystal. Screw down crown. Solid case back. Round case shape. Case size: 40 mm. Oysterlock clasp. Water resistant at 1220 meters / 4000 feet. Functions: date, hour, minute, second, chronometer. OSCS Certified Swiss Made.