18kt yellow gold case with a 18kt yellow gold oyster bracelet. Bi-directional rotating time-lapse 18kt yellow gold bezel. Black mother of pearl dial with yellow gold tone Mercedes-logo, sword, and Breguet-style shape hands and white index and dots 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. Deployment clasp. Water resistant at 100 meters / 330 feet. Functions: date, hour, minute, second, chronometer. Luxury watch style. Watch label: Swiss Made. Rolex Yacht Master Black Mother of Pearl Dial Automatic 18K Yellow Gold Oysterlock Bracelet Men's Watch 16628BMSO.