18k yellow gold case with a yellow gold-tone 18kt yellow gold rolex oyster bracelet. Unidirectional rotating - 18k yellow gold 18kt yellow gold bezel. Black dial with yellow gold-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 dial 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 300 meters / 1000 feet. Functions: date, hour, minute, second, chronometer. Luxury watch style. Watch label: Swiss Made. Rolex Submariner Black Dial 18K Yellow Gold Oyster Bracelet Automatic Mens Watch 116618BKSO.