The stunning Rolex GMT Master II in Yellow Gold. 18k yellow gold case with a yellow gold-tone 18kt yellow gold rolex oyster bracelet. Bi-directional rotating - 18k yellow gold black ceramic bezel. Black dial with yellow gold-tone hands and luminous 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 3186 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, case thickness: 12 mm. Oysterlock clasp. Water resistant at 100 meters / 330 feet. Functions: GMT, second time zone, date, hour, minute, second, chronometer. Rolex GMT Master II Black Dial 18K Yellow Gold Oyster Bracelet Automatic Mens Watch 116718BKSO. COSC Swiss Made Certification.