18kt yellow gold case with a 18kt yellow gold rolex president bracelet. Fixed 18kt yellow gold set with diamonds bezel. Black mother of pearl jubilee dial with yellow gold-tone hands and diamond hour markers. Dial Type: Analog. Date display at the 3 o'clock position. Rolex Calibre 2235 automatic movement with a 48-hour power reserve. Scratch resistant sapphire crystal. Screw down crown. Solid case back. Round case shape. Case size: 31 mm. Crown clasp. Water resistant at 100 meters / 330 feet. Functions: date, hour, minute, second, chronometer. Luxury watch style. Watch label: Swiss Made. Rolex Datejust 31 Black Mother of Pearl Jubilee Diamond Dial Ladies 18kt Yellow Gold President Watch 178158BKMJDP.