Stainless steel case with a stainless steel Rolex oyster bracelet. Fixed domed 18kt white gold diamond-set bezel. Mother of pearl dial with silver-tone hands and Roman numeral hour markers. Diamond-set Roman numeral marks the 6 o'clock position. Dial Type: Analog. Date display at the 3 o'clock position. Automatic movement with a 48-hour power reserve. Scratch resistant sapphire crystal. Screw down crown. Case diameter: 31 mm. Round case shape. Oysterclasp clasp. Water resistant at 100 meters / 330 feet. Functions: date, hour, minute, second. Luxury watch style. Watch label: Swiss Made. Rolex Oyster Perpetual Datejust 31 Mother of pearl Dial Stainless Steel Rolex Oyster Automatic Ladies Watch 178344MRDO.