Rolex Datejust Lady 31 Mother of Pearl Dial Stainless Steel and 18K Yellow Gold Jubilee Bracelet Automatic Watch 178343MRJ. Stainless steel case with a stainless steel Rolex jubilee bracelet with 18kt yellow gold center links. Fixed 18kt yellow gold bezel set with diamonds. Mother of pearl dial with yellow gold-tone hands and Roman numeral hour markers. Rolex calibre 2235 automatic movement with a 48-hour power reserve. Scratch resistant sapphire crystal. Screw down crown. Solid case back. Case size: 31 mm. Round case shape. Concealed crown clasp. Water resistant at 100 meters / 330 feet. Functions: date, hour, minute, second, chronometer.