Rolex Datejust Lady 31 Mother of Pearl Dial Stainless Steel Rolex Jubilee Automatic Watch 178384MRJ. Stainless steel case with a stainless steel Rolex jubilee bracelet. Fixed - 18k white gold diamond-set bezel. Mother of pearl dial with silver-tone hands and Roman numeral hour markers. Automatic movement. Scratch resistant sapphire crystal. Screw down crown. Case diameter: 31 mm. Round case shape. Concealed crown clasp. Water resistant at 100 meters / 330 feet. Functions: date, hour, minute, second.