Stainless steel and 18k yellow gold case with a two-tone (silver-tone and yellow gold-tone) stainless steel and 18k yellow gold rolex jubilee bracelet. Fixed - fluted 18k yellow gold bezel. Black mother of pearl dial with yellow gold-tone hands and diamonds 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. Concealed fold over crown clasp. Water resistant at 100 meters / 330 feet. Functions: date, hour, minute, second, chronometer. Luxury watch style. Watch label: Swiss Made. Rolex Datejust Lady 31 Black Mother Of Pearl Dial Stainless Steel and 18K Yellow Gold Jubilee Bracelet Automatic Watch 178273BKMDJ.