18kt white gold case with a 18kt white gold bracelet. Fixed 18kt white gold diamond set bezel. Black dial with white hands and diamond hour markers. Dial Type: Analog. Date display at the 3 o'clock position. Omega Calibre 8521 automatic movement with a 50-hour power reserve. Scratch resistant sapphire crystal. Round case shape. Case size: 31 mm. Band width: 19 mm. Water resistant at 100 meters / 330 feet. Functions: date, hour, minute, second, co-axial escapement, chronometer. Luxury watch style. Watch label: Swiss Made. Omega Constellation Automatic Chronometer Diamond Black Dial Ladies Watch 123.55.31.20.51.001.