18kt yellow gold case with a 18kt yellow gold bracelet. Fixed 18kt yellow gold bezel. Silver-tone dial with luminous yellow gold-tone hands and index hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Date display at the 6 o'clock position. Day of the week display centered on the 12 o'clock position. Omega calibre 8612 automatic movement with a 55-hour power reserve. Scratch resistant sapphire crystal. Pull / push crown. Transparent case back. Round case shape. Case size: 38 mm. Band width: 25 mm. Fold over clasp. Water resistant at 100 meters / 330 feet. Functions: date, day, hour, minute, second, co-axial escapement, chronometer. Luxury watch style. Watch label: Swiss Made. Omega Constellation Automatic Chronometer Silver Dial Mens Watch 123.50.38.22.02.002.