Omega Constellation Automatic Chronometer Black Dial Men's Watch 131.63.41.21.01.001

18kt yellow gold case with a black alligator/crocodile leather strap. Fixed black bezel. Black dial with gold-tone hands and index hour markers. Minute markers around the outer rim. Dial Type: Analog. Date display at the 6 o'clock position. Omega Calibre 8901 Automatic movement, based upon Omega 8900, containing 39 Jewels, bitting at 25200 vph, and has a power reserve of approximately 60 hours. Anti-reflective scratch resistant sapphire crystal. Pull / push crown. Transparent case back. Round case shape, case size: 41 mm. Push button folding clasp. Water resistant at 50 meters. Functions: date, hour, minute, second, co-axial escapement, chronometer. Constellation Automatic Series. Luxury watch style. Watch label: Swiss Made. Omega Constellation Automatic Chronometer Black Dial Men's Watch 131.63.41.21.01.001.