Stainless steel case with a stainless steel bracelet. Fixed stainless steel bezel. Black dial with silver-tone hands and Roman numeral hour markers. Minute markers around an inner ring. Dial Type: Analog. Date display at the 4 o'clock position. Chronograph - two sub-dials displaying: 60 minute and 12 hour. Omega calibre 9300 automatic movement with a 60-hour power reserve. Scratch resistant sapphire crystal. Pull / push crown. Transparent case back. Round case shape. Case size: 42 mm. Band width: 21 mm. Deployment clasp with a push button release. Water resistant at 100 meters / 330 feet. Functions: chronograph, column wheel, date, hour, minute, second, co-axial escapement, chronometer. Luxury watch style. Watch label: Swiss Made. Item Variations: 431 10 42 51 01 001, 431-10-42-51-01-001, 431/10/42/51/01/001, 43110425101001. Omega De Ville Co-Axial Chronograph Automatic Chronometer Black Dial Mens Watch 431.10.42.51.01.001.