Stainless steel case with a stainless steel bracelet. Fixed stainless steel bezel with black aluminum top ring showing tachymeter markings. Black dial with luminous silver-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. Chronograph - three sub-dials displaying: 60 second, 30 minute and 12 hour. Omega Calibre 3330 automatic movement with a 52-hour power reserve. Scratch resistant sapphire crystal. Pull / push crown. Solid case back. Case size: 40 mm. Case thickness: 15 mm. Round case shape. Band width: 19 mm. Band length: 8.5 inches. Deployment clasp with a push button release. Water resistant at 100 meters / 330 feet. Functions: chronograph, date, hour, minute, second, chronometer, tachymeter. Luxury watch style. Watch label: Swiss Made. Item Variations: 326 30 40 50 01 001, 326-30-40-50-01-001, 326/30/40/50/01/001, 32630405001001. Omega Speedmaster Racing Automatic Chronograph Mens Watch 3184.108.40.206.01.001.