Silver-tone stainless steel case with a brown leather strap. Fixed tachymeter scale silver-tone stainless steel bezel. Blue dial with silver-tone alpha-style shape 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 - two sub-dials displaying: 60 seconds and 12 hours. Omega Calibre 9300 Automatic movement, containing 54 Jewels, composed of 337 parts, bitting at 28800 vph, and has a power reserve of approximately 60 hours. Scratch resistant sapphire crystal. Pull / push crown. Skeleton case back. Round case shape, case size: 41.5 mm, case thickness: 16.5 mm. Band width: 21.6 mm, band length: 8.5 inches. Deployment clasp. Water resistant at 100 meters / 330 feet. Functions: chronograph, date, hour, minute, second, chronometer, tachymeter. Additional Info: co-axial escapement. Dress watch style. Watch label: Swiss Made. Item Variations: 331 12 42 51 03 001, 331-12-42-51-03-001, 331/12/42/51/03/001, 33112425103001. Omega Speedmaster Automatic Blue Dial Mens Watch 33112425103001.