Stainless steel case with a brown (calfskin) leather strap. Fixed stainless steel bezel showing tachymeter markings. Silver dial with luminous gold-tone alpha-style 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 second and 12 hour. 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. Screw down crown. Transparent 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. Speedmaster Series. Luxury watch style. Watch label: Swiss Made. Item Variations: 331 12 42 51 02 002, 331-12-42-51-02-002, 331/12/42/51/02/002, 33112425102002. Omega Speedmaster Chronograph Automatic Mens Watch 331.12.42.51.02.002.
