Omega Speedmaster Chronograph Automatic Men's Watch 3840.50.31

Silver-tone stainless steel case with a black leather strap. Tachymeter scale silver-tone stainless steel bezel. Black dial with silver-tone hands and index hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Chronograph - three sub-dials displaying: 60 second, 30 minute and 12 hour. Omega Calibre 3600 Automatic movement, based upon ETA 7750, containing 28 Jewels, bitting at 28800 vph, and has a power reserve of approximately 42 hours. Scratch resistant sapphire crystal. Round case shape, case size: 43.3 mm, case thickness: 16.1 mm. Band width: 20 mm. Water resistant at 100 meters / 330 feet. Functions: chronograph, rattrapante, hour, minute, small second, chronometer. Speedmaster Series. Luxury watch style. Watch label: Swiss Made. Omega Speedmaster Chronograph Automatic Men's Watch 3840.50.31.