Stainless steel case with a black nylon fabric strap. Fixed stainless steel with a black anodized aluminum ring showing tachymeter markings bezel. Black dial with luminous 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 hours. Omega Calibre 3861 Automatic movement, based upon Lemania 1873, containing 26 Jewels, bitting at 21600 vph, and has a power reserve of approximately 50 hours. Scratch resistant hesalite crystal. Pull / push crown. Solid case back. Round case shape, case size: 42 mm, case thickness: 13.58 mm. Band width: 20 mm. Push button deployant clasp. Water resistant at 50 meters / 167 feet. Functions: chronograph, hour, minute, second. Speedmaster Series. Luxury watch style. Watch label: Swiss Made. Pre-owned Omega Speedmaster Chronograph Hand Wind Black Dial Mens Watch 310.32.42.50.01.001.