Speedmaster '57 Chronograph

Stainless steel case with a stainless steel bracelet with 18kt rose gold center links. Fixed 18kt rose gold bezel showing tachymeter markings. Black dial with luminous rose gold 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: 15.5 mm. Band width: 19 mm. Band length: 9 inches. Fold over clasp with a push button release. 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 20 42 51 01 002, 331-20-42-51-01-002, 331/20/42/51/01/002, 33120425101002. Omega Speedmaster Chronograph Automatic Chronometer Black Dial Mens Watch 331.20.42.51.01.002.