展开Silver-tone stainless steel case and bracelet. Fixed tachymeter scale black 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 3220 Automatic movement, based upon ETA 2892-A2, containing 47 Jewels, bitting at 28800 vph, and has a power reserve of approximately 40 hours. Scratch resistant sapphire crystal. Pull / push crown. Solid case back. Round case shape, case size: 39 mm. Band length: 7.75 inches. Deployment with push button release clasp. Water resistant at 100 meters / 330 feet. Functions: chronograph, hour, minute, small second. Speedmaster Series. Luxury watch style. Watch label: Swiss Made. Item Variations: 3539.50, 3539.50.00, 3539-50, 3539-50-00, 3539/50, 353950, 3539. Pre-owned Omega Speedmaster Chronograph Automatic Black Dial Mens Watch 3539.5.