Stainless steel case with a stainless steel bracelet. Uni-directional rotating stainless steel bezel with black aluminum inlay showing tachymeter markings. Silver 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 black sub-dials displaying: 60 second, 30 minute and 12 hour. Omega calibre 3330 automatic movement with a 52-hour power reserve. Scratch resistant anti-reflective sapphire crystal. Screw down crown. Solid case back. Case size: 40 mm. Round case shape. Band width: 21.6 mm. Band length: 8.5 inches. Fold over clasp with a safety release. Water resistant at 100 meters / 330 feet. Functions: chronograph, hour, minute, second, tachymeter. Casual watch style. Watch label: Swiss Made. Omega Speedmaster Racing Co-Axial White Dial Men's Watch 32630405004001.