Stainless steel case with a stainless steel bracelet. Fixed stainless steel bezel. Black dial with luminous hands and index hour markers. Minute Markers. Tachymeter scale around the outer rim. Luminescent hands and markers. Date display at the 3 o'clock position. Chronograph - three sub-dials displaying: 60 seconds, 30 minutes and 12 hours. Automatic movement with a 42-hour power reserve. Scratch resistant sapphire crystal. Quick lock crown. Screw down case back. Case diameter: 42.7 mm. Case thickness: 15.6 mm. Deployment clasp. Water resistant at 100 meters / 330 feet. Functions: centre hands for hours, minutes and chronograph 1/4 seconds, 3 subsidiary dials for continuous seconds, 30 minutes and 12 hours counter, date window, date corrector, fine timing device and stop-second. Oris BC4 Chronograph Automatic Men's Watch 674-7616-4154MB.