Brand New Authentic Omega Speedmaster Professional Moonwatch Master Chronometer 42mm Men's Watch Model 310.32.42.50.01.001. Stainless Steel case with Black Nylon strap. Deployment with Push Button clasp. Fixed bezel. Dial description - Silver tone hands and Index hour markers with minute markers around the outer rim and 3 sub-dials on a Black dial. Automatic - Chronometer Chronograph movement. Chronograph sub-dials display - 60 Second, 30 Minute, 12 Hours. Powered by Omega Calibre 3861 engine with 50 hours power reserve. Watch functions - Power Reserve, Hour, Minute, Second, Chronograph. Hesalite crystal. Round case shape. Case size - 42mm. Case thickness - 13.58mm. Solid case back. 50 Meters - 165 Feet water resistant. 5 year WatchMaxx warranty. Also known as model - 31032425001001.