Brand New Authentic Hublot Big Bang Unico Chronograph Black Skeleton Dial Diamond Bezel Rubber Strap Men's Luxury Watch Model 311.PX.1180.GR.1104. Brushed 18K Rose Gold case with Black Rubber Strap . Rose Gold Deployment clasp. Fixed 18kt Rose Gold with Diamonds bezel. Swiss Automatic. Chronograph movement. Chronograph sub-dials display: 60 Second, 30 Minute. Powered by HUB1280 engine with 72 hours power reserve. Watch functions: Power Reserve, Hour, Minute, Second, Flyback Chronograph. Screw Down crown. Scratch Resistant Sapphire crystal. Round case shape. Case size: 45mm. Case thickness: 14.5mm. See-Through Caseback. 100 Meters - 330 Feet water resistant. 2 year WatchMaxx warranty. Also known as model: 311PX1180GR1104.