Brand New Authentic Hublot Big Bang Unico Skeleton Dial Rubber Strap Men’s Watch Model 421.CI.1170.RX. Black Ceramic case with Black Rubber strap. Deployment clasp. Fixed bezel. Dial description: Silver tone luminous hands and Arabic Numerals/Index hour markers with minute markers around the outer rim and 2 sub-dials on a Skeleton dial. Automatic-Chronograph movement. Calendar: Date at 3 o’clock. Chronograph sub-dials display: Small Seconds, 60 Minute. Powered by Hublot Calibre HUB1280 engine with 72 hours power reserve. Watch functions: Date, Power Reserve, Hour, Minute, Second, Chronograph. Screw Down crown. Scratch Resistant Sapphire crystal. Round case shape. Case size: 44mm. Transparent case back. 100 Meters – 330 Feet water resistant. 2 year WatchMaxx warranty. Also known as model: 421CI1170RX.