Brand New Authentic Hublot Spirit of Big Bang Chronograph Skeleton Dial Rubber Strap Men's Watch Model 642.NX.0170.RX. Polished Titanium case with Black Structured Lined Rubber strap. Titanium Deployment clasp. Fixed with 6 H-Shaped Titanium Screws bezel. Dial description: Silver tone Hands and Index Hour Markers with Minute Markers around the outer rim and the Date displayed between the 4 and 5 o'clock position with 3 Sub dials on Skeleton dial. Automatic movement. Calendar: Date between 4 and 5 o'clock position. Chronograph sub-dials display: Small Seconds, 30 Minute, 12 Hours. Powered by Hublot Caliber HUB4700 engine with 50 hours power reserve. Watch functions: Date, Power Reserve, Hour, Minute, Second. Scratch Resistant Sapphire crystal. Tonneau case shape. Case size: 42mm. 100 Meters - 330 Feet water resistant. 2 year WatchMaxx warranty. Also known as model: 642NX0170RX.