Stainless steel case with a black rubber and gummy alligator strap. Fixed stainless steel bezel. Skeleton dial with luminous hands and index hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Date display appears between the 4 and 5 o'clock position. Chronograph - three sub-dials displaying: 60 second, 30 minute and 12 hour. Automatic movement with a 42-hour power reserve. Scratch resistant sapphire crystal. Pull / push crown. Skeleton case back. Case diameter: 44 mm. Round case shape. Band length: 8.5 inches. Push button fold over clasp. Water resistant at 100 meters/ 330 feet. Functions: hours, minutes, seconds, calendar, chronograph. Sport watch style. Watch label: Swiss made. Hublot Big Bang Aero Bang Chronograph Mens Watch 311-SX-1170-GR.