This is a brand new authentic Hublot Big Bang Integral model 451.nx.1170.nx. Features include titanium case and bracelet, skeleton dial design, fixed bezel, automatic-chronograph movement powered by Calibre HUB1280 engine with 72 hours power reserve, date function at the 3 o'clock position, hour, minute and second hand indicators, screw down crown for chronograph functions, scratch resistant sapphire crystal glass, case size measuring 42mm in diameter and thickness of 14.5mm, transparent case back allowing visibility to the movement, water resistance up to 100 meters (330 feet), included with a two year Hublot WatchMaxx warranty.