An authentic Hublot Big Bang Unico luxury watch model 421.CM.1130.RX. Features a polished black ceramic case and strap, titanium deployment clasp with push button. Includes an 18K Magic Gold fixed bezel. Skeleton dial displays gold tone luminous hands and Arabic/Stick hour markers around the outer rim; two sub-dials for small seconds, minutes, and date at 3 o'clock position which is also where the date function resides. Powered by Hublot Calibre HUB1280 UNICO movement with automatic winding and a 72-hour power reserve. Equipped with flyback chronograph functionality. Scratch resistant sapphire crystal lens. Unique case shape design available. Transparent screw-down case back allowing visibility of mechanics inside. Rated for 330 feet / 100 meters water resistance, offers date function display, comes with Hublot WatchMaxx warranty valid for two years.