A timepiece that epitomises Hublot\'s unconventional style, this Hublot Big Bang Unico Sapphire Limited Edition Automatic Chronograph Watch creates the perfect fusion between movement and style. Revealing the heart of the watch whilst being strong enough to protect it, its innovative use of sapphire transforms it from a timepiece to a work of art. At A Glance  Limited to just 500 pieces Presented on a transparent structured lined rubber strap with titanium deployant buckle clasp 42mm polished sapphire crystal case with 50m water resistance Polished sapphire crystal bezel with 6 H-shaped titanium screws Scratch resistant sapphire crystal with anti-reflective treatment Polished transparent composite resin skeleton dial with baton hour markers Two chronograph sub-dials Date window at 3 o’clock Powered by the HUB1280 UNICO Manufacture self-winding automatic chronograph flyback movement with column wheel Up to 72 hours power reserve