The sharp-styled edges and layered design make the iconic Porthole design look even sportier on this Hublot Big Bang Unico Automatic Chronograph Watch. Boasting all the power of the Unico Manufacture movement but in a more compact size, this sleek and stylish timepiece doesn’t compromise on performance. At A Glance  Presented on a black lined rubber strap with titanium deployment buckle clasp 42mm polished and satin-finished titanium case with 100m water resistance Satin-finished and polished titanium bezel with 6 H-shaped titanium screws Scratch resistant sapphire crystal with anti-reflective treatment Matte black skeleton dial with Arabic numeral and 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