Putting its movement at the heart of the design, this Hublot Spirit Of Big Bang Automatic Chronograph Watch is the perfect fusion of tradition and innovation. Its distinctive tonneau shape and curved case ensures a perfect fit on the wrist. At A Glance  Presented on a blue rubber and alligator leather strap with titanium and black-plated titanium deployment buckle clasp 45mm polished and satin-finished titanium case with 100m water resistance Satin-finished, polished and microblasted titanium bezel with 6 H-shaped titanium screws Scratch resistant sapphire crystal with anti-reflective treatment Sapphire dial with baton hour markers Three chronograph sub-dials Date window at 4:30 Powered by the HUB4700 self-winding automatic chronograph movement Up to 50 hours power reserve