Hublot .Spirit of Big Bang Series. Model: NX.RX .Inspired by motorsports, the new limited edition Spirit of Big Bang watch is launched! This timepiece incorporates all the iconic elements of the Spirit of Big Bang series, featuring a brand new barrel-shaped case. The case is made of titanium and resin materials, constructed in a sandwich structure using six H-shaped screws, conveying the concept of integrated technology. It perfectly replicates the exclusive custom HUB movement, comes with an original folding clasp, and is fitted with a custom fluororubber strap. The watch is equipped with a one-click quick-change strap system, allowing the wearer to easily and quickly replace the strap with just a gentle press!