Hublot HUBLOT soul BIG BANG series. Model 642.NX.0170.RX Inspired by racing, the new Sirit of Big Bang limited edition watch is launched! The watch combines all the iconic elements of the Sirit of Big Bang series with a new barrel-shaped case. The case is made of titanium and resin materials, and uses six H-shaped screws to build a "sandwich" structure, conveying the concept of "fusion technology" , a perfect replica of the exclusive customized HUB4700 movement, original folding buckle, customized fluororubber strap, the watch is equipped with a "one-button" quick strap replacement system, the wearer can easily and quickly change the strap with just one click. Replace the strap! ! ! ,