Designed, developed and produced entirely by Hublot's micro-mechanics, engineers and watchmakers, this proprietary movement is a traditional tourbillon with a cage measuring 13.6 mm in diameter – a minute tourbillon that performs one revolution every minute – and whose construction featuring a barrette on the dial side ensures its stability. It has been specially fitted with a practical power reserve indicator, visible on the dial side, and has also been remodelled with new bridge and main plate architecture.
The Big Bang Tourbillon 5-Day Power Reserve Indicator is 45 mm in diameter. The watch is issued in two limited series of 99 numbered pieces in titanium (ref.405.NX.0137.LR) and 99 numbered pieces in King Gold (ref.405.OX.0138.LR).
In keeping with the theme of interchangeability and adaptability, the piece features a unique bracelet attachment system which allows the bracelet to be switched quickly and easily.