Since 2005, Hublot has been committed alongside Hublot Big Bang Tourbillon Only Watch to help research to overcome Duchenne muscular dystrophy one day and protect future generations. This year, the brand is donating a unique Big Bang Tourbillon Only Watch to support the charity auction.

Its translucent case cut from sapphire and its orange bezel display the expertise of Hublot and the colour code for Hublot Big Bang Tourbillon Only Watch 2021.

The dial, which is also made from sapphire reveals the mechanics of the new self-winding manufacture tourbillon movement (calibre MHUB6035) launched in January. Still in the same tones: A raised section, Superluminova on the hour and minute hands, and the numerals are also orange coloured.
To create its bezel in orange sapphire, Hublot Big Bang Tourbillon Only Watch once again added a world first to its list of records: dyed sapphire, in a powerful orange, which is vibrant and positive, resulting from the fusion of titanium and chrome. To make the most of this unique piece with its total transparency, Hublot has decided to reveal everything and hide nothing, right down to the chassis itself, which is entirely cut in sapphire.

Whereas standard tourbillon movements are manual winding, the MHUB6035 calibre, which was entirely developed and designed by the Hublot Manufacture, is self-winding. Its sunray-brushed and sandblasted angled micro-rotor in 22-ct white gold is visible on the dial side, creating a spectacular and sophisticated impression.
Playing with the ultimate transparency of the case and the strap, right down to the movement, Hublot has also included sapphire in the calibre itself by equipping it for the first time with three sapphire bridges—the barrel bridge, automatic watch bridge and tourbillon bar.

The watch is engraved with “Pièce Unique” and the Hublot Big Bang Tourbillon Only Watch logo on the sapphire back cover and comes with two interchangeable One Click structured lined rubber straps, one of which is transparent and the other is orange.