The case of this new Big Bang Integrated Tourbillon Full Sapphire has been reconstructed in its entirety to house the Automatic Tourbillon movement. The goal: to remove almost all of the visible screws, overhaul the general geometry of the case to integrate it with the sapphire bracelet, develop a new case profile to house the sapphire bracelet, and rework the bridges and main plates to give them the illusion of being suspended in space. Hublot also developed inserts and attachments which were reduced to their simplest expression, to allow light through every component. The case is thus composed of no fewer than 37 components, five of which are made solely from sapphire.
The bracelet was also a complex challenge: it alone comprises 165 components, 22 of which are made from sapphire. Each component had its own industrial process. A third of these were specially designed to provide unique harmony with the transparency of the case, and to offer fluidity and flexibility. Of particular note are the titanium inserts Hublot developed, ultra-reduced to ensure they do not protrude either side of each bracelet link – a first for the manufacture, and probably for watchmaking.
In terms of the movement, the HUB6035 automatic manufacture calibre, entirely designed and manufactured in-house, is the beating heart of the piece. It demonstrates a perfect balance between the micro-rotor at 12 o'clock and the tourbillon at 6 o'clock, and also with its three transparent sapphire bridges, exclusive to this new Big Bang. The components appear to be literally suspended in space.