Hublot Spirit of Big Bang 645.QL.5117.RX

Hublot Spirit of Big Bang Tourbillon Carbon Sky Blue

This Hublot Spirit of Big Bang Tourbillon Carbon Sky Blue is a contemporary high-end watch that reflects the brand’s emphasis on modern materials and expressive mechanical design. The model belongs to the Hublot Spirit of Big Bang collection, which evolved from the early Hublot Masterpiece series introduced during the leadership of Jean‑Claude Biver. The tonneau-shaped case design later became a defining feature of the Spirit of Big Bang line. This version, limited to just 50 pieces, features a 42 mm case constructed from layered carbon composite accented with sky-blue tones, paired with titanium elements. The material offers a combination of durability and lightness while also creating distinctive organic patterns across the surface. The case maintains the architectural style associated with Hublot’s Big Bang family, including exposed screws, structured side flanks, and the brand’s integrated rubber strap system. Powering the watch is the manually wound in-house Hublot HUB6020 caliber. Operating at 3 Hz, the movement provides approximately 115 hours of power reserve and is displayed through a skeletonised dial. The openworked construction highlights the gear train and bridges, while a prominent 60-second tourbillon sits near the lower portion of the dial alongside a power-reserve indicator. With its visible mechanics and advanced materials, the Spirit of Big Bang Tourbillon Carbon Sky Blue presents a technically sophisticated interpretation of Hublot’s contemporary watchmaking approach.