
Ref. 645.CI.1137.NR · Skeleton
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Big Bang collection · 44 watches












4 colorways
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Owners and reviewers widely praise the Hublot Spirit of Big Bang Tourbillon 5 Day Power Reserve for its edgy, architectural design and skeletonized dial, which is noted as surprisingly legible for its complexity. The manual-wind HUB6020 movement is a highlight, offering a 5-day power reserve and a pleasing winding feel. Some reviewers find the tonneau case shape, despite being 42mm, results in a larger lug-to-lug measurement that gives it significant visual weight, though others report it wears smaller than expected. The watch is also appreciated for its customizable bezel options and vibrant ceramic colorways, with some owners viewing it as an amazing option and a welcome addition for variety. Overall, owners and reviewers rate the Hublot Spirit of Big Bang Tourbillon 5 Day Power Reserve highly for its unique design and impressive movement at its price point.
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