Hublot
Spirit of Big Bang Titanium 42
641.NX.0173.LR
The tonneau-cased skeleton chronograph that reframes Big Bang DNA.
An estimate from current market data — not an offer. Your actual value depends on condition, completeness, and authentication.
Get an instant offerFree insured shipping. Paid within 48 hours of inspection.
Overview
The Hublot Spirit of Big Bang Titanium 42 (ref. 641.NX.0173.LR) translates the brand's signature oversized aesthetic into a refined tonneau silhouette. At 42 mm in titanium, it strikes a balance between the boldness of the Big Bang family and a more wearable, dressy proportion. The skeletonized black dial and in-house Calibre HUB4700 chronograph movement make the architecture of the watch the centrepiece of the design.
History
Hublot introduced the Spirit of Big Bang line in 2014 as a deliberate departure from the round case that had defined the original Big Bang since 2005. The tonneau form drew on mid-twentieth-century watchmaking tradition while retaining Hublot's layered, multi-material construction philosophy. The 42 mm titanium variant has remained a cornerstone of the Spirit of Big Bang collection, appealing to collectors who favour a lighter, more understated expression of the line. Its longevity in the catalogue reflects the enduring appeal of the tonneau shape within Hublot's broader portfolio.
Notable points
- Tonneau-shaped 42 mm titanium case offers a lighter alternative to steel or ceramic variants within the Spirit of Big Bang family.
- Calibre HUB4700 is an in-house chronograph movement, visible in full through the skeletonized dial and exhibition caseback.
- The skeletonized black dial removes all superfluous material, allowing the movement's bridges and wheels to serve as the primary visual element.
- Introduced in 2014, the Spirit of Big Bang line marked Hublot's first systematic exploration of the tonneau case format at scale.
- Titanium construction keeps the 42 mm case notably light on the wrist, a practical advantage for a skeletonized chronograph of this size.
Specifications
Related watches
