Hublot Spirit of Big Bang

About this reference

The Hublot Spirit of Big Bang Reference 601.HX.0173.LR was introduced around 2014 and remains a staple of the brand’s tonneau-shaped collection. Collectors target this reference for its 45mm modular sandwich case constructed from micro-blasted and polished white ceramic, paired with a skeletonized dial. It is powered by the HUB4700 caliber, an automatic high-beat chronograph movement based on the Zenith El Primero, oscillating at 36,000 vibrations per hour with a 50-hour power reserve. This specific model is noted for its aesthetic departure from the standard Big Bang, offering a more ergonomic profile while maintaining the signature H-shaped titanium screws. On the secondary market, this reference typically trades between $14,000 and $19,000 depending on condition and completeness. A notable production variant includes the "All White" boutique edition, which features a white rubber and alligator strap to complement the monochromatic ceramic architecture.