Hublot presents an acclaimed interpretation of the Big Bang Spirit Skeleton series, a transparent chronograph design that highlights mechanical architecture and modern watchmaking aesthetics.
This 42mm model features a fully transparent visual concept, faithfully reproducing the intricate skeleton dial layout that exposes the dynamic structure of the movement. The design emphasizes depth, layering, and mechanical transparency.
The case construction uses high-grade acrylic-style crystal material with strong durability and scratch resistance, paired with a sapphire crystal glass for enhanced clarity and protection against daily wear.
It is powered by an upgraded 7750-based chronograph movement, re-engineered to HUB4700 specifications, ensuring stable chronograph performance and functional consistency with the original architecture.
The design philosophy focuses on precision replication and visual transparency, delivering a fully exposed mechanical experience while maintaining structural integrity and detail accuracy.
A bonus interchangeable rubber strap in an alternate color is included, enhancing versatility and allowing multiple styling options for daily wear.




