Hublot Spirit of Big Bang 642.NX.7170.RX 42mm HUB4700 Movement Titanium Blue Skeleton Sports Watch
The Hublot Spirit of Big Bang 642.NX.7170.RX combines a bold sports-watch presence with the technical character of an exposed mechanical design. Its 42mm tonneau-shaped titanium case features broad brushed surfaces, visible screws, protective crown guards, and prominent chronograph pushers, creating a strong industrial aesthetic. A deep blue rubber strap continues the sporty color theme while giving the watch a modern and energetic wrist presence.
The blue dial is built around a highly openworked, multi-layer mechanical structure that allows gears, bridges, and transmission components to become part of the visual design. Applied baton hour markers and a defined outer minute track organize the complex layout, while broad luminous central hands remain easy to distinguish against the darker mechanical background. Circular subdials at approximately 3, 6, and 9 o’clock introduce additional depth and create a striking geometric contrast with the curved tonneau case.
Powered by the HUB4700 Movement and protected by sapphire crystal, this Spirit of Big Bang places mechanical architecture at the center of its identity. The combination of lightweight titanium, deep blue accents, exposed movement details, and an athletic rubber strap gives the watch a distinctive luxury-sports character suited to customers who appreciate contemporary design with a strong technical edge.
Key Advantages
- Openworked blue mechanical layout turns the movement into the main visual feature
- Brushed titanium surfaces create a modern, technical appearance with a refined metallic finish
- Multiple circular subdials add depth and structure to the complex skeletonized display
- Broad luminous hands maintain strong readability against the exposed mechanical background
- Visible screws, crown guards, and chronograph pushers reinforce the industrial sports-watch character
- Deep blue rubber strap gives the watch a youthful and distinctive everyday style
Technical Specifications
| Specification | Details |
|---|---|
| Brand / Series | Hublot Spirit of Big Bang |
| Model | 642.NX.7170.RX |
| Type | High-End Mechanical Sports Watch |
| Case Size | 42 mm |
| Movement | HUB4700 |
| Case Material | Titanium |
| Dial | Blue Skeleton Dial |
| Strap | Blue Rubber Strap |
| Crystal | Sapphire Crystal |
| Water Resistance | Suitable for everyday splashes only. Not suitable for swimming or showering. Please refer to our Water Resistance Care Guide. |
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