Hublot 642-NX-7170-RX Big Bang 42 mm Watch

The Art of Fusion: Redefining the Chronograph

Hublot has always lived by the philosophy of the “Art of Fusion,” and the Big Bang 642.NX.7170.RX is a masterful execution of this vision. This isn’t merely a tool for telling time; it is a statement of engineering prowess and avant-garde design. The 42mm case strikes the perfect balance between wrist presence and wearability, making it suitable for both the boardroom and the weekend escape. It represents the Swiss brand’s commitment to taking the traditional chronograph and injecting it with a distinctly modern, urban energy.

Material Mastery: Titanium and Texture

At the heart of this timepiece lies a robust yet surprisingly lightweight titanium case. Unlike standard steel, titanium offers superior corrosion resistance and a matte, technical finish that catches the light with subtle sophistication. The brushed and polished surfaces work in harmony, drawing the eye across the complex architecture of the case. This model is further distinguished by the signature Hublot “sandwich” construction, where the composite resin bezel—secured with iconic H-shaped titanium screws—contrasts beautifully against the cold metal, creating a multi-dimensional visual experience.

The Mechanical Heartbeat: A View from Within

What truly sets the 642.NX.7170.RX apart is its captivating skeletonized dial. Removing the traditional dial plate, Hublot invites you to peer directly into the mechanical soul of the watch. You can witness the intricate ballet of the automatic movement’s gears, escapement, and oscillating weight. The applied indexes and skeleton hands are coated with luminescent material, ensuring legibility in low light without disrupting the transparent, industrial aesthetic. This is horology laid bare, a tribute to the complexity hidden beneath the surface of most luxury watches.

Designed for Performance and Versatility

This Big Bang is engineered for life in motion. The 42mm case is water-resistant to 100 meters (10 ATM), offering peace of mind during spontaneous swims or unexpected downpours. It is anchored to the wrist by the iconic Hublot black rubber strap with a titanium deployant buckle clasp. The rubber is not merely functional; it is structured with a relief pattern that provides exceptional comfort and breathability. For those who enjoy variety, Hublot’s “One-Click” system allows for effortless swapping to different straps, transforming the watch’s character in seconds.