The New Face Of Carbon: Hublot’s Tourbillon-Powered Square Bang

Hublot expands its Square Bang collection with a bold new release that introduces both technical evolution and a fresh aesthetic direction. The Hublot Square Bang Tourbillon 4-Day Power Reserve debuts in 3D carbon, marking the first time this lightweight and visually dynamic material is used in the Square Bang family. This model also stands out as the first time-only Square Bang, powered by a movement specifically engineered to suit the square case architecture.

A Square Watch Built Around a Square Movement

The new timepiece is housed in a 42 mm x 13.20 mm case made from 3D carbon with a titanium caseback. Unlike traditional carbon materials with twill patterns or forged textures, the 3D carbon here creates a layered, volumetric effect that emphasizes the geometric lines of the case.

Inside beats the MHUB602 — a manually wound skeleton tourbillon movement developed by Hublot with the square form factor at its core. The movement layout is deliberately structured: the barrel at 12 o’clock, tourbillon at 6 o’clock, crown and winding mechanism at 3 o’clock, and the power reserve indicator at 9 o’clock. This symmetrical and quadrilateral configuration aligns with the case shape, enhancing visual harmony across the dial.

Mechanical Simplicity, Visual Complexity

While the watch forgoes complications like a chronograph, the integration of a flying tourbillon at 6 o’clock injects significant horological interest. The bridges are black PVD-coated and skeletonized, not only revealing the movement’s inner workings but also reinforcing the architectural feel. The design offers a high degree of transparency, covered by anti-reflective sapphire crystal front and back.

Despite its modern, technical aesthetic, the MHUB602 provides traditional performance: a 4-day (96-hour) power reserve, delivered via a large single barrel. The indicator at 9 o’clock allows the wearer to track remaining energy with ease.

Comfort and Price

Complementing the case is an integrated textured black rubber strap, paired with a titanium and ceramic deployant buckle. The strap can be easily swapped using Hublot’s One Click system, offering versatility without compromising on the watch’s streamlined profile. The new Hublot Square Bang Tourbillon is now available in the brand’s official boutiques and authorized retailers for CHF 95,000

Final Thoughts

This new Square Bang model signals a deliberate shift in the collection’s trajectory — away from chronograph functionality and into a more sculptural, mechanically refined territory. With its square-specific movement architecture, high-performance tourbillon, and ultra-modern materials, the Square Bang Tourbillon 4-Day Power Reserve underlines Hublot’s commitment to design integration and innovation.

More details at www.hublot.com.

General Specifications:

Brand: Hublot

Model: Square Bang Tourbillon 4-Day Power Reserve

Reference: 805.QD.0170.RX

Dial: Openworked

Case Material: 3D carbon fibre

Case Dimensions: 42 mm diameter, 13.20 mm thickness

Crystal: Sapphire Glass

Case Back: Sapphire Glass

Water Resistance: 30 Meters

Strap: Black textured rubber strap with a ceramic and titanium deployant buckle

Caliber: MHUB6023

Functions: Hours, minutes, power reserve, tourbillon

Winding: Hand-wound

Frequency: 3 Hz (21,600 Vph)

Jewels: 25

Power Reserve: 96 Hours

Price: CHF 95,000

Availability: Now