The new Hublot Square Bang Tourbillon marks several firsts for the brand. It’s the maison’s first timepiece to combine a four-day power reserve with two central hands and a case crafted in 3D carbon housing exclusively square bridges. It is also the first in the brand’s history to be regulated by a tourbillon. In essence, this watch has been entirely reimagined—from the inside out.
THE BIG BANG TRILOGY
With its launch, the Square Bang completes Hublot’s trilogy of “Big Bang”-inspired models: the original round Big Bang, now celebrating its 20th anniversary; the tonneau-shaped Spirit of Big Bang; and the boldly geometric Square Bang.
The equal side dimensions of the Hublot Square Bang Tourbillon with lattice-pattern carbon-fibre case.
ANGULAR, FUNCTIONAL, REFINED
What truly sets Hublot apart is the strength of its in-house manufacture, which enables every element of a watch to be reimagined from the ground up. Housed in a 42mm bespoke carbon composite case – woven with vertical and horizontal striations – is the MHUB6023 manual-winding movement, developed specifically for the Square Bang Tourbillon. The result is a Mondrian-esque harmony of form and function: a movement where every bridge is square or rectangular, anchoring the 174 components of the calibre. Matte and satin finishes interplay across surfaces, enhancing the sense of depth and architectural refinement.
The fully skeletonized construction lends the watch an almost weightless presence, with its angular geometry and straight lines appearing suspended in space. This remarkable transparency reveals an intricate structure where technical mastery meets aesthetic purity – delivering a creation that is not only groundbreaking for Hublot, but also unique in contemporary watchmaking.
A fusion of design and technique. True to its name, the Hublot Square Bang Tourbillon component parts, case and movement, all share the same quadrangle aesthetic theme.
“With the Square Bang Tourbillon 4-Day Power Reserve, we wanted to take the concept to its logical extreme – designing a movement whose architecture is entirely composed of right angles,” says Julien Tornare, CEO of Hublot. “The bridges are straight, clean, and sharp, as if to protect a mechanism that beats to the rhythm of a perfect circle. The fusion is complete.”
To reinforce the square geometry, key components of the movement are arranged along the four sides of the case: winding on the right beside the crown, the four-day power reserve indicator on the left, a large mainspring barrel at the top, and the tourbillon escapement at the bottom. The latter features a silicon balance spring, delivering resistance to magnetic fields and temperature fluctuations while ensuring precision and stability.
That geometric clarity extends to the strap, crafted in textured rubber with a square motif that echoes the case design. It’s a seamless continuation of form and function – and quite possibly the coolest watch to be seen wearing this summer. RRP: £91,000.
Author: Andrew Hildreth
If you’d like to explore the world of non-round watches, you may like to read our history of asymmetric watches, learn more about square watches, and enjoy the originality of the Hublot Arsham Droplet.
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