SQUARE BANG TOURBILLON 4-DAY POWER RESERVE: THE SQUARE BANG ADDS A WHOLE NEW DIMENSION TO THE TOURBILLON

Nyon, Switzerland, 22^nd of May 2025 - Why are watches round? Because their most basic component – the wheel – is round. It's as simple as that. Perhaps too simple for Hublot, though, who was certainly not going to build the future of Haute Horlogerie on conventions from the past.

In 2022, the Nyon-based Manufacture unveiled a brand-new collection, its third, andlatest addition to the Big Bang family, made up of different shaped watches: the round Big Bang, the tonneau-shaped Spirit of Big Bang, and the Square Bang. Square. Powerful. Radical. The essence of the Big Bang encapsulated in a square case with each side measuring 42mm, now available in some twenty variations, all Manufacture chronograph pieces. Until now.

The Square Bang Tourbillon 4-Day Power Reserve is the first Square Bang with two central hands. It also features many other firsts. The first to offer a 3D carbon case. The first to be regulated by a Tourbillon. The first to contain only square bridges.

To achieve this result, Hublot made full use of the capacities of its in-house Manufacture. The MHUB6023 manual movement was especially developed for the Square Bang Tourbillon. The timepiece is the perfect fusion of form and function, technique and design. Each of the bridges are square or rectangular, bearing the 174 components essential to this calibre. Every surface also features a subtle combination of matte and satin finishes to beautifully accentuate the different depths at which the various bridges are set.

"Until now, advances in square watches have been rather timid, usually confined to the case alone. With the Square Bang Tourbillon 4-Day Power Reserve, we wanted to take the exercise to its logical conclusion, by designing a movement whose architecture is also fully right-angled. The bridges are straight, clean and sharp, as if to protect a movement that always beats to the rhythm of a perfect circle, that of the Tourbillon, barrel and power reserve. The fusion is complete," explains Julien Tornare, CEO of Hublot.

UNCOMPROMISINGLY SQUARE

To reinforce the square geometry, the main components of the timepiece are distributed over the four sides of the square: winding on the right, power reserve on the left, large barrel on top and tourbillon below. The balance is perfect, and nothing escapes the discerning eye since the entire movement is skeletonised. Powerful yet ethereal, the openwork composition leaves its angles and straight lines suspended in mid-air. The complex architecture is ingenious, with technical and aesthetic meetings in perfect fusion to create a mechanism whose lightness is equalled only by its uniqueness, as the first watch composition of its kind developed by Hublot.

To celebrate the arrival of the first Tourbillon in the Square Bang family, Hublot has designed a bespoke case for it, made entirely from carbon and measuring 42mm. The first in the collection, its 3D finish is created using a carbon composite, woven into vertical and horizontal lines. The structure is built around a square motif, in keeping with the spirit of the Square Bang. The same inspiration is found on the rubber strap, which is also textured with square motifs, ensuring continuity between the different elements of the watch exterior and, above all, guaranteeing the perfect harmony of the piece.

The new Square Bang Tourbillon offers an extended power reserve of four days, with the indicator at nine o'clock counting down the remaining days and hours. To ensure that each of these is measured with optimum precision, its tourbillon is fitted with a silicon escapement that makes it resistant to the magnetic disturbances and temperature variations of everyday life.