Introducing Breguet Unveils the Classique Tourbillon Sidéral 7255

Just two months after unveiling the first timepiece in its 250th-anniversary celebrations, Breguet now presents the fourth model in the commemorative collection: the Classique Tourbillon Sidéral 7255. More than just an homage to the brand’s storied heritage, this edition introduces, for the first time in Breguet’s history, a true flying tourbillon housed within a mysterious construction, a concept last explored nearly twenty years ago with the Classique Tourbillon Messidor 5335.

While the Messidor, launched in 2007, gave the illusion of a floating tourbillon with no bridges or plates, it was not technically a flying tourbillon. Its components were supported by transparent sapphire discs, nearly invisible to the naked eye. As such, mysterious constructions may appear to float, but they are structurally different. In contrast, the new Classique Tourbillon Sidéral 7255 eliminates the upper sapphire bridge altogether, making it the first true flying tourbillon in the history of the brand.

The tourbillon remains inseparably linked to the genius of Abraham-Louis Breguet, whose innovations have left an indelible mark on the world of haute horlogerie. This release pays tribute not only to his invention of the tourbillon but also to his far-reaching influence on the art of watchmaking as a whole. While the tourbillon may be his most celebrated creation, Breguet’s contributions extend far beyond, and we’ve explored them in detail in this article.

Like the other anniversary editions, the Classique Tourbillon Sidéral 7255 is housed in an 18K Breguet gold case, the same proprietary alloy used throughout this year’s celebratory models. Measuring 38 mm in diameter and 10.2 mm in height, the case features the maison’s signature fluted caseband and straight welded lugs. A domed sapphire crystal protects the dial, while the caseback is fitted with a flat sapphire glass.

For the first time in its history, Breguet has chosen to craft a dial using grand feu enamel made of dark blue aventurine glass, enriched with sparkling copper inclusions that evoke the stars scattered across the night sky. Applied over a gold foundation, the dial reflects a perfect harmony of artistic finesse and technical sophistication. The aventurine is treated like traditional grand feu enamel, the glass is ground into powder, its grains slightly larger than those used in conventional enamel, and then applied in no fewer than five layers. Each layer is fired in a kiln at temperatures exceeding 800°C. The result is a dial that is vivid, deep, and utterly unique, no two are exactly alike.

Hours and minutes are displayed on an off-centered gold chapter ring positioned at 12 o’clock, coated in a rich blue PVD finish and adorned with classic Breguet-style Arabic numerals. The signature Breguet open-tipped hands, crafted in gold, sweep across the dial. Subtle yet luxurious finishing touches include the brand’s secret signature, along with raised gold inscriptions of “Breguet” and “Tourbillon” placed along the equator. The tourbillon aperture at 6 o’clock is framed by a raised gold ring.

The mysterious flying tourbillon at 6 o’clock is arguably the watch’s most captivating visual feature. Its lower bridge and carriage support are made from anti-reflective sapphire, rendering them virtually invisible. The contact point between the gear train and the carriage is also cleverly hidden beneath the dial, reinforcing the illusion of a tourbillon floating in space.

Powering this exceptional timepiece is the hand-wound Calibre 187M1, operating at a frequency of 2.5 Hz with a 50-hour power reserve. The movement measures 30 mm across and 4.8 mm in thickness (excluding the 2.2 mm tourbillon projection). It features a Nivachron balance spring, offering enhanced resistance to magnetism, thermal fluctuations, and shock. The movement is adorned with hand-guilloché bridges in 18K Breguet gold, decorated with the house’s iconic “Quai de l’Horloge” pattern.

Completing the piece is a navy blue alligator leather strap that echoes the dial’s starry hue, fastened with an 18K Breguet gold triple-blade folding clasp. The Classique Tourbillon Sidéral 7255 is a limited edition of 50 numbered pieces, priced at CHF 190,000 approximately AED 872,220.

For more information, visit Breguet official website.