Breguet unveils its most ambitious anniversary piece yet—a mysterious flying tourbillon that pays homage to the stars. In the world of haute horlogerie, few complications command as much respect as the tourbillon. And no name is more synonymous with this mesmerizing mechanism than Breguet—the house that invented it 224 years ago. Now, celebrating its 250th anniversary, Breguet presents perhaps its most captivating interpretation yet: the Classique Tourbillon Sidéral ref. 7255BH/2Y/9VU is equipped with a 38 mm case—10.2 mm thick—in 18K Breguet gold with a fluted caseband and a Grand Feu aventurine enamel dial with subdial at 12 o’clock with satin-brushed blue PVD gold hour circle with Breguet Arabic numerals and Breguet hour and minute hands with hollowed head in 18K Breguet gold, and “Breguet” and “Tourbillon” applied elements in 18K Breguet gold.
A Historic First
The Breguet Sidéral reference 7255 marks a milestone—Breguet's very first flying tourbillon—in a 50-piece limited edition. The name "Sidéral," meaning "of the stars," connects to Abraham-Louis Breguet's astronomical fascinations. In his era, "tourbillon" referred not just to his regulating mechanism, but to planetary systems and celestial bodies rotating on fixed axes.
What makes this timepiece extraordinary is its mysterious nature. The tourbillon appears to float freely above the dial with no visible connection to the movement below. This illusion is achieved through sapphire glass components with an anti-reflective coating that renders the support structure virtually invisible.
Elevated 2.2 mm above the main plate, the flying tourbillon creates a dramatic suspended effect—like a celestial body orbiting in space, perfectly matching the cosmic inspiration behind this piece.
Aventurine: Capturing the Night Sky
The most striking feature is the aventurine enamel dial—a first in Breguet's history. This mesmerizing material, with its deep blue base punctuated by sparkling copper particles, resembles a starlit night sky. Each dial requires at least five firings at over 800 degrees Celsius, with each firing potentially compromising the entire piece.
The random distribution of metallic particles ensures no two dials are identical, making each of the 50 pieces truly unique. Combined with the floating tourbillon, the effect is celestial—time measured by the stars themselves.
For serious collectors, the Sidéral ref. 7255 represents multiple layers of significance: a technical first, an aesthetic triumph, and a bridge between Breguet's astronomical heritage and contemporary vision. The June 26, 2025 release date commemorates the exact date in 1801 when Abraham-Louis Breguet received his tourbillon patent—a fitting tribute to horological history.
The manual wound Calibre 187M1 powers this masterpiece, with the tourbillon's presence determining the watch's 10.2 mm case thickness. Crafted in Breguet's proprietary gold alloy—a warm composition recalling 18th-century precious metals—the case features the newly introduced Quai de l'Horloge guilloché pattern inspired by the Seine's curves around Île de la Cité. The sapphire case back glass is engraved with “BREGUET 250 YEARS”. This movement provides a 50-hour power reserve.
Mastering Time Through the Art of the Tourbillon
The Breguet Classique Tourbillon Sidéral ref. 7255 is more than a timepiece—it's a meditation on time itself, as measured by celestial bodies. By achieving their first flying tourbillon while honoring their founder's astronomical passions, Breguet has created something truly special: a watch that makes time visible not just as measurement, but as poetry among the stars. The watch is delivered on a navy blue alligator leather strap with large scales, lined with navy blue alligator leather with small scales, and secured with an 18K Breguet gold 3-blade folding clasp. Just like the rest of the Breguet 250th anniversary watches, this watch comes in the Special 250th Anniversary Edition red leather case that is individually numbered and inspired by the red Breguet Moroccan leather cases of the period.
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