Breguet Novelty : Classique Tourbillon Sidéral 7255
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With the Classique Tourbillon Sidéral 7255 wristwatch Breguet unveils the fourth chapter of its 250th anniversary celebrations. The release date, the 26th of June 2025, is in homage to the 26th of June 1801 when Abraham-Louis Breguet obtained a patent for his invention of the iconic tourbillon. This exclusive watch will have a limited production run of only 50 timepieces.
Mastering time through the art of the tourbillon
The Breguet manufacture possesses a unique expertise in tourbillons, inherited since A.-L. Breguet obtained its patent on 7 Messidor Year 9 of the French Republican calendar – i.e., 26 June 1801.
The House has never ceased to explore the infinite variations of this complication, but this is the first time it is presenting a “flying tourbillon” version. This interpretation also features a so called “mysterious” design, a construction that Breguet has mastered for many years.
Classique Tourbillon Sidéral 7255
A mysterious design
Breguet has accentuated the suspended effect of its first flying tourbillon, by adding the mysterious complication.
The mysterious complication consists of imparting a movement to an organ without it being visibly linked to the rest of the movement. It is often used for watch and clock hands, but any rotating organ can be involved, including the tourbillon, as seen on the Classique Tourbillon Sidéral 7255.
The mysterious tourbillon is a striking complication which has been mastered by Breguet watchmakers. The lower bridge and the lower support of the tourbillon carriage, are, for this model, made of sapphire glass with an anti-reflective coating, rendering them invisible.
The point of contact between the gears and the carriage is not visible; it is offset from the tourbillon cutout and therefore hidden from view by the dial.
Astronomical aesthetics
With the new Classique Tourbillon Sidéral 7255 Breguet has, for the first time in its history, chosen to create a dial with aventurine enamel. A tribute to astronomy and the observation of the starry sky, its deep blue is punctuated with sparkling inclusions, shining like the stars that adorn the celestial vault.
The art of aventurine dates back to the early 17th century and has been constantly perfected ever since. For this model, Breguet chose to work it like grand feu enamel.
The Tourbillon Sidéral, decoration
The Classique Tourbillon Sidéral 7255 is crafted in Breguet gold. This proprietary alloy was unveiled during the first chapter of the 250th anniversary celebrations. Its warm, subtly pink hue is inspired by the gold used by 18th century watchmakers, including Breguet. It is composed of 75% gold, enriched with silver, copper and palladium. Beyond its brilliance, it is distinguished by its resistance to discolouration and its stability over time.
For the first time, the recently unveiled Quai de l’Horloge guilloché is executed not only in a circular pattern on the case back and tourbillon support, but also in a linear fashion across the entire movement main plate.
This guilloche motif’s design is inspired by the delicate curves of the river Seine as it flows around the Île de la Cité and the Île Saint-Louis.
On the dial side, each piece is adorned with the brand’s secret signatures, complementing the many other traditional Breguet design codes such as the finely fluted case middle, the straight lugs and the Breguet “hollowed apple” hands. On the back, each piece is individually numbered from 1/50 to 50/50.
