The Breguet Classique Tourbillon Sidéral 7255 for the Brand’s 250th Anniversary

It can come as no shock that the fourth instalment of Breguet’s 250^th-anniversary celebrations honours Abraham-Louis Breguet’s most celebrated invention: the gravity-defying tourbillon. Following the Souscription, the Seconde Rétrograde and the Sort XX Chronograph, the discharge of the newest celebratory watch coincides with the day and month Abraham-Louis Breguet obtained a patent for his tourbillon 224 years in the past on 26 June 1801. Marking the primary flying tourbillon to spin into Breguet’s assortment, it is usually a mysterious tourbillon concealing parts to create a magical levitation that defies rationalization. Whereas the flying tourbillon and lovely Grand Feu aventurine enamel dial are novel, the motion relies on the primary modern-era Breguet tourbillon wristwatch, launched in 1990.

As a determine of the Enlightenment, A.L. Breguet’s (1747-1823) inquiring scientific thoughts produced among the most vital improvements in watchmaking, together with the tourbillon regulator (don’t miss Brice’s intensive protection and our video). Designed to compensate for the consequences of gravity on the regularity of pocket watches, A.L. Breguet put in the escapement inside a cellular, rotating carriage and named his invention the tourbillon, a time period Descartes used to explain celestial our bodies rotating on a hard and fast axis. Throughout his lifetime, A.L. Breguet produced round 35 tourbillon pocket watches, together with 5 clocks regulated by his invention. Based on Emmanuel Breguet, a descendant of the legendary horologist and Head of Patrimony at Breguet, 1 / 4 of the tourbillon-regulated timekeepers have been used for naval functions to calculate longitude at sea.

A Mysterious Flying Tourbillon

Now, within the succesful fingers of CEO Gregory Kissling, the 250th-anniversary flying tourbillon and novel blue aventurine enamel dial replicate his roadmap for the model. As Kissling advised MONOCHROME within the interview: “We don’t replicate the previous, we use it as a supply of inspiration.”

Perpetuating A.L. Breguet’s wealthy legacy, the normal tourbillon enters new territory, interpreted as a extra complicated and mysterious flying tourbillon. Supported solely by its decrease bridge, with no higher bar to impede the view, the flying tourbillon necessitates a definite development. With no pivot on the high, the tourbillon needs to be extra strong, extra adjustable and higher balanced than a standard tourbillon. To recreate the feeling of celestial our bodies floating within the huge expanse of house, the flying tourbillon is raised to protrude 2.2mm above the plate and 0.9mm above the enamel dial. In actual fact, the complete motion and proportions of the watch are constructed across the majestic tourbillon.

Growing the spectacle of the tourbillon in suspension, Breguet has factored in a mysterious tourbillon complication. As its identify suggests, a mysterious complication is invisible and sometimes used, for instance, to hide the mechanism that advances a clock’s fingers. Right here, the decrease bridge and decrease assist of the tourbillon carriage are fabricated from sapphire glass and vanish like magic into the ether. Hiding the purpose of contact between the gears and carriage, the invisible drive powering the flying tourbillon produces a spellbinding impact.

Aventurine Grand feu Enamel Dial

The aventurine enamel dial, additionally a primary for the Maison, pays tribute to Breguet’s fascination with astronomy. To create the wealthy, blue, glowing evening sky, artisans at Breguet have handled aventurine glass in a way just like Grand Feu enamel. Crushing the glass right into a powder, 5 layers of aventurine are utilized to the gold dial, every layer fired in a kiln at 800 °C. The massive aperture for the tourbillon is protected by a raised gold ring, permitting the enameller to layer the aventurine with out compromising the magical show. The hours and minutes are displayed in an excentred gold hour ring with a blue PVD coating at midday, indicated by traditional Breguet Arabic numerals and gold open-tipped Breguet hour and minute fingers. Final however not least, the dial options the key signature and the utilized gold inscriptions ‘Breguet’ and ‘Tourbillon’ on the equator of the dial.

Breguet Gold

Like the opposite 250^th anniversary items, the case is crafted within the model’s 18k Breguet gold. Breguet gold, used for the case and dial, is a proprietary alloy (75% gold enriched with silver, copper, and palladium) developed to commemorate the model’s 250^th anniversary. Impressed by the gold utilized by 18^th-century watchmakers, it has a delicate pink hue and is resilient to discolouration. The compact 38mm case has a thickness of 10.2mm with the signature fluting on the caseband and straight, welded lugs. Protected by a spherical sapphire crystal on the dial and a sapphire glass caseback, it’s price mentioning that the tourbillon alone is accountable for the peak of the calibre and the case.

Guilloché

One other approach carefully related to A.L. Breguet is hand-guillochage, which he launched to his dials in 1786 to boost legibility and defend his watches in opposition to counterfeiting. A brand new sample, often called Quai de l’Horloge, impressed by the River Seine because it meanders across the Île de la Cité (the positioning of Breguet’s workshops in 1755), is featured on the caseback, tourbillon assist, and mainplate.

Daniel Roth & the brand new calibre

Though Breguet’s manual-winding calibre 187M1 is tucked away underneath the gorgeous guilloché bridges, CEO Kissling factors out that the motion of the anniversary watch is a reinterpretation of the well-known Breguet Tourbillon reference 3350, the primary Breguet tourbillon wristwatch unveiled in 1990, powered by the manual-winding calibre 558 of Lema,ia. Developed by Daniel Roth whereas he was grasp watchmaker at Breguet, the one-minute tourbillon was totally uncovered by way of an aperture within the dial.

A more moderen supply of inspiration resides within the calibre 558 SQ2 powering the Classique Tourbillon Messidor 5335. Sharing the identical diameter, 2.5Hz frequency and 50-hour energy reserve, the format of the features can also be comparable. Nevertheless, calibre 187M1 has undergone vital modifications for the flying tourbillon and, in contrast to the Messidor 5335, hides its mechanics beneath the closed gold bridges. Measuring 30mm throughout, the motion’s thickness is 4.8mm (excluding the two.2mm tourbillon projection). It beats at 2.5Hz and is provided with a Nivachron steadiness spring to boost resistance to magnetic fields, temperature fluctuations and shock.

The watch is paired with a good-looking navy blue alligator leather-based strap, matching the color of the dial, and an 18k Breguet gold triple-blade folding clasp. The Classique Tourbillon Sidéral is a restricted version of fifty numbered items, retailing for CHF 190,000 (together with tax). Extra data at breguet.com.