In the first of series of watches built in collaboration with independent watchmakers, Louis Vuitton in late 2023 launched the LVRR-01 Chronographe à Sonnerie, developed by Louis Vuitton and the independent Geneva brand Atelier Akrivia (founded by watchmaker Rexhep Rexhepi) in a redesigned Louis Vuitton Tambour case.
The new watch, a luxurious double-faced chronograph with a chiming complication, is powered by an all-new tourbillon movement. The chiming function can be activated by the pusher at two o’clock, which will initiate a chime heard once per minute while engaged. 
When compared with conventional movements, the new LVRR-01 caliber is inverted, with the chronograph and chiming mechanisms visible on the front with the more traditional displays on the back.
Louis Vuitton and Akrivia have devised a contemporary look for the front side of the watch, opting for a modern tinted sapphire crystal that echoes the innovative dual functions placed there. 
On the back, the watch offers a more traditional face, with a white grand feu enamel dial. This dial was designed by Rexhep Rexhepi and crafted by Nicolas Doublel, the in-house enameler at La Fabrique du Temps Louis Vuitton. Note that enamel dial echoes the look of the premiere wristwatch made by Louis Vuitton in 1988.
The two watchmakers not only combined their watchmaking talents, but enshrined their dual efforts on the dial with a new logo.
While at arms length the logo seems conventional, a closer look reveals a union of the two brand names. The ‘LV’ is incorporated into ‘AKRIVIA,’ which represents the first time in history that Louis Vuitton has combined its logo with of the logo of another brand.
Historic tourbillon
Beneath the LVRR-01’s tinted sapphire front, the tourbillon at the six o’clock position completes one revolution every five minutes, far slower than conventional tourbillons, but not unusual among older chronometers. 
The innovative chiming chronograph that indicates elapsing minutes marks a first for a wristwatch, according to the watchmaker. However, the combination of elapsed time measurement with a striking mechanism has been used in pocket watches and more recently on Omega’s Speedmaster Chrono Chime, though the Omega chime operates in a different sequence. 
Inside the LVRR-01’s tourbillon cage you’ll find a balance wheel with twin broad arms and eight inertial regulating weights, inspired by those found in marine chronometers. 
For the chime, Atelier Akrivia has developed a black-polished steel hammer that strikes a tempered steel gong.
In order to power both the chronograph and the chiming mechanism, Louis Vuitton and Rexhep Rexhepi have outfitted the movement with twin barrels, one power source for the timekeeping portion of the movement and the chronograph and another for the chime. Unusually however, the second barrel only supplies power when the chronograph/sonnerie is activated.
Louis Vuitton and Atelier Akrivia applied all this innovation within a 39.9mm platinum Tambour case with touches of Rexhep Rexhepi style. This means the case is somewhat thinner than the traditional Tambour shape, with its more streamlined form, sloping bezel and sculpted lugs.
Similarly the crown and pusher are seven-sided, as on Louis Vuitton watches, but they are hand-hammered in the Atelier Akrivia style with added chamfering on their edges.
Price: CHF 450,000, limited edition of ten. 
Specifications: Louis Vuitton/Atelier Akriva LVRR-01 Chronographe à Sonnerie
Movement:
- LVRR-01 caliber: Manual winding movement developed by Atelier Akrivia
- Functions: Central hours and minutes, 5-minute tourbillon at 6 o’clock; Chronograph à sonnerie (minutes & seconds)
- 391 components, including 55 for the tourbillon only
- 72-hour power reserve
- 21,600 vibrations per hour
- 41 jewels
- Case:
• Reinterpreted Tambour case
• Diameter: 39.9 mm
• Thickness: 12.2 mm
• Water-resistant to 30 meters. - Front dial:
• Smoked translucent sapphire dial
• Six gold cubes filled with translucent Plique-à-jour
fired enamel
• 3N Gold railway and logo - Chronograph dial:
• Traditional Grand Feu enamel on a palladium-gold base • Enamel dial features twin scales for hours and minutes
Strap:
• Natural calfskin leather
Buckle:
• Platinum ardillon buckle
Trunk:
• High watchmaking special trunk with hand-painted Monogram canvas.
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