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Les Cabinotiers

Solaria
Ultra Grand Complication
La Première

The most complicated wristwatch ever made

Featuring 41 complications,  5 rare astronomical functions and an innovative Westminster minute-repeater, this unique watch with 1,521 components crowns eight years of research and development, including 13 patent applications filed.

The double-sided Les Cabinotiers Solaria Ultra Grand Complication - La Première breaks new ground, not only in mechanical complexity, innovation and design, but also in the realm of miniaturisation.

MECHANICAL COMPLEXITY

Watchmaking process with intricate movement assembly.

COMPLEX MINIATURISATION

One major difficulty lay in housing the Calibre 3655 and its 1,521 components in a reasonably sized case that would comfortably fit the wrist. Mission accomplished by the watchmaker, who succeeded in tucking the movement into a case measuring 45mm in diameter with a height of only 14.99mm – a watchmaking tour-de-force.

Close-up of a high-end watch movement with polished components.

AN INNOVATIVE CHIMING MECHANISM

One of the first challenges was to accommodate a chiming mechanism without compromising the calibre’s slimness – especially as the musical sequence retained is the most sophisticated of all: a Westminster carillon with four gongs and four hammers. This complication alone accounts for 7 of the 13 patents filed for this unique piece.

TECHNICAL INNOVATION

Zoomed view of the Solaria

FIVE RARE ASTRONOMICAL COMPLICATIONS

This watch occupies a special place in horology, notably for its five innovative astronomical complications, four of which relate to the course of the Sun across the sky. Thanks to an innovative mechanism, the display shows the position of the Sun in real time, its height, time of culmination and angle of declination – astronomical feats for a mechanical wristwatch.

Zoomed view of the Solaria back

TEMPORAL TRACKING OF CELESTIAL OBJECTS, A WORLD PREMIERE

This fifth astronomical complication –  a world first  –  combines a split-seconds chronograph with a representation of the celestial vault and makes it possible to calculate the time it takes for a constellation or a given star to appear centred in the observer’s field of vision.

AESTHETIC REFINEMENT

Close-up of a luxury watch displaying the date, day, month, and year with intricate detailing.

LEGIBILITY OF DISPLAY

Given the concentration of complications, a major challenge was ensuring legibility. Four counters are positioned on the front, two of which display up to five complications each, while the back combines a sky map and chronograph functions. The watch face features a sophisticated interplay of white, black, and grey tones for a striking contrast that enhances ease of reading.

Zoomed view of the Solaria caliber

THE ART OF FINISHING

The components' finishing required uncompromised attention to detail, notably due to an extreme miniaturisation of  the entire Calibre 3655. To showcase the fascinating architecture of this movement, the components’ decoration includes nine types of finish, from circling to satin polishing.

Front view of the Solaria reflecting in mirrors

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