Vacheron Constantin's 'most complicated wristwatch ever'

Vacheron Constantin’s ‘most complicated wristwatch ever’

“Vacheron Constantin’s Les Cabinotiers Solaria Ultra Grand Complication. © Vacheron Constantin

At Watches and Wonders 2025 in Geneva, Vacheron Constantin revealed its most complicated wristwatch ever — the Les Cabinotiers Solaria Ultra Grand Complication.

This one-of-a-kind timepiece features 41 complications, including 5 rare astronomical functions and a new Westminster minute repeater. It contains 1,521 parts and is the result of eight years of work, with 13 patents filed during its development.

“Vacheron Constantin’s Les Cabinotiers Solaria Ultra Grand Complication. © Vacheron Constantin

Made from 18K white gold, the watch has a 45mm case and is 14.99mm thick. Its double-sided display brings together three types of timekeeping: standard civil time, true solar time (which takes into account the Earth’s orbit), and sidereal time (based on the stars).

“Vacheron Constantin’s Les Cabinotiers Solaria Ultra Grand Complication. © Vacheron Constantin

Beyond telling time, the Solaria also tracks the sun’s position, its highest point in the sky, and its angle, and even helps identify when and where celestial objects will appear.