SJX recently visited Vacheron Constantin  and sat down with Christian Selmoni, style and heritage director, and head of speciality watchmaking, Jean-Marie Bouquin, to discuss the Les Cabinotiers Solaria Ultra Grand Complication, the most complicated wristwatch yet made.

Mr Bouquin led the development of Solaria, and assembled it, creating a wristwatch that’s a worthy follow-up to the most complicated portable timepiece ever, the Berkley Grand Complication that was launched just last year. That in turn broke the record set by Vacheron Constantin in 2015 with the ref. 57260 “Tivoli”.

They discussed the intricacies and innovation in the Solaria, including its modular “plug and play” perpetual calendar, and the implications for future Les Cabinotiers projects, as well as the novel star-tracking chronograph, and the benefits of using silicon for the spokes of the balance wheel. They also touched on the absence of a grande et petite sonnerie.