The Excalibur Bi-Retrograde Calendar by Roger Dubuis

This year, Roger Dubuis celebrates its 30th anniversary, and for the occasion, the company pays tribute to its co-founder’s favourite complication: the bi-retrograde display.

This function, previously featured in the Excalibur Grande Complication alongside a dozen other highly complex mechanisms, takes centre stage once again. The Maison has also introduced a less complicated, more classic edition to further honour the bi-retrograde display.

Also referred to as “the ecliptic counters” by the Maison a nod to their elliptical shape and distinctive role in indicating the months and date the design showcases a symmetrical dial layout. Enhanced by refined detailing, it pays homage to the Maison’s early creations from 1996.

Glossary

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Glossary
Karrusel

Karrusel

Karrusel, also spelled as Carousel, is a horological complication that is similar to a tourbillon in terms of its purpose to improve timekeeping accuracy in mechanical watches. It was invented by Danish watchmaker Bahne Bonniksen in the late 19th century. The Karrusel mechanism consists of a rotating platform or carriage that holds the balance wheel, escapement, and other regulating components. Unlike a tourbillon, which typically rotates on its axis once per minute, the Karrusel rotates at a slower rate, typically once every few minutes. This rotation helps to counteract the effects of gravity on the balance wheel and improve the watch's overall precision.