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

Home
Glossary
Regulating organ

Regulating organ

Is a vital component composed of the balance wheel and the hairspring. The balance wheel, a rotating wheel, oscillates in a back-and-forth motion at a consistent rate. Working in tandem, the hairspring, a delicate spring, regulates and balances the movement of the balance wheel. By controlling the oscillation of the balance wheel, the hairspring ensures the watch's accuracy and stability. The regulating organ plays a critical role in maintaining the precise timekeeping and overall performance of a mechanical watch.