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
Axle or Arbor

Axle or Arbor

Is a small shaft or rotating rod used to support and rotate various components of a watch movement. It acts as an axis or pivot point for gears, hands, and other moving parts. The axle is typically made of a durable material, such as steel, and is carefully fitted within the barrel to ensure smooth and accurate operation. Its role is crucial in maintaining the proper alignment and functionality of the watch's internal mechanisms.