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
Bi-Directional Rotating Bezel

Bi-Directional Rotating Bezel

The rotating bezel is a frame surrounding the watch crystal that can rotate both clockwise and counterclockwise. It serves various functions, such as measuring elapsed time or setting a specific time. The bezel often features time markings or divisions to aid in time reading or timing tasks.

The bidirectional rotation of the bezel offers maximum flexibility for starting and adjusting timing. It is commonly used in diving watches to track air supply for divers. This feature is a practical addition to the watch design, enhancing its functionality.