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
Resonance

Resonance

A complex mechanism typically equipped with two balance wheels or pendulums, where the oscillating components synchronize and vibrate harmoniously, resulting in improved accuracy and stability in timekeeping. In resonant watches, such as those containing two balance wheels or pendulums, resonance helps mitigate the effects of external factors. The resonance mechanism is highly regarded in the watchmaking industry for its ability to enhance timekeeping performance.