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
Lugs

Lugs

Are the protrusions or arms located on the sides of the watch case that connect the case to the strap or bracelet. They serve as attachment points for the strap or bracelet, allowing the watch to be securely worn on the wrist.

Lugs come in various shapes and designs depending on the watch model. They play a fundamental role in the aesthetics and functionality of the watch, as they determine the type of strap or bracelet that can be fitted to the watch.