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
Quartz

Quartz

Is a solid crystalline mineral composed of silica (silicon dioxide) and is one of the most abundant minerals on Earth, found in various rocks, especially sandstone and granite. In watches, quartz is used as a battery. This battery is an essential component in quartz movements, providing the necessary power to operate the electronic circuits and mechanical devices in the watch.

The quartz battery has a long lifespan before needing replacement, allowing the watch to maintain its accuracy and operate for an extended period without frequent recharging or resetting.