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
Wandering hours

Wandering hours

ِA horological complication dating back to the 17th century, is a unique time display system in watches. Instead of a traditional hour hand, it uses a series of satellites or discs that move along an arc-shaped minute scale. Each satellite displays an hour digit, which changes as it moves along the scale. This captivating presentation adds a touch of mystery and intrigue to time reading, making wandering hours a distinctive feature in watchmaking.