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
Pendant

Pendant

Is the small decorative element that is attached to the top center of a pocket watch case, connecting to the watch chain. In addition to its decorative function, it may also serve a practical purpose, such as a knob or pendant that can be used to handle the watch, like a crown or a key for winding and operating.

The designs of "boutonnieres" in pocket watches vary widely and include various shapes and symbols. They can be designed in the shape of animals, stars, hearts, religious symbols, or other geometric shapes. "Boutonnieres" can be made of precious metals such as gold or silver and may be adorned with gemstones or pearls.