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
Marcasite

Marcasite

Is a mineral known as iron sulfide (FeS2) that is commonly used as gemstones or decorative materials to adorn the case or dial of a watch. It is often cut and polished into small faceted stones, serving as substitutes for genuine gemstones because the latter are relatively brittle and not commonly used in watch manufacturing. These marcasite stones add a touch of sparkle and ornamental value to the watch design.