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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Horology

Horology

Also known as the study of watches, is a field that encompasses the principles and techniques related to the design and production of watches. It involves the study of the history of watches, the mechanical mechanisms used in watch movements, the designs of dials, hands, and cases, the materials used in watchmaking, and the skills and techniques involved in assembling and maintaining watches.

The aim of horology is to understand the functioning of watches and to develop them, achieving accuracy and reliability in timekeeping, and creating unique designs. Overall, horology covers all aspects of watch manufacturing and operation, encompassing technical, historical, and cultural aspects.