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
Dart

Dart

A Dart, also known as a Guard pin, is a small pin with a flat head and a pointed end that is used to securely fasten the watch movement to the case.

The Dart is inserted into a designated hole in the watch case, and the flat head is pushed against the movement to hold it securely in place. The pointed end of the pin is bent to enhance stability and provide additional protection for the watch movement.