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
Winder

Winder

Is a box that contains a manual or electric motor and a holder where the watch is placed. When the watch winder is activated, it provides a rotational movement to the watch, helping to keep the lubricating oil inside the movement and maintaining the accuracy of the watch. It is used to provide continuous movement to the watch when it is not being worn. When a person stops wearing the watch for an extended period and the watch stops working, a watch winder can be used to keep the watch moving and regularly adjusted.

The use of a watch winder is particularly beneficial for self-winding watches, as it can continuously recharge the mainspring in the watch, ensuring the watch continues to operate without user intervention.