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
Snap closure

Snap closure

It Is a safe and fast locking mechanism used during watch case assembly. This mechanism allows for the swift reattachment of the watch case back through a sudden or rapid movement. The snap closure mechanism typically includes a small latch or hinge loaded with a spring to facilitate the attachment and detachment of the case back. By applying gentle pressure and utilizing a sudden motion, the latch or hinge securely closes the case. This mechanism enables easy access to the watch movement for maintenance or battery replacement while maintaining the elegant and streamlined appearance of the watch case.