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
Mechanical movement

Mechanical movement

It is the fundamental component of a watch, consisting of internal mechanisms that drive the hands and manage the various functions of the watch. The movement contains a complex system of mechanical, electronic, or a combination of both parts to accurately measure and display time and perform various complications.

Watch movements vary in their operation methods and technologies, including traditional mechanical movements, quartz movements, and hybrid movements.

Mechanical actuators are divided into two types:

Automatic and automatic motors: they derive their energy automatically through the movement of the wrist.

Manual Motors: Powered by manual winding (the crown is turned to power it).