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
Pulsometer

Pulsometer

Is a device in watches that measures the heart rate or pulse.

The device is typically found in specialized medical or sports watches. It is commonly controlled on the outer frame of the watch and calibrated to indicate the number of heartbeats per minute. The pulsometer calculates the heart rate within a specific time frame, usually 15 or 30 seconds.