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
micron

micron

the micron is a unit of measurement that is commonly used to express extremely small distances or dimensions. It is a metric unit of length equal to one millionth of a meter (1 μm or 1/1,000,000 meter). Watchmakers often use microns to specify the thickness of components, such as watch hands, dials, or even the case itself. The micron measurement allows for precise quantification of fine details and dimensions in the manufacturing and assembly of watches, ensuring accuracy and quality in the final product.