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
Zinc

Zinc

It is a chemical element known for its anti-corrosion properties and resistance to oxidation. It is a shiny white metal that is used in combination with other metals such as copper, aluminum, and steel to create watch components. These alloys provide strength and durability to the watch and help protect it from corrosion and tarnish.

Additionally, zinc is used in some internal parts of mechanical watches to protect them from corrosion, ensuring smooth operation of the movement.