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

Home
Glossary
Blued

Blued

It is a specific type of material treatment characterized by its transformation into a blue color without the use of any coating. This color change is achieved by exposing the material to high temperatures, typically between 300 and 350 degrees Celsius, which results in the formation of an oxide layer on its surface. This oxide layer reflects light in a manner that creates a striking blue hue.

Bluing is often used on watch hands, screws, and other small components. It is highly valued for its aesthetic appeal, adding a touch of elegance and luxury to the overall watch design.