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

CVD

CVD coating, or Chemical Vapor Deposition, is an advanced technique in watchmaking used to enhance durability and aesthetics. The process involves placing the watch component in a vacuum chamber which removes air and pressure and where gaseous chemicals react at high temperatures. These reactions cause a thin, solid layer of material, often diamond-like carbon (DLC) or other specialized coatings, to bond with the surface at a molecular level.

This precise, controlled application ensures a uniform and ultra-hard finish, significantly improving scratch resistance, and corrosion protection. CVD is also highly versatile, allowing for a variety of finishes, including matte, glossy, and vibrant colors, which remain vivid and consistent over time. As a result, watches treated with CVD coating combine lasting performance with striking, modern aesthetics.