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
Railroad watch

Railroad watch

Is a type of watch specifically designed for railroad workers and engineers. It is a high-precision and reliable timepiece that meets the stringent standards set by railroad authorities. These watches were used to ensure the safety and efficiency of operations and procedures in train stations and on railroads, as well as to prevent accidents and collisions by providing accurate timekeeping.

Railroad watches are characterized by high-quality movements and clear dials. They must comply with strict accuracy standards, which were first established in 1893 and have evolved over the decades with technological advancements.