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
Plate

Plate

It is a flat piece of metal used as a base to hold the components of a watch movement. It usually contains holes that aid in the installation and support of the components, as well as fine jewel holes at pivot points for the jewels used to reduce friction.

The plate is responsible for supporting and securing the bridges, gears, jewels, and other intricate parts of the movement. It includes the necessary holes and spaces to achieve a precise balance and interaction between these components. The plate is considered a crucial part in the construction and stability of the watch.

The design and finishing of the plate can vary depending on the style of the watch and the level of craftsmanship. Some watches feature intricately decorated plates with intricate engravings or meticulous patterns, enhancing the aesthetic appeal of the watch.