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
Lathe

Lathe

A lathe is a mechanical tool used in metalworking and other industries to shape and manufacture various materials. It operates by rotating the workpiece around a specific axis while performing different operations such as cutting, sanding, drilling, and other tasks.

Watchmakers use lathes to manufacture or modify various watch components, including wheels, gears, balance staffs, and other intricate parts. Different cutting tools, attachments, and techniques are employed to achieve the desired shape and size for each component. Lathes are essential tools for watchmakers to ensure precision in creating and repairing watches.