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
Maltese Cross

Maltese Cross

Is a distinctive and symbolic emblem used by the Swiss watchmaker "Vacheron Constantin." It consists of a cross with four equal-length arms, often featuring a slightly concave design. The Maltese Cross is considered a logo and a heritage of the brand, representing its craftsmanship and traditions. Inspired by the cross used by the Knights Hospitaller of the Order of St. John, the Maltese Cross is an integral part of the Vacheron Constantin brand.
vacheron constantin maltese cross | eBay