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.

Ferdinand Berthoud

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Ferdinand Berthoud

Ferdinand Berthoud is a Swiss watch brand founded in 2009 by Karl-Friedrich Scheufele.

Ferdinand Berthoud watches are known for their unique designs, high-level of finishing, and innovative technical features. The brand produces limited editions of its watches, with each piece being individually numbered and certified.

One of the standout features of Ferdinand Berthoud watches is the use of a tourbillon mechanism, which helps to counteract the effects of gravity on the watch's movement, resulting in greater accuracy. The brand also incorporates other high-tech materials, such as ceramic ball bearings and carbon fiber components.

Ferdinand Berthoud offers several collections of watches, including the Chronomètre, the FB 1, and the FB 2, and other groups.