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.

ETA

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Is a Swiss company specializing in the manufacturing of watch movements. Founded in 1856, ETA has established itself as a reference in producing high-quality watch movements. The company excels in both mechanical and quartz movements, offering a wide range of artistic works for different watch styles and complexities.

Over the years, ETA has collaborated with numerous prestigious luxury watch brands, making it a trusted partner in the industry. Prominent brands such as Omega, TAG Heuer, Breitling, Longines, and Tissot have utilized ETA movements in their watches. These collaborations have allowed these brands to benefit from ETA's exceptional technical expertise and craftsmanship, resulting in timepieces that combine Swiss precision with elegant design.

ETA has been recognized with numerous awards and certifications that reflect its excellence and innovation. The company has received multiple certifications for the accuracy and reliability of its movements, including the renowned COSC (Contrôle Officiel Suisse des Chronomètres) certification.