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.

Casio

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Casio is a Japanese watch brand that was founded in 1946. The brand is known for its innovative and technologically advanced watches, including digital watches, analog watches, and smartwatches.

One of Casio's most famous and iconic watches is the G-Shock series, which was introduced in 1983. The G-Shock line is known for its rugged design and shock-resistant construction, making it popular among athletes and outdoors enthusiasts. Another popular line from Casio is the Edifice series, which features stylish and sophisticated analog watches with advanced features such as chronographs, world time, and solar power.

Casio also offers a range of digital watches, including the popular Calculator Watch, which allows users to perform simple calculations on their wrist. The brand's smartwatch offerings include the Casio Pro Trek line, which features rugged outdoor watches with GPS, barometer, and other advanced features.