Roger Dubuis Excalibur BiRetrograde Calendar Watch, 40mm Silver Dial, DBEX1179

On a retrograde display, the hand moves along a semi-circle scale and returns to zero at the end of each cycle. Mr. Roger Dubuis co-patented his own retrograde mechanism in 1989, which became the basis for the Maison’s first ever watch. This year, the Maison pays tribute to its co-founder’s favourite biretrograde display, also named “the ecliptic counters” by the Maison - as a reference to their elliptical shape and their particular function indicating months and date.