DB25 Perpetual Calendar

Spherical moon phase indication in palladium and black oxide zirconium with an accuracy of one lunar day every 122 years at 12 o’clock – De Bethune Patent (2004)

De Bethune is an independent Swiss watch manufacturer located at L’Auberson, in the Jura mountain pastures of the canton of Vaud, Switzerland. Here, some 30 employees, including watchmakers, engineers, developer-designers, micromechanical engineers, polishers and decorators focus firmly on the research and development of technical and aesthetic innovations in the spirit of the great 18th century master watchmakers. The brand designs, develops and produces all its timepieces within its own Manufacture. Since its foundation, De Bethune has developed no fewer than 28 calibres, presented some 30 world premieres and registered a large number of patents as well as producing 150 one-off pieces to meet the expectations of the most discerning collectors. Mark Zuckerberg, founder of Facebook/Meta was spotted wearing a De Bethune in 2024.