Roger Dubuis unveils one-of-one Excalibur Moonlight for Rarities program

Roger Dubuis introduced the Excalibur Moonlight as the first watch in its new Rarities program, presenting the one-of-one piece during Watches and Wonders Geneva 2026. The watch joined the maison’s celestial theme with a zodiac-focused dial, a central tourbillon and a 72-hour power reserve, all in a format meant to stand apart even within high horology.

Rarities is Roger Dubuis’s made-to-order program for unique versions of its timepieces, and the brand has been unusually explicit about how far that customization can go. Clients can shape dials, cases, gemsetting, signed functional components, special prints, engravings and packaging, a level of control that moves the watch from special edition territory into commission territory. Roger Dubuis says the work happens behind a discreet red door on the third floor of its Geneva manufacture, where engineers, designers and watchmakers build each request into a singular object.

The Excalibur Moonlight was positioned as the embodiment of that idea. Roger Dubuis says the watch has four dial layers and depicts the twelve zodiac constellations, while the movement carries Poinçon de Genève certification. In related brand materials, the maison also describes a rotating hours disc in translucent Murano-style blue glass that maps the stars of the zodiac and a second disc that displays the moon phases, underscoring how the watch leans into both astronomical storytelling and visual depth.

The release also fits the broader identity Roger Dubuis has built since 1995, when it says it began redefining high horology in Geneva. The Excalibur line, which the brand describes as its collection of architectural watches with exclusive calibers, has long served as the canvas for that ambition. In the Moonlight, the logic is clear: for collectors buying a milestone gift, the value lies not only in rarity, but in the chance to commission a watch that carries a personal mark from the inside out.