There is a moment, when you first strap on the Excalibur Biretrograde Calendar, that you might feel a sense of cognitive dissonance. This is not the Roger Dubuis you expect. The 45mm Excalibur with its iconic notched bezel and flamboyant skeletonization? That is the Roger Dubuis of memory—the one that built a reputation on audacity, on pushing the visual and mechanical envelope until it nearly burst. The 40mm Biretrograde Calendar, unveiled at Watches & Wonders 2025 to celebrate the brand's 30th anniversary, is something else entirely [citation:1][citation:3]. It is restrained, classical, and deeply personal—a tribute not to the brand's bombastic present, but to its founder's quiet, obsessive past. This is a watch that dares to be surprising by being, well, normal. And that makes it one of the most significant releases of the year.

First Impressions: The Case That Shrinks the Legacy

Out of the box, the 40mm 18K pink gold case immediately signals a departure [citation:1][citation:5]. This is not the Excalibur of the Round Table knights or the hyper-complicated tourbillons that have dominated the brand's narrative. This is a svelte, almost dressy, presence on the wrist. The iconic notched bezel remains, but it feels subdued, its signature grooves rendered in warm, polished gold rather than chunky ceramic. The dimensions—40mm in diameter, a comfortable height—place it squarely in the realm of universal wearability, a first for a brand known for imposing wrist presence.

The caseback, exhibition style, offers a peek into the RD840 automatic movement, a calibre that has been meticulously finished to the exacting standards of the Poin?on de Genève, the highest independent certification for watchmaking in Switzerland [citation:5]. The rotor is a nod to the past, its design echoing the openworked style of the brand's very first creations [citation:5]. It is a subtle but powerful reminder that this watch is not a break from tradition, but a return to its roots.

Dial Details: The Poetry of the Retrograde

The dial is where the magic truly unfolds. The Biretrograde Calendar is a complication that founder Roger Dubuis himself championed, co-patenting the display in 1989 [citation:5]. Two semicircular arcs dominate the upper half of the dial: one at 8:30 displaying the day, another at 2:30 displaying the date [citation:5]. The hands sweep gracefully across their respective arcs and, at the end of their cycle, snap back to zero with a controlled, almost theatrical, gesture. It is a visual dance that is both hypnotic and deeply satisfying.

The dial's construction is a study in layered sophistication. A mother-of-pearl base, a material the brand daringly introduced into men's watches at its founding, provides a luminous backdrop [citation:5]. Applied gold hour markers and blued steel hands offer a classic contrast, while a discreet aperture at 6 o'clock reveals the precise retrograde month indication. The design is a direct and loving homage to the Sympathie Biretrograde Perpetual Calendar, the very first watch the brand produced in 1996 [citation:5]. It is a design that speaks of the founder's reverence for horological tradition, even as the original watches themselves were boundary-pushing for their time.

This is a watch that establishes a powerful conversation between the past and present, much like the work of leading Swiss Luxury Watch Manufacturers who balance tradition and innovation. It also stands as a testament to the enduring relevance of the Swiss Watch Movement Manufacturers who supply the mechanical heart for such creations.

Movement Mechanics: A Calibre with a Conscience

The RD840 calibre, which powers the Excalibur Biretrograde Calendar, is a modern and sophisticated movement. Comprised of 240 components, it offers a robust 60-hour power reserve, is a COSC-certified chronometer, and is hand-finished to the Poin?on de Genève standard [citation:5]. This is not a movement built for spectacle; it is built for precision, reliability, and an almost obsessive dedication to traditional finishing techniques, evident in the hand-bevelled bridges and polished screw heads visible through the caseback.

The movement's development also reflects the broader trends in the industry. As brands increasingly collaborate with OEM Watch Manufacturers to achieve economies of scale, the decision to develop a purpose-built calibre for a 40mm watch—at a time when larger, more imposing cases are the norm—is a significant investment. It speaks to the brand's commitment to the integrity of the design and the founder's original vision.

Two Opposing Views: The Collector's Crossroads

During my time with the watch, I encountered several sharply divided perspectives:

Viewpoint A (The Enthusiast): "This is the most important watch Roger Dubuis has released in years. It proves the brand can be serious without being boring. The 40mm case is a masterclass in comfort, the dial is a work of art, and the movement is a testament to the finest Swiss watchmaking traditions. This is a watch that honors the founder's vision without pandering to the market. It is a modern classic."

Viewpoint B (The Skeptic): "This is a beautiful watch, but it's also a betrayal of the brand's core identity. Roger Dubuis is supposed to be about audacity, spectacle, and pushing the boundaries of mechanical expression. The Excalibur Biretrograde is safe, derivative, and, frankly, a bit boring. At this price, you could commission Custom Gold Watches or a unique piece from a Best Watch Manufacturer In The World that is far more daring. The brand is trying to please everyone and, in doing so, pleasing no one."

Viewpoint C (The Pragmatist): "The watch is a solid performer, but it's also a calculated commercial move. It's an attempt to tap into the growing trend for smaller, more wearable watches while mining the brand's own history for a design that feels 'authentic.' The limited edition status (part of a broader release, not strictly limited) creates a sense of scarcity. It's a smart watch, but it's also a safe one. It's not for the die-hard Roger Dubuis fan, but it is for the collector who is curious about the brand."

These perspectives capture the central tension: is the Excalibur Biretrograde Calendar a masterful return to form or a safe and calculated compromise? The answer likely depends on your personal connection to the brand's legacy and your expectations of what a "Roger Dubuis" watch should be. For some, this is a welcome step toward maturity and wearability. For others, it is a dilution of the very essence that made the brand special.

The Verdict: Who Should Buy This Watch?

After extensive wear, I have concluded that the Excalibur Biretrograde Calendar is a watch for the collector who values history and craftsmanship over sheer spectacle. It is a piece that rewards close attention: the more you learn about the brand's founding, the complexities of the double retrograde display, and the relentless pursuit of the Poin?on de Genève, the more the watch reveals its depth. It is a watch that invites you to slow down, to appreciate the details, and to find meaning in the quiet spaces.

It is also a watch for someone who is willing to look past the brand's sometimes aggressive marketing and see the soul beneath. The Excalibur Biretrograde Calendar is a portrait of the founder, Mr. Roger Dubuis, in a way no other watch has been. It captures his obsession with precision, his love for the retrograde, and his unwavering commitment to the highest standards. It is, in the truest sense, a tribute to a dream [citation:1][citation:3].

The lingering question—whether this watch signals a lasting shift in the brand's philosophy or is a one-off anniversary tribute—will remain unanswered for now. But for a brief, shining moment, Roger Dubuis has offered us a glimpse of what might have been: a world where high horology is not just about volume, but about quiet, enduring craftsmanship.

One final thought: the Biretrograde Calendar is a reminder that sometimes, the most surprising thing a brand can do is to simply remember who it was.

Featured image: The Roger Dubuis Excalibur Biretrograde Calendar in 18K pink gold, showcasing the signature retrograde displays and 40mm case.