Roger Dubuis Excalibur Spider Pirelli Silver 45mm Men Automatic

Roger Dubuis is not a brand collectors buy for “safe” choices. They buy it when they want a watch that can stand apart inside a serious collection, and the Excalibur Spider Pirelli does exactly that. Among the many Excalibur references, this one is the louder, more motorsport-coded sibling: a 45mm men’s automatic skeleton watch with silver and grey visual depth, a fluted bezel with exposed screw details, and a black rubber strap with a Pirelli-style pattern. It is not trying to be the most versatile Excalibur. It is trying to be the one you remember.

That distinction matters for collectors. In the Roger Dubuis family, some pieces lean into the brand’s dramatic architecture, while others lean harder into partnership identity. The Excalibur Spider Pirelli belongs to the latter camp. The Pirelli link is not decoration; it shapes the entire attitude of the watch. The strap texture, the openworked construction, and the technical skeleton layout all push the watch toward the track-luxury end of the spectrum. If you already know Excalibur, this piece reads as a more extroverted branch of the line rather than a different language altogether.

Front view of the silver-toned skeleton dial.

The watch is immediately identifiable as a men’s mechanical piece. Its automatic movement is visible through the dial architecture, and the openworked case makes the mechanical story part of the design instead of hiding it behind a solid face. The silver and grey tones keep the look controlled, but only just. The dial is still busy in the Roger Dubuis way: layered, angular, and built around a tourbillon-style visual layout that draws the eye to the center while leaving the surrounding structure exposed.

What separates this from many other high-end skeleton watches is the brand’s willingness to make the movement look like a graphic object. Roger Dubuis does not use openworking as a light touch. It uses it as a statement. The Excalibur Spider Pirelli shows bridges, depth, and negative space with the confidence of a watch that expects to be studied closely. That is collector bait. Not because it is subtle, but because it gives you a lot to own visually.

Case profile and strap integration.

The 45mm case size reinforces the identity. This is not a compact dress-sport watch trying to disappear under a cuff. It wears as intended: wide, assertive, and architectural. The openworked case construction helps keep the watch from feeling heavy in appearance, even if the proportions are unapologetically large. The oversized crown continues the same theme. It is practical, but also part of the design language—another visible cue that this is a machine-first watch.

Collectors often compare Excalibur Spider references to one another, and that is where the Pirelli edition becomes interesting. Against more neutral Excalibur Spider variants, this model has a sharper identity. The rubber strap with its tire-inspired pattern gives it a direct motorsport link, while the silver/grey skeleton presentation prevents it from becoming visually aggressive in a crude way. It is refined aggression. That balance is what makes it collectible rather than simply loud.

Openworked dial depth with grey metallic contrast.

The fluted bezel is another important detail. On many watches, a bezel is just a boundary. Here, the exposed screw details turn it into part of the industrial theme. It frames the dial without softening it. That matters because the Excalibur Spider Pirelli is all about structural honesty: if something looks mechanical, it usually is. The bezel does not hide the case. The bridges do not hide the caliber. The strap does not pretend to be leather. Every surface is telling the same story.

Fluted bezel with exposed screw details.

From a collector standpoint, this model sits in a useful position. It is recognizably Roger Dubuis, clearly tied to the Excalibur Spider line, and specifically marked by the Pirelli collaboration. That combination gives it stronger identity than a generic skeleton sports watch. It also gives it a more defined conversation point than some sibling references, which can sometimes be separated only by small changes in materials or dial execution. Here, the collaboration itself is part of the appeal.

The visible automatic movement is central to that appeal. Even without specifying every internal component, the presentation makes clear that the watch is designed around mechanical theater. The tourbillon-style layout adds to the sense of kinetic depth, making the dial feel alive rather than static. This is where Roger Dubuis excels: turning horology into visual architecture. The result is a watch that rewards both a quick glance and close inspection.

Oversized crown and angular case details.

The black rubber strap deserves separate mention because it is not an afterthought. The Pirelli-style pattern ties the watch back to its performance roots, and the material choice keeps the overall package aligned with the sporty concept. On a 45mm Roger Dubuis, strap design matters because it helps manage the visual mass. Here, it does more than that: it completes the watch’s identity as a luxury instrument with trackside DNA.

Side angle showing the layered construction.

For buyers comparing collector-grade Excalibur pieces, this one will appeal to those who want explicit branding through design, not just through a logo. It is a watch that announces the collaboration without needing explanation. That can be a strength in a collection, especially if the goal is to keep one Roger Dubuis that feels distinct from the rest. It does not compete by being the most understated. It competes by being the most characterful.

Close look at the skeletonized movement layout.

The Excalibur Spider Pirelli also benefits from the brand’s signature openworked case language. The aggressive lugs, layered geometry, and exposed mechanics all support the same collector logic: this is a watch meant to be recognized instantly from across a room and still remain interesting at wrist level. That combination is harder to execute than it looks. Many watches can be bold. Fewer can stay coherent while being bold.

Profile view highlighting case architecture.

If you are evaluating it against sibling Excalibur references, the question is not whether this is the quietest option. It is whether this is the best collector statement. For a buyer who wants a Roger Dubuis with motorsport energy, a visible automatic engine, and a clear collaboration identity, the answer is strong. The silver skeleton finish keeps it from becoming visually exhausting, while the Pirelli strap and industrial bezel details make sure it never becomes generic.

Overall view of the Roger Dubuis Excalibur Spider Pirelli.

In the end, the Roger Dubuis Excalibur Spider Pirelli is best understood as a collector’s alternate choice inside the Excalibur family: not the obvious one, but the one with a sharper point of view. It is a men’s 45mm automatic watch with a skeleton dial, an openworked case, an oversized crown, and enough visual engineering to justify its place in a serious modern luxury lineup. If sibling references are about variation, this one is about identity.