Richard Mille RM055 Blue 43mm Men Manual Watch Review: Case Geometry and Lug Fit

The first thing to understand about this **Richard Mille RM055 Blue 43mm** is not the movement, and not even the color. It is the way the case geometry controls how the watch sits on the wrist. This is a **men’s manual-wind sports watch**, and despite its bold tonneau profile, the RM 055 Bubba Watson is designed to wear with more shape and contour than a flat, oversized case would suggest.

Richard Mille cases are rarely simple from an ergonomic standpoint, and the **RM055** makes that especially clear. The transparent blue tonneau case has visual mass, but the curvature of the mid-case and the structure of the lugs help pull that mass downward rather than letting it float awkwardly on top of the wrist. On a watch with such an open, technical design, that matters. The result is a sports watch that looks architectural yet aims to remain stable and close-fitting.

Clear front view of the transparent blue tonneau case and openworked display.

The **transparent blue tonneau case** is the dominant visual feature here. It gives the RM055 a colder, more crystalline tone than black or carbon-based Richard Mille executions. That changes the personality of the watch. Instead of looking purely aggressive, this version adds a cleaner, almost glass-like effect around the movement. The blue case frames the skeletonized architecture without blocking it, so the movement becomes the center of attention from nearly every angle.

The shape of the case is what makes the watch distinct on the wrist. A round case distributes its size in a familiar way; the RM055 does not. Its tonneau form narrows and stretches differently across the wrist, which can make the watch feel more integrated if the lugs are properly curved. Here, the lugs do important work. They guide the **white rubber strap** downward quickly, reducing the visual and physical gap that can happen with broad sports cases. That downward drop helps the watch wear more naturally than the dimensions alone may imply.

Angle view showing how the lugs turn the strap down toward the wrist.

The dial side stays true to the RM 055 identity. This is a **skeletonized dial** with a fully openworked look, exposing the movement architecture instead of covering it with a conventional face. Bridges, wheels, and structural elements become the design. That suits the Richard Mille aesthetic, where the watch is meant to look engineered rather than decorated. In this blue version, the transparency of the case amplifies that effect because there is little separation between exterior shell and mechanical core.

A **black flange with minute track** creates a useful border around the open center. It gives the eye a place to land and helps preserve legibility against a highly technical background. On many skeleton watches, the display can become visually busy. Here, the black flange acts as a frame, defining the perimeter and making the time display easier to read without softening the RM055’s mechanical character.

The black flange adds contrast around the skeletonized center.

Another key visual cue is the set of **exposed screws on the bezel**. They are not decorative in the traditional sense; they are part of the RM language of visible construction. On this watch, those screws reinforce the idea that the case is assembled as a performance object. Combined with the transparent blue shell, they create a contrast between clarity and hardware: smooth, icy case surfaces against precise mechanical fastening points.

Because this is the **RM 055 Bubba Watson**, it also carries the sport-focused side of the Richard Mille catalog. The model is widely associated with lightweight construction, a manual-wind tourbillon family, and shock-conscious engineering. Without overstating unseen details, it is fair to say the RM055’s visual identity is built around performance architecture. Nothing about the watch is hidden. The openworked movement, layered case, and exposed fasteners all communicate that directly.

The bezel screws and layered case construction define the RM 055 look.

The **white rubber strap** changes the balance of the watch in an important way. A darker strap would make the RM055 feel heavier and more compact. The white strap does the opposite: it lifts the watch visually and sharpens the blue case even more. It also emphasizes the sporty side of the model. On the wrist, white rubber can make a large technical watch feel less dense, especially when paired with a transparent case that already reduces visual heaviness.

Comfort comes back to the same point as the opening: geometry. The strap alone does not solve fit; the case and lugs have to cooperate. On this RM055, the ergonomics are driven by the curved profile of the case body and the way the strap leaves the lugs at a wrist-friendly angle. That is what keeps a tonneau sports watch from wearing like a block. The watch still has strong presence, but the shape is doing active work to make that presence manageable.

Side profile highlights the curved case body and wrist-hugging architecture.

From the side, the RM055 shows why Richard Mille case design matters so much. The watch is not built as a flat sandwich. It has depth, contour, and a deliberate arc. That arc helps the case sit closer to the wrist surface instead of bridging over it. For collectors who care about wearability as much as headline dimensions, this is often the difference between a dramatic watch that works and one that only looks good in photos.

The transparent blue case reveals thickness, curvature, and layered construction.

The skeletonized movement display is also better appreciated from multiple angles. The front gives the strongest architectural impression, but oblique views show how the openworked interior sits within the transparent shell. This creates a floating effect, as if the movement is suspended inside the blue frame. That visual depth is one of the strongest reasons to choose this colorway over a more opaque RM 055 execution.

Oblique angle shows the floating visual effect of the movement inside the case.

Close inspection also highlights how the bezel, mid-case, screws, and flange all contribute to a single technical composition. There is no traditional dial furniture here to distract from that. The watch is designed as a system of visible parts. For buyers who want a conventional luxury sports watch, this will feel extreme. For buyers who want a Richard Mille specifically, that extremity is the point.

Detailed view of the layered bezel and visible construction hardware.

Even in closer cropped images, the watch keeps returning to the same strength: the case does not just display the movement, it shapes the entire wearing experience. The **RM055 Blue 43mm men’s manual watch** is visually loud, but its lugs and curved tonneau body are trying to solve a practical problem at the same time. That combination of drama and ergonomic intent is what makes this reference interesting.

Final close-up of the blue case, skeletonized dial, and white strap integration.

For anyone considering this Richard Mille, the most useful takeaway is simple: do not judge the RM055 only by its width or by the intensity of its design. Look at how the lugs fall, how the case curves, and how the strap meets the wrist. Those details explain why the **Richard Mille RM 055 Bubba Watson** remains one of the brand’s most recognizable sports watches. In this transparent blue version, the engineering is not only visible. It is wearable.

Thumbnail front shot of the RM055 Blue.

Thumbnail angle view emphasizing lug shape.

Thumbnail shot of black flange and openworked center.

Thumbnail detail of bezel screws and blue case.

Thumbnail side profile showing case curvature.

Thumbnail of the transparent case thickness.

Thumbnail three-quarter view of the movement.

Thumbnail detail of exposed hardware.

Thumbnail close-up of strap and case integration.