Richard Mille RM055 Blue 51mm Men Manual Sports Watch

The Richard Mille RM055 is a men’s manual sports watch, and its biggest advantage is not just how it looks, but how it wears. On a watch this large, bracelet and clasp ergonomics decide whether the piece feels wearable for hours or merely impressive in a display case. The RM055 addresses that problem with a curved case profile and a blue rubber strap that sits close to the wrist instead of fighting it. For a 51mm sports watch, that comfort-first approach is the real story.

Caption: Transparent case and blue-accented RM055 profile.

The RM055 Bubba Watson line is built around the brand’s signature tonneau form, and here that shape works directly in favor of daily comfort. The curved case helps distribute the watch’s presence across the wrist, while the transparent case construction keeps the visual mass from feeling heavy. Even at a substantial 51mm, the watch avoids the blocky, top-heavy feel common to many oversized sports models.

This reference is clearly a men’s mechanical watch with manual winding. That matters because the RM055 is not trying to be a delicate dress piece or a battery-powered utility watch. It is a performance-oriented sports watch with an openworked architecture, designed to be worn, handled, and noticed. The skeletonized dial exposes the mechanics inside, but the layout remains clean enough to keep the watch legible at a glance.

The blue colorway gives the RM055 a sharper, cooler presence. The blue inner flange frames the dial space with a technical edge, and the blue crown accent adds a controlled visual break without overcomplicating the design. Paired with the transparent tonneau case, the result is a watch that feels engineered rather than decorated.

Caption: Video view of the RM055’s openworked case and wrist shape.

Watch video

Where the RM055 stands out most in everyday use is the strap and clasp experience. A large sports watch only succeeds if the strap settles securely without creating pressure points. The blue rubber strap is the right material for that job: flexible, sweat-friendly, and responsive to wrist movement. It supports the curved case instead of pulling against it, which helps the watch feel stable during active wear.

A well-designed clasp or fastening system should disappear once the watch is on the wrist, and that is the ergonomic target here. With a model this size, the goal is not to make it feel small; the goal is to make it feel balanced. The RM055 does that by keeping the contact points smooth and by letting the strap conform naturally. The result is a sports watch that can be worn longer than its dimensions might suggest.

The skeletonized dial also contributes to comfort in an indirect way. Because the dial is visually open, the watch does not feel dense or cluttered. That matters on a large RM piece, where the risk is visual fatigue. Instead, the RM055 stays airy, technical, and easy to read as a single integrated object.

Richard Mille built the RM055 for a very specific audience: buyers who want high-performance watchmaking with a strong wrist presence. The Bubba Watson association reinforces the sports identity, but the watch’s everyday appeal comes from how thoughtfully it sits on the wrist. The curved ergonomic case shape is not an abstract design flourish; it is what makes the watch practical enough to live with.

For collectors who care about wearability as much as prestige, the RM055 offers a rare combination. It is bold, unmistakably luxury sports-oriented, and visually dramatic, yet the strap and case geometry keep it from becoming uncomfortable. That balance is hard to get right in a watch of this scale.

In short, the Richard Mille RM055 Blue 51mm is not just about skeletonization and transparency. It is about how a large manual-wind sports watch can still feel controlled, secure, and comfortable throughout the day. For the right wrist, that ergonomics-first engineering is the most valuable feature of all.