Richard Mille RM 055 49.9 × 42.7mm Manual Winding Watch
Built around the bold proportions of the RM 055 design, this tonneau-shaped mechanical sports watch combines an openworked dial, a black carbon-fiber composite case, and vivid red accents for a highly recognizable racing-inspired appearance.
The fully skeletonized dial exposes the gears, bridges, barrel, and transmission components beneath the sapphire crystal. A dark movement finish is contrasted by red minute markings, silver-tone luminous hour markers, and three-dimensional titanium-tone hands, creating visual depth without sacrificing basic time readability.
A red rubber strap completes the lightweight sports configuration, while exposed case screws and the layered carbon texture strengthen the watch’s technical character. The manual-winding RMUL2-type movement features a regulated adjustment structure, allowing timing performance to be fine-tuned during professional servicing.
Key Advantages
- Fully openworked display with visible mechanical components
- Lightweight tonneau profile designed for a strong wrist presence
- Black-and-red racing aesthetic with exposed technical details
- Layered carbon texture gives every case a distinctive appearance
- Luminous markers and hands improve low-light readability
- Flexible red rubber strap suited to active and casual wear
- Manual-winding construction creates a more engaging mechanical experience
- Regulated movement architecture supports straightforward professional adjustment
Technical Specifications
| Specification | Details |
|---|---|
| Design Reference | Richard Mille RM 055 Series |
| Model | RM 055 |
| Watch Type | Tonneau-Shaped Skeleton Mechanical Sports Watch |
| Case Dimensions | 49.9 × 42.7mm |
| Movement | Manual Winding RMUL2-Type Mechanical Movement |
| Dial | Fully Skeletonized Openworked Dial |
| Inner Flange | Black Inner Flange with Red Minute Scale |
| Hands | Titanium-Tone Three-Dimensional Luminous Hands |
| Hour Markers | Silver-Tone Luminous Markers |
| Case Material | Black Carbon-Fiber Composite with NTPT-Style Layered Texture |
| Strap | Red Rubber Strap |
| Crystal | Sapphire Crystal |
| Water Resistance | Suitable for everyday splashes only. Not suitable for swimming or showering. Please refer to our Water Resistance Care Guide. |
| Adjustment System | Regulated Balance with Index Fine-Adjustment System |
FAQ
1. Does the 49.9 × 42.7mm case wear very large?
The tonneau shape has a bold wrist presence, but the lightweight carbon-fiber composite case helps reduce the heavy feeling often associated with watches of similar dimensions. Wrist fit will also depend on strap adjustment and wrist shape.
2. How should the manual-winding movement be operated?
Turn the crown slowly while the watch is off the wrist. Stop winding when noticeable resistance is reached, and never force the crown after the movement is fully wound.
3. Is the time easy to read on the skeleton dial?
The red minute scale, silver-tone luminous markers, and three-dimensional luminous hands provide contrast against the dark mechanical background. However, the display is intentionally more technical and visually complex than a traditional solid dial.
4. Will every carbon-fiber case have the same pattern?
No. Small differences in layered grain, stripe direction, and surface appearance are natural characteristics of carbon-fiber composite material and make each case visually distinctive.
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