- Year
- 2017
- Condition
- Very good
- Accessories
- Box and papers
- Case
- Tonneau
- Size
- 49.90 × 42.70 × 13.05 mm
Overview
A monochrome grey case with polished bevelled edges
The case reads grey throughout — a sandblasted bezel whose only relief is the polished bevelling along its edges, a grey caseband and a black chapter ring around the dial periphery. The strap is grey rubber with the louvered profile Richard Mille uses across the sports references, and the seconds hand is tipped in red.
Inside is the calibre RMUL2, a manual-winding skeletonised movement in grade 5 titanium, running 55 hours on a double barrel.
Key details
MovementCalibre RMUL2, manual winding, skeletonised
Power reserveCirca 55 hours
Case dimensions49.90 × 42.70 × 13.05 mm
Design and engineering
- Calibre RMUL2Manual winding and extremely skeletonised, in grade 5 titanium with PVD and Titalyt® treatment, giving rigidity and the surface flatness the gear train needs.
- Free-sprung balance with variable inertiaThe regulator index is eliminated; four small weights set directly on the balance allow accurate and repeatable adjustment.
- Double barrelEnergy is spread across two barrels, equalising torque and reducing pressure and friction on bearings and pivots.
- Rubberised titaniumRubber is injected at high pressure around the titanium components, insulating the movement from vibration and making the watch more comfortable on the wrist.
- Supporting columns in the case wallsA structural feature of the RM 055 case, visible at the flanks.
- Curved sapphire crystalWith a sapphire caseback.
Specifications
Technical specifications
| Reference | RM 055 |
|---|---|
| Calibre | RMUL2, manual winding, skeletonised |
| Functions | Hours, minutes, seconds |
| Power reserve | Circa 55 hours |
| Frequency | 28,800 vph (4 Hz) |
| Jewels | 24 |
| Balance | Free sprung, variable inertia, 4 adjustable weights |
| Barrels | Double barrel |
| Shock resistance | Over 500 g |
| Baseplate and bridges | Grade 5 titanium, PVD and Titalyt® treated |
| Case | Tonneau |
| Case dimensions | 49.90 × 42.70 × 13.05 mm |
| Strap | Grey rubber |
Buying with HYPA
Purchase with confidence
- Manufacturer warranty confirmed from the warranty card
- Insured worldwide delivery
- Payment by bank transfer or cryptocurrency
- Registered Australian dealerHYPA International Pty Ltd · Victorian Second-Hand Dealer Licence SHD-0018017.
- Direct specialist supportSpeak with the HYPA team before, during and after the purchase.
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