- Size
- 38.70 × 47.52 × 7.75 mm
Overview
Unset white gold case
The white gold execution of the RM 67-01, unset, with white numerals over the skeletonised movement and a grey strap. The material line on the card reads White gold, which matches the photograph.
The construction is that of the reference throughout: a three-part extra-flat tonneau case at 38.70 × 47.52 × 7.75 mm around the CRMA6, an automatic calibre 3.60 mm thick built specifically for the format.
Key details
CaseWhite gold, unset
MovementCalibre CRMA6, 3.60 mm thick
Power reserveAround 50 hours (± 10%)
Design and engineering
- Calibre CRMA6Skeletonised automatic winding movement with hours, minutes, date and function indicator. It measures 29.10 × 31.25 mm with a thickness of 3.60 mm, runs on 25 jewels at 28,800 vph (4 Hz) and provides around 50 hours (± 10%) of power reserve.
- Baseplate and bridgesGrade 5 titanium. The baseplate is microblasted with a grey electroplasma treatment; the bridges are microblasted and black electroplasma treated, which Richard Mille records as a first for the brand.
- Platinum rotorA platinum rotor on the OneWay® winding system with ceramic ball bearings, which allows the barrel to be wound efficiently while keeping the movement’s compact dimensions.
- Fast-rotating barrelOne revolution every five hours instead of seven and a half, which Richard Mille specifies for reduced periodic internal mainspring adhesion and a favourable mainspring delta curve.
- Gear-teeth profileThe whole going train uses a special tooth profile with a 20° pressure angle, which Richard Mille states equalises discrepancies arising between wheel centres through thermal change and normal use, supporting torque transmission to the balance.
- Semi-instantaneous date and function indicatorA semi-instantaneous date in a vertical aperture at 5 o’clock, with a hand at 2 o’clock showing the crown’s position: W for winding, D for date setting, H for hand setting.
Specifications
Technical specifications
| Reference | RM 67-01 |
|---|---|
| Calibre | CRMA6, automatic winding, skeletonised |
| Functions | Hours, minutes, semi-instantaneous date at 5 o’clock, function indicator at 2 o’clock |
| Power reserve | Around 50 hours (± 10%) |
| Frequency | 28,800 vph (4 Hz) |
| Jewels | 25 |
| Movement dimensions | 29.10 × 31.25 mm |
| Movement thickness | 3.60 mm |
| Baseplate | Grade 5 titanium, microblasted, grey electroplasma |
| Bridges | Grade 5 titanium, microblasted, black electroplasma |
| Rotor | Platinum, OneWay® with ceramic ball bearings |
| Balance | CuBe, 4 arms, 4 setting screws, inertia 7.5 mg·cm², lift angle 50° |
| Balance spring | AK3 |
| Shock protection | Incabloc 908.22.211.100 (transparent) |
| Barrel | Fast rotating, five hours per revolution instead of 7.5 |
| Going train | 20° pressure angle |
| Date | Semi-instantaneous, vertical aperture at 5 o’clock |
| Function indicator | Hand at 2 o’clock showing W, D or H |
| Case dimensions | 38.70 × 47.52 × 7.75 mm |
| Numerals | Solid metal on two titanium rails |
| Crystal | Sapphire, both sides |
| Water resistance | 50 m |
| Case material | White gold |
| Gem-setting | None |
| 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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