- Year
- 2026
- Condition
- Unworn
- Set
- Box and papers
- Size
- 52.63 × 34.40 × 13.05 mm
Set and condition
Complete set
This RM 74-01 Automatic Winding Tourbillon is accompanied by its original presentation box, warranty card and supporting documentation. The watch and included items are inspected by an expert watchmaker before sale. Additional photographs and video of this piece are available on request.
Original presentation box
Original presentation box and packaging.
Original papers
Warranty card and supporting documentation.
Inspected prior to sale
Reviewed for condition, completeness and functionality. Additional details and photographs are available on request.
Condition photography
Additional close-up images of specific areas are available before purchase.
Overview
Grey Cermet case around an in-house automatic tourbillon
The RM 74-01 was released in 2021 alongside the RM 74-02, the two sharing an ultra-skeletonised automatic tourbillon architecture and differing in the materials of their cases and movements. The RM 74-01 takes the grey Cermet case; its calibre is the CRMT6, whose baseplate and bridges are grade 5 titanium.
Cermet combines a metallic zirconium matrix with a high-performance ceramic, giving a material with the lightness of titanium and the hardness of a ceramic. Richard Mille uses it for the bezels, where scratch resistance matters most, and fits them to a caseband in grade 5 titanium — which is what the "Ti CE-G" suffix encodes. The photograph shows the case in black-grey on a red rubber strap.
The tourbillon sits at 6 o’clock within the frame of the skeletonised movement, and the rotor’s geometry can be varied so that winding matches the wearer.
Key details
Design and engineering
- Calibre CRMT6Skeletonised automatic winding tourbillon movement with hours, minutes and a variable-geometry rotor. It measures 30.70 × 23.70 mm with a thickness of 6.20 mm and runs on 23 jewels at 28,800 vph (4 Hz), with around 50 hours of power reserve.
- Grey Cermet bezelsA metallic zirconium matrix associated with a high-performance ceramic, which gives the material its grey colour. It has a mass-to-volume ratio of 4.1 g/cm³ and a hardness of 2,360 Vickers. Richard Mille developed it with Groupe IMI over several years, eliminating the nickel and cobalt binders usual in this family of materials for a fully REACH-compliant composition, and using flash sintering — conventional hot stamping combined with bursts of high-voltage current that accelerate the sintering. Materials of similar composition are used in ballistic protection, in shuttle re-entry components and in competition brakes. The bezels are affixed to a caseband in grade 5 titanium.
- Baseplate and bridgesGrade 5 titanium — 90% titanium, 6% aluminium, 4% vanadium — with a PVD treatment. The skeletonised parts were validated separately for strength.
- Free-sprung balance with variable inertiaCuBe, four arms and four setting weights, moment of inertia 7.5 mg·cm², angle of lift 50°, with an AK3 balance spring and Incabloc 908.22.211.100 shock protection. The regulator index is eliminated in favour of four adjustable weights on the balance.
- Variable-geometry rotorA heavy outside edge and edge ring in 18K WHITE gold with a platinum weight segment, on the OneWay® ceramic winding system with ball bearings, bidirectional. Two moveable weights are repositioned and fixed with spline screws: closer together, inertia rises and the barrel rewinds more quickly; at the extremities, inertia falls and winding slows.
- Fast-rotating barrelOne revolution every five hours instead of seven and a half.
- Gear-teeth profileThe whole going train uses a special profile with a 20° pressure angle, which Richard Mille states equalises discrepancies arising between wheel centres through thermal change and normal use.
- Case constructionTripartite, water-resistant to 50 m via two nitrile O-ring seals, assembled with 20 grade 5 titanium spline screws and abrasion-resistant 316L stainless steel washers.
The reference
Technical specifications
| Reference | RM 74-01 |
|---|---|
| Calibre | CRMT6, skeletonised automatic winding tourbillon |
| Functions | Hours, minutes, variable-geometry rotor |
| Power reserve | Around 50 hours (± 10%) |
| Frequency | 28,800 vph (4 Hz) |
| Jewels | 23 |
| Movement dimensions | 30.70 × 23.70 mm |
| Movement thickness | 6.20 mm |
| Tourbillon | At 6 o’clock |
| Balance | CuBe, 4 arms, 4 setting weights, inertia 7.5 mg·cm², lift angle 50° |
| Balance spring | AK3 |
| Shock protection | Incabloc 908.22.211.100 |
| Barrel | Fast rotating, 5 hours per revolution instead of 7.5 |
| Going train | 20° pressure angle |
| Case dimensions | 52.63 × 34.40 × 13.05 mm |
| Case assembly | 20 grade 5 titanium spline screws, 316L washers |
| Crystal | Sapphire; sapphire caseback |
| Water resistance | 50 m, two nitrile O-ring seals |
| Baseplate and bridges | Grade 5 titanium, PVD treated |
| Rotor | Variable geometry; 18K white gold edge and edge ring, platinum weight segment, OneWay® with ceramic ball bearings, bidirectional |
| Case material | Grey Cermet bezels on a grade 5 titanium caseband |
| Bezels | Grey Cermet, 4.1 g/cm³, 2,360 Vickers |
| Caseband | Grade 5 titanium |
| Strap | Red rubber |
| Introduced | 2021 |
Buying with HYPA
Purchase with confidence
- Original warranty card included, dated 2026
- Free insured delivery within Australia and Hong Kong · elsewhere quoted
- Payment by bank transfer
- Registered Australian dealerHYPA International Pty Ltd · Registered Victorian second-hand dealer, Registration No. SHD-0018017.
- Direct specialist supportSpeak with the HYPA team before, during and after the purchase.
- Rated 5.0 on Google · 11 reviewsFrom clients of HYPA International on Google. Read the reviews
Before you buy
Buying guides
Continue browsing
