- Case
- Tripartite tonneau
- Movement
- Automatic winding, skeletonised
- Size
- 52.63 × 34.40 × 13.00 mm
Overview
Snow-set red gold with a jasper centre
The red gold case is snow set across the bezel and caseband, with the dial-centre frame set to match. The panel inside it is jasper, a red-brown hardstone whose figure differs from piece to piece.
The hands are red gold and the strap is red rubber, picking up the tone of the stone.
Key details
Case materialRed gold, snow set
Dial centreJasper
MovementCalibre CRMA1, skeletonised automatic winding
Design and engineering
- Jasper dial centreA natural hardstone panel, cut and set into the centre plate; no two panels carry the same grain.
- Snow settingStones of differing diameters are placed to fill the surface without a repeating grid, so that no metal shows between them. It is a technique rather than a point on the coverage scale that runs from unset through one row and mid to full.
- Oversize dateSemi-instantaneous, placed horizontally under 12 o’clock, driven by two skeletonised calendar discs over a white field.
- Function selectorA push-button at 4 o’clock selects winding, neutral and hand-setting with a single push; an aperture at 4 o’clock shows W, N or H. A second push-button at 10 o’clock corrects the date.
- Baseplate and bridges in grade 5 titaniumMicroblasted and electroplasma treated for rigidity and the surface flatness the gear train requires, then validation-tested separately for strength.
- Fast-rotating barrelOne revolution in five hours rather than the conventional 7.5, which improves the mainspring’s delta curve.
Specifications
Technical specifications
| Reference | RM 037 |
|---|---|
| Calibre | CRMA1, in-house |
| Movement | Automatic winding, skeletonised |
| Functions | Hours, minutes, oversize date, function selector, variable-geometry rotor |
| Power reserve | Around 50 hours (± 10%) |
| Movement dimensions | 28.00 × 22.90 mm, thickness 5.79 mm |
| Jewels | 25 |
| Balance | CuBe, 4 arms, 4 setting screws, moment of inertia 7.5 mg·cm², angle of lift 50° |
| Frequency | 28,800 vph (4 Hz) |
| Balance spring | AK3 |
| Shock protection | Incabloc 908.22.211.100 (transparent) |
| Escapement wheel jewels | Rubifix (transparent) |
| Baseplate and bridges | Microblasted grade 5 titanium, electroplasma treated |
| Barrel | Fast rotating, 1 revolution in 5 hours |
| Rotor | Variable geometry; ARCAP outside edge and edge ring, heavy metal weight segment, ceramic ball bearings, OneWay® winding system |
| Case | Tripartite tonneau |
| Case dimensions | 52.63 × 34.40 × 13.00 mm |
| Case material | Red gold |
| Setting | Snow setting on the bezel and caseband; set dial-centre frame |
| Dial centre | Jasper |
| Case assembly | 20 grade 5 titanium spline screws, 316L stainless steel washers, 2 Nitrile O-ring seals |
| Water resistance | 50 m |
| Strap | Red 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.
Continue browsing
