- Case
- Tripartite tonneau
- Movement
- Automatic winding, skeletonised
- Size
- 52.63 × 34.40 × 13.00 mm
Overview
Pale blue ceramic with a fully paved dial centre
The tripartite tonneau case is pale blue ceramic, matte across bezel and caseband, with a pale inner bezel and a white metal crown.
The dial centre is paved across its whole surface, with the oversize date aperture and the function-selector aperture picked out in gold rings against it. The strap is pale blue rubber.
Key details
Case materialPale blue ceramic
MovementCalibre CRMA1, skeletonised automatic winding
Power reserveAround 50 hours (± 10%)
Design and engineering
- Coloured ceramic caseMatte and hard-wearing, holding its colour without the tonal shift that plated finishes take on.
- Fully paved dial centreStones cover the centre plate across its full area, interrupted only by the date and function-selector apertures, each ringed in gold.
- Oversize dateSemi-instantaneous, placed horizontally under 12 o’clock and 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, in the manner of a gearbox; an aperture alongside shows W, N or H. A second push-button at 10 o’clock corrects the date.
- Patented stem-crown assemblyThe crown is part of the case rather than the movement, so no classical crown attachment penetrates to the heart of the calibre. It is sealed with an Alcryn® O-ring and collar.
- Variable-geometry rotorHeavy external outside edge and edge ring in ARCAP, weight segment in heavy metal, ceramic ball bearings and a OneWay® winding system, allowing the winding rate to be set to the wearer’s activity level.
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 | Pale blue ceramic |
| Dial centre | Fully paved |
| Case assembly | 20 grade 5 titanium spline screws, 316L stainless steel washers, 2 Nitrile O-ring seals |
| Water resistance | 50 m |
| Strap | Pale blue 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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