- Movement
- Automatic winding, skeletonised
- Size
- 47.00 mm diameter × 14.60 mm
Overview
All-black boutique execution of the diver’s watch
This RM 028 carries a black DLC titanium case and bezel with red detailing on an otherwise monochrome watch. DLC is a diamond-like carbon coating applied over titanium, used across several of the RM 028 limited editions.
Case, movement and diving specification are those of the model: 47.00 mm by 14.60 mm, three-part construction, 300 metres to ISO 6425, and the calibre RMAS7 with a variable-geometry rotor driving two barrels.
Key details
Case materialBlack DLC titanium
MovementCalibre RMAS7, automatic winding
Water resistance300 m, ISO 6425
Design and engineering
- Black DLC coatingDiamond-like carbon over titanium, which raises surface hardness as well as giving the finish.
- Double-push-button bezel securityBoth bezel buttons must be pressed at once for the bezel to rotate anticlockwise.
- Three-layer bezelHeld by 22 screws so it cannot be dislocated by impact.
- Skeletonised grade 5 titanium movementBaseplate and bridges in grade 5 titanium, showing hours, minutes, seconds and a semi-instantaneous date.
- Date at 7 o’clockThe calendar sits in a vertical aperture, with the date disc in sapphire.
Specifications
Technical specifications
| Reference | RM 028 |
|---|---|
| Calibre | RMAS7 |
| Movement | Automatic winding, skeletonised |
| Functions | Hours, minutes, central seconds, semi-instantaneous date, variable-geometry rotor |
| Power reserve | 55 hours |
| Frequency | 28,800 vph (4 Hz) |
| Jewels | 32 |
| Barrels | Two |
| Baseplate and bridges | Grade 5 titanium |
| Case dimensions | 47.00 mm diameter × 14.60 mm |
| Case shape | Round, tripartite |
| Case material | Black DLC titanium |
| Bezel | Black DLC titanium, unidirectional, three layers, 22 torque screws, double-push-button security |
| Crystal | Sapphire, anti-glare both faces |
| Water resistance | 300 m, ISO 6425 |
| Strap | Black 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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