- Case
- Tripartite tonneau
- Movement
- Automatic winding, skeletonised
- Size
- 42.00 × 49.94 mm; thickness not established
Overview
18K 5N red gold, calibre RMAR2
The red gold RM 30-01 was one of the two executions with which the reference launched in 2023, the other being grade 5 titanium. The calibre RMAR2 carries hours, minutes and seconds, an oversize date, clutch engagement and power-reserve indicators, a function selector and the declutchable variable-geometry rotor.
The case is 18K 5N red gold, fitted to a black rubber strap, with the skeletonised movement visible through sapphire front and back.
Key details
Case material18K 5N red gold
MovementCalibre RMAR2, skeletonised automatic winding
Power reserveAround 55 hours (± 10%)
Design and engineering
- Declutchable variable-geometry rotorThe rotor disconnects from the barrel at 55 hours of reserve and reconnects at 40 hours, holding the mainspring within a narrower torque range.
- Function selectorA pusher at 2 o’clock cycles between winding, date setting and hand setting; a hand at 3 o’clock indicates the selected mode.
- Baseplate and bridges in grade 5 titaniumHand-ground, wet sandblasted and Titalyt® treated — an electro-plasma oxidation process producing a crystalline oxide ceramic coating — with the barrel bridges PVD coated.
- Double-barrel systemEnergy is distributed across two barrels rather than one, increasing the number of rotations and reducing pressure on teeth, bearings and pivots.
- Case assemblyTripartite, 20 grade 5 titanium spline screws, 316L stainless steel washers, two Nitrile O-ring seals, 50 m.
Specifications
Technical specifications
| Reference | RM 30-01 |
|---|---|
| Calibre | RMAR2 |
| Movement | Automatic winding, skeletonised |
| Functions | Hours, minutes, seconds, oversize date, clutch engagement and power-reserve indicators, function selector, declutchable variable-geometry rotor |
| Power reserve | Around 55 hours (± 10%) |
| Declutch thresholds | Disengages at 55 hours, re-engages at 40 hours |
| Movement dimensions | 31.25 × 29.45 mm, thickness 5.41 mm |
| Jewels | 38 |
| Barrel arbour | AP 20 steel |
| Balance | Glucydur®, 4 arms, 4 setting weights, moment of inertia 4.8 mg·cm², angle of lift 53° |
| Frequency | 28,800 vph (4 Hz) |
| Balance spring | Elinvar by Nivarox® |
| Shock protection | Incabloc 908.22.211.100 (transparent) |
| Escapement wheel jewels | Rubifix (transparent) |
| Baseplate and bridges | Grade 5 titanium, hand-ground, wet sandblasted, Titalyt® treated; barrel bridges PVD coated |
| Rotor | Grade 5 titanium central flange, heavy metal weight segment, 18K white gold wings with 5 positions, ceramic ball bearings, unidirectional anticlockwise |
| Case | Tripartite tonneau |
| Case dimensions | 42.00 × 49.94 mm; thickness not established |
| Case material | 18K 5N red gold |
| Water resistance | 50 m |
| Strap | Black rubber |
| Introduced | 2023 |
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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