- Year
- 2020
- Condition
- Very good
- Accessories
- Box and papers
- Movement
- Automatic winding, skeletonised
- Size
- 50.00 × 42.70 × 13.95 mm
Overview
Red gold execution of the declutchable rotor automatic
This RM 030 carries an 18k red gold case in the model’s tonneau of 50.00 × 42.70 × 13.95 mm, on a black rubber strap.
The calibre RMAR1 is a skeletonised automatic movement with 40 jewels running at 4 Hz. Its rotor declutches from the winding barrel when the power reserve reaches 50 hours and re-engages at 40, so the mainspring is never held at full tension and torque delivery stays in its best range.
Key details
Case material18k red gold
MovementCalibre RMAR1, skeletonised automatic winding
Case dimensions50.00 × 42.70 × 13.95 mm
Design and engineering
- Declutchable rotorFour years of development went into the concept, which links automatic clutching and declutching of the winding system to a torque sensor.
- Winding indicatorAt 12 o’clock, reading on when the rotor is winding the barrel and off when it is disengaged.
- Titalyt®-treated titanium movementBaseplate, bridges and balance-cock in grade 5 titanium, wet sandblasted and Titalyt® treated; barrel bridges PVD coated.
- Movement mountingNo casing ring; the movement is carried on chassis mounting rubbers fixed by four grade 5 titanium screws.
- Case assembly20 grade 5 titanium spline screws with abrasion-resistant 316L stainless steel washers, two nitrile O-ring seals for 50 metres.
Specifications
Technical specifications
| Reference | RM 030 |
|---|---|
| Calibre | RMAR1 |
| Movement | Automatic winding, skeletonised |
| Functions | Hours, minutes, seconds, date, winding indicator, power-reserve indicator, declutchable variable-geometry rotor |
| Power reserve | Circa 55 hours |
| Declutch thresholds | Disengages at 50 hours, re-engages at 40 hours |
| Frequency | 28,800 vph (4 Hz) |
| Jewels | 40 |
| Balance | Glucydur®, 4 arms, moment of inertia 4.8 mg·cm², angle of lift 53°; free-sprung with variable inertia |
| Barrels | Two |
| Baseplate, bridges and balance-cock | Grade 5 titanium, wet sandblasted, Titalyt® treated; barrel bridges PVD coated |
| Case dimensions | 50.00 × 42.70 × 13.95 mm |
| Case shape | Tonneau, tripartite |
| Case material | 18k red gold |
| Case construction | 20 grade 5 titanium spline screws, 316L stainless steel washers, 2 nitrile O-ring seals |
| Crown | Torque limiting, titanium |
| Crystal | Sapphire |
| Water resistance | 50 m |
| 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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