News June 2012

RM 030 Black Night

Automatic RM 030 with declutchable rotor

The Watch Quote™ - June 27th, 2012



Following the huge success of the limited editions RM 010 and RM 016 Black Night, Richard Mille is now releasing the RM 030 Black Night. This limited edition of 25 pieces will be available this summer at selected RM retailers in Europe, the Middle East, Africa and Russia.

The RM 030 Black Night features a DLC-treated titanium case which creates a striking contrast with the red of the dial ring and other elements, such as the tip of the second hand, the declutchable rotor indicator and power reserve indicator. This timepiece comes on a black rubber strap complete with a black DLC-treated buckle.

Automatic RM 030 with declutchable rotor

Inside the case of the RM 030 beats the novel calibre RMAR1, representing a further advance in the world of automatic wristwatch design.

The winding of an automatic wristwatch is accomplished by a small turning rotor, silently driven by physical movements of the wearer. These rotations of the rotor provide energy to the winding barrel, which reaches its optimal point once it is fully wound. After this point, overwinding can easily occur and needs to be avoided. This is traditionally achieved through the use of a sliding flange that allows the spring to slip, thus avoiding the movement becoming overwound. However, this traditional system allows the buildup of harmful debris inside the winding barrel as the flange releases the excess energy of overwinding during longer periods, especially when a person is particularly active. This in turn can severely affect chronometric results.

To avoid such adverse conditions, Richard Mille took four years to develop the concept and the design of a rotor that declutches automatically. With this system, the winding barrel is automatically disconnected from the rotor’s winding mechanism at the moment when the spring is fully wound. Additionally, this new mechanism is linked to the power reserve indicator to provide an optimal winding control. This allows both the movement and the oscillator to work with the best ratio of constant torque/power, to provide the optimum chronometric performance.

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Calibre RM 030 with declutchable rotor

Description technique


Movement :Automatic winding
Power reserve :circa 55 hours
Rotor :Declutchable and adjustable rotor geometry
Winding indicator
Date display
Balance :Free sprung balance with variable inertia
Double barrel
Baseplate, bridges
and balance cock
:made of titanium
Crown :Torque limiting crown in titanium
Balance:Glucydur, 4 arms
Inertia moment :4.8 mg.cm2, angle of lift 53°
Frequency:28,800 vph (4 Hz)
Spline screws: in grade 5 titanium for the bridges and the case
Interior flanges :in carbon fibre
Baseplate and bridges :in grade 5 titanium, wet sandblasted, Titalyt® treated
Barrel bridges :PVD coated
Sapphire :blasted and hand-drawn surfaces

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