ENHANCING MICROMECHANICAL ACHIEVEMENTS
RM 030 AUTOMATIC
POWER-RESERVE INDICATOR AND DATE DISPLAY
Located on a scale at 9 o’clock, the power-reserve indicator shows the number of hours of energy left in the mainspring before the watch stops.
Semi-instantaneous ans placed in a vertical aperture at 7 o’clock, the calendar disc of sapphire crystal is treated with non-reflective coating on both sides.
Movement dimensions: 30.25 x 28.45 mm
Thickness: 5.67 mm
Number of jewels: 40
Barrel arbour: AP 20 steel
Balance: Glucydur®, 4 arms, 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)
Three-position stem: Manual winding, date adjustment, time setting
The design and execution of the watch demonstrate a holistic approach to conception of the movement, case and dial. As a
result, everything has been constructed according to extremely rigorous specifications, in the manner of the analytical engineering methods used in the design of Formula 1 racing cars, where the chassis and the engine are developed in complete harmony. For example, a casing ring is no longer used, and the movement is mounted on chassis mounting rubbers (ISO SW) fixed by grade 5 titanium screws. Features such as these provide evidence of uncompromising workmanship.
The case of the RM 030 requires 86 preparatory operations, including 49 striking operations, before cutting and milling phases for the three main components (bezel, caseband, caseback) can begin. Machining involves 20 hours of setting and alignment, as well as 30 hours for programming.
The tripartite case is water resistant to 50 metres, ensured by 2 Nitrile O-ring seals. The case is assembled with 20 spline screws in grade 5 titanium and abrasion-resistant washers in 316L stainless steel.
This security system prevents accidental overwinding of the watch, which can cause damage to the winding stem or place extreme pressure on the barrel spring.