The RM 030 is characterized by a sophisticated declutching rotor system, a continuation of the torque sensor that the brand developed for its tourbillon watches. Skeletonised automatic-winding movement with hours, minutes, seconds, date, winding indicator, power-reserve indicator and declutchable variable-geometry rotor. Around 55 hours (± 10%) power reserve. The baseplate and the bridges are crafted of grade 5 titanium, a biocompatible, highly corrosion-resistant and remarkably rigid alloy, which enables the gear train to function effortlessly. The alloy is 90% grade 5 titanium, 6% aluminium and 4% vanadium. This combination further increases the material’s mechanical properties, which explains its frequent use in the aerospace, aeronautics and automobile industries. The baseplate of the RMAR1 calibre has been optimised to achieve an extremely low weight/resistance ratio. The skeletonised baseplate and bridges were subjected to separate and extensive validation tests to ensure they met rigorous strength requirements. 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.