It was based on this main idea that he developed the RM 027 Tourbillon watch in close collaboration with Rafael Nadal; the latter tested the RM 027 under real-life conditions and wore it in tennis competitions. The results of this watchmaking experiment are obvious to all: although high-level tennis matches are often accompanied by sudden violent movements and impacts, the RM 027 Tourbillon watch has proven its durability while allowing Nadal to play without any worries. shoot.

Following the RM 006 (42 grams without strap) and RM 009 (29 grams without strap), the RM 027 weighed less than 20 grams including the strap, making it the largest watch in history at the time. Lightweight tourbillon watch.

The baseplate of the RM 027 Tourbillon watch is made of titanium and LITAL® alloy: a high-lithium content alloy that combines aluminum, copper, magnesium and zirconium with a density of only 2.55. Adding lithium, a lightweight element to the alloy mixture, provides excellent stiffness without adding unnecessary weight. For the same reasons, this special alloy is also used in the aviation industry, used in the manufacture of Airbus A380, helicopters, rockets and satellites, as well as F1 racing cars.

The final result was the world's lightest mechanical tourbillon watch at the time, with a movement weighing only 3.83 grams.

The case of the RM 027 watch is made of a high-carbon content composite, which has perfect flexibility and shock resistance, providing safe protection for the tourbillon movement inside the case. The integrated bottom ring and bezel make the watch lighter overall. The watch mirror, carbon fiber bezel and flange all have excellent hardness and torsional rigidity.