A closer look at the main features of the RM 07-01

Power reserve

Around 50 hours (± 10%).

Baseplate and bridges in Grade 5 Titanium

Microblasted grade 5 titanium with electroplasma treatment provides the baseplate with excellent rigidity and precise surface flatness, essential for the gear train’s perfect functioning. Bridges, also crafted from grade 5 titanium, undergo the same microblasting and electroplasma treatment. The skeletonised baseplate and bridges underwent rigorous individual validation tests to meet optimal strength standards.

Fast-rotating barrel (Five hours per revolution instead of 7.5 hours)

This type of barrel provides the following advantages:

• The periodic internal mainspring adhesion phenomenon is significantly diminished, thereby increasing performance.

• Provide an excellent mainspring delta curve with an ideal power reserve, performance and regularity ratio.

The RM 07-01 uses variable geometry to optimise the rotor’s winding motion.

Rotor specifications

• Heavy external outside edge and heavy edge ring in 5N red gold

• Weight segment in heavy metal

• Automatic winding system OneWay with ball bearings

• Bidirectional winding system

This rotor with variable inertia has been incorporated into the CRMA2 calibre as it allows the rotor to be set according to the owner’s activity level. The setting is modified by adjusting the two weights, which can be moved into the correct position and fixed in place by spline screws. The inertia of the movement is increased when the two weights are closer to each other; the barrel then rewinds more quickly. If the weights are positioned away from each other, the inertia is decreased, resulting in the barrel winding more slowly.

Case

The design and execution of the watch demonstrate a complete conceptual approach to the movement, case and dial. As a result, everything has been constructed according to extremely rigorous specifications and in complete harmony. For example, the casing ring is no longer used, and the movement is mounted on chassis mounting rubbers (ISO SW) fixed by 4 titanium screws. Features such as these are evidence of uncompromising workmanship.

The three-part case is water resistant to 50m, ensured by 2 Nitrile O-ring seals. The case is assembled with 12 grade 5 titanium spline screws and abrasion-resistant washers in 316L stainless steel.

Crystal Bezel side:

In sapphire (1,800 Vickers) with anti-glare treatment (both sides) Thickness: 1.60 mm minimum

Case back:

In sapphire with anti-glare treatment (both sides)

Thickness: 0.95 mm at the centre; outer edges 1.67 mm