RM 07-04
RM 07-04
The First Mille sports watch dedicated to women
The RM 07-04, the brand's first women's sports watch, is totally in tune with the constraints imposed by the disciplines of our sportswomen. It combines ergonomics and ultra-lightness, performance and resistance, extreme skeletonization and architectural aesthetics.
Time for action
CALIBRE CRMA8
Skeletonised automatic-winding movement with hours, minutes and function selector.
POWER RESERVE
Around 50 hours (± 10%)
Three years of development were needed to create the RM 07-04 Automatic Sport and the CRMA8 caliber as many challenges had to be met: developing a new very compact and skeletonized in-house automatic movement, guaranteeing shock resistance at 5000g’s, perfectly integrating the case with the movement so the internal workings are visible. The extreme finishing magnifies the elegance of this uncompromising mechanism. The very compactness of the caliber accentuates the quality of the realization all the more as it considerably increases the assembly time by the watchmaker, for whom error is quite simply impermissible.
BASEPLATE AND BRIDGES MADE OF GRADE 5 TITANIUM
Manufacturing these components in grade 5 titanium with black PVD and electroplasma treatments confers great rigidity on the entire assembly, as well as precise surface flatness, essential for perfect functioning of the gear train. Grade 5 titanium is 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 automotive industries.
These components are satin-finished, microblasted and beveled by hand. They were subjected to separate and extensive validation tests to ensure they met rigorous strength requirements.
FREE-SPRUNG BALANCE WITH VARIABLE INERTIA
This type of balance wheel represents the ultimate in innovation. It guarantees greater reliability when subjected to shocks and during movement assembly or disassembly, hence better chronometric results over time.
The regulator index is eliminated, and a more accurate and repeatable calibration is possible thanks to 4 adjustable small weights located directly on the balance.
FUNCTION SELECTOR
In a manner similar to a car’s gearbox, a push-button located at 4 o’clock allows one to select the winding, neutral and hand-setting functions with a simple push. A hand at 5 o’clock displays the selected function.
ROTOR IN PLATINUM
By using a platinum rotor with the OneWay® winding system and ceramic ball bearings, the barrel can be efficiently wound while maintaining the compact dimensions of the skeletonised movement.
MOVEMENT CHARACTERISTICS
29.90 x 22.00 mm
5.13 mm
27
CuBe, 4 arms, 4 setting screws, moment of inertia 7.5 mg•cm², angle of lift 50°
28,800 vph (4 Hz)
AK3
INCABLOC 908.22.211.100 (transparent)
CASE IN CARBON TPT®
The case of the RM 07-04 is made from Carbon TPT® .
Carbon TPT® is a black material composed of multiple layers of parallel filaments obtained by dividing carbon fibres. These layers, which have a maximum thickness of 30 microns, are impregnated with resin, then woven on a special machine that modifies the direction of the weft by 45° between layers.
Heated to 120°C at a pressure of 6 bars, the Carbon TPT® is then ready for machining. When compared to composite materials, whose exceptional physical properties are already well known, Carbon TPT® prevents breaking strains by 25% and the occurrence of microcracks by 200%.
The complete case construction is water-resistant to 50 metres thanks to two Nitrile O-rings, and is assembled with 20 spline screws in grade 5 titanium and 316L stainless steel washers.
VARIATIONS
RM 07-04 - Carbon TPT®
Other features
FINISHING
• Anglage hand polished
• Microblasted milled section
• Microblasted sinks
• Black DLC treatment for the baseplate and bridges
• Satin-finished surfaces
• Anglage hand polished
• Hand-polished bevelling
• Hand-polished locking section
• Concave chamfering with a diamond tool
• Diamond-polished angles
• Circular-finished faces
• Rhodium plating (before cutting the teeth)
• Minimal corrections applied to the wheels in order to preserve geometry and performance
