RM19-02 has a frequency of 21,600 vph. It runs in 51 jewels. The movement has a Glucydur balance, Kif shock absorption, and a Nivarox balance spring. There are 4 screws around the balance wheel for fine adjustment. For more effective winding, the mainspring uses a barrel pawl with progressive recoil. Richard Mille says that this device makes winding roughly 20 percent more efficient. The crown has a torque limiting system, guarding the watch against overwinding. The case is made of grade 5 titanium, as are the baseplate and bridges. It is a three-part, tonneau-shaped case. Construction of the case requires 47 stamping operations; in total, there are 250 discrete milling operations. The finishing processes require a full day of work for each watch (see page 2 for details).
The case is 45.4 mm top to bottom and 38.3 mm in diameter. The watch is 12.55 mm thick. It is water resistant to 50 meters. Nonreflective sapphire crystals are on both the front and the back of the case. The front crystal has a hardness rating of 1,800 Vickers. The RM 19-02 Tourbillon Fleur is being produced in a limited series of 30 pieces worldwide.
FINISHING:
MOVEMENT
– Anglage and polishing by hand
– Locking sections hand polished
– Sapphire blasted milled sections
– Lapped and polished contact points
– Burnished pivots
– PVD treatment
STEEL PARTS
– Sapphire blasted surfaces
– Satin finished surfaces
– Anglage and polishing by hand
– Burnished sections
GEAR WHEELS
– Concave chamfering with a diamond tool
– Circular finished faces
– Gilded (before cutting the teeth)
– Minimum correction applied to the wheels in order to preserve geometry and performance