This Richard Mille tourbillon wristwatch, developed in conjunction with the Formula 1 racing driver Felipe Massa and named after him, has been produced in a limited edition of 25 numbered watches. This experimental series represents the first time in the history of horology that a movement baseplate has been manufactured in Aluminum-Lithium and represents years of research and development.
The objective of this experimental application of materials contained a dual challenge: the creation of the lightest mechanical watch ever made, and the realization of a tourbillon model able to endure vibrations, accelerations, decelerations and shocks in order to be a reliable companion for Felipe Massa during his tests, practice runs and Formula 1 races.
BRIDGES AND TOURBILLON CAGE IN TITANIUM AND ALUMINIUM/COPPER/MAGNESIUM
TRIPARTITE CASA With water resistance insured by three Nitril O-ring seals with titanium tube driven in and glued. Assembly with spline screws (12) in grade 5 titanium and abrasion-resistant washers in copper-nickel-zinc alloy.
BASE PLATE MADE OF ALUMINIUM-LITHIUM ALLOY These components in grade 2 titanium with black PVD coating allows the whole assembly to be given great rigidity, as well as precise surface flatness which is essential for the perfect functioning of the gear train. The skeletonized baseplate was subjected to separate and extensive validation tests to insure optimal strength requirements.
CALIBER RM009 FM Manual winding tourbillon with hours and minutes.
MOVEMENT DIMENSIONS: 30.20 x 28.60 mm THICKNESS: 6.35 mm
DIAMETER OF THE TOURBILLON CAGE: 10.90 mm DIAMETER OF THE BALANCE WHEEL: 10 mm NUMBER OF JEWELS: 19
BALANCE WHEEL: GLUCYDUR, 2 arms.
MOMENT OF INERTIA: 10 mg/cm2, lever angle 53°
FREQUENCY: 21,600 vph (3 Hz)
POWER RESERVE : 48 hours
BALANCE SPRING: ELINVAR by NIVAROX
SHOCK PROTECTION: KIF ELASTOR KE 160 B28
JEWELS: set in titanium chatons
BARREL SHAFT: in chronifer without nickel (DIN x 46 Cr 13 + S),
which has the following charac