Richard Mille 025 Chronograph Diver’s

The Tourbillon Chronograph 025 Diver’s Watch by Richard Mille
RM 025 Building upon the premiere use and consequent success of the carbon nanofiber baseplate developed for Richard Mille’s tourbillon wristwatches, this high-tech material now makes its first entrance into the demanding environment of a diver’s wristwatch.

CALIBER RM 025: manual winding tourbillon movement with hours, minutes, chronograph, power reserve, torque indicator, function indicator. Dimensions : diameter 50.70 mm x 19.20 mm (thickest area)

MAIN FEATURES (MANY OF WHICH ARE MAJOR TECHNICAL INNOVATIONS) POWER RESERVE
Circa 50 hours (numerical indications to the left of the barrel).

Tourbillon Richard Mille 025 specifications
SPLINE SCREWS IN GRADE 5 TITANIUM FOR THE BRIDGES AND CASE
This permits better control of the torque applied to the screws during assembly. These screws are
therefore unaffected by physical manipulation during assembly or disassembly and age well.
TOOTH SYSTEM OF BARREL AND THIRD-WHEEL PINION WITH CENTRAL INVOLUTE PROFILE
The wheel with a central developing profile and a pressure angle of 20° promotes rolling movement
more effectively, compensates differences between centers, ensures excellent torque transmission
and a distinct improvement in performance.
OTHER FEATURES
- -Center bridge in titanium
- Movement diameter: 38.95 mm
- Thickness: 8.12 mm
- Tourbillon diameter: 12.30 mm
- Diameter of the balance wheel: 10.00 mm
- Number of jewels: 38
- Balance wheel: in GLUCYDUR, 2 arms, 20 adjusting screws.
- Moment of inertia: 10 mg/cm2, lever angle 53°
- Frequency: 21,600 vph (3 Hz)
- Balance spring: ELINVAR by Nivarox
- Shock resistance: KIF Elastor KE 160 B28
- Barrel shaft: in chronifer without nickel (DIN x 46 Cr 13 + S),
which has the following characteristics : non-oxidizable – antimagnetic – hardened.
FINISHING
MOVEMENT
- Anglage and polishing by hand
- Locking sections hand polished
- Sapphire blasted milled sections
- Lapped and polished contact points
- Burnished pivots
STEEL PARTS
- Sapphire blasted surfaces
- Anglage and polishing by hand
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