RM 027
RM 027
RM 027

Men's collection

RM 027

TOURBILLON - RAFAEL NADAL

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PUSHING THE LIMITS

A high-level world-class tennis match can sometimes last for five hours, even more.
The idea here was to bring a tourbillon into the arena that was capable of withstanding the shocks incurred for hours on end on clay courts, which can involve forces of several hundred G, while remaining totally comfortable and ridiculously lightweight : less than 20 grams. A real challenge for any tourbillon movement. Our existing designs in high-performance mechanics had to be entirely rethought and retested.

Main characteristics

The whole of its mechanical architecture, weighting just 3.8 grams, was skilfully designed and constructed in taut suspension on a network of shock absorbers anchored in the thickness of the case. Available in carbon.

Limited edition of 50 pieces.

01
CALIBER RM 027
Manual winding tourbillon movement with hours and minutes.

WEIGHT OF THE WATCH WITHOUT STRAP circa 13 g

02
CALIBER RM 027
Manual winding tourbillon movement with hours and minutes.

POWER RESERVE 48 Hours

03
CALIBER RM 027
Manual winding tourbillon movement with hours and minutes.

WEIGHT OF THE MOVEMENT 3.83 g


04
CALIBER RM 027
Manual winding tourbillon movement with hours and minutes.

CALIBER RM 027 Manual winding tourbillon movement with hours and minutes.

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Approximate scale 1 : 1

Main characteristics

The whole of its mechanical architecture, weighting just 3.8 grams, was skilfully designed and constructed in taut suspension on a network of shock absorbers anchored in the thickness of the case. Available in carbon.

Limited edition of 50 pieces.

CASE

The RM 027 watchcase, composed of a composite containing large amounts of carbon, provides a tough and resilient enclosure for the tourbillon movement at its center. The back bezel and caseband are monobloc to ensure total lightness. The glass, with anti-glare treatment, has remarkable properties of stiffness and torsional rigidity.

CASE

The RM 027 watchcase, composed of a composite containing large amounts of carbon, provides a tough and resilient enclosure for the tourbillon movement at its center. The back bezel and caseband are monobloc to ensure total lightness. The glass, with anti-glare treatment, has remarkable properties of stiffness and torsional rigidity.

SPLINE SCREWS IN GRADE 5 TITANIUM

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.

TITANIUM BASEPLATE WITH BRIDGES OF ALUMINUM LITHIUM

The movement of the RM 027 Tourbillon is made from titanium and LITAL® alloy, a high lithium content alloy containing aluminium, copper, magnesium and zirconium, possessing a density of 2.55 g cm3. The addition of Lithium provides to the mechanism more flexibility and greater shock resistance. This alloy is also applied in aerospace on the Airbus A380, helicopters, rockets, satellites as well as in Formula 1.

TITANIUM BASEPLATE WITH BRIDGES OF ALUMINUM LITHIUM

The movement of the RM 027 Tourbillon is made from titanium and LITAL® alloy, a high lithium content alloy containing aluminium, copper, magnesium and zirconium, possessing a density of 2.55 g cm3. The addition of Lithium provides to the mechanism more flexibility and greater shock resistance. This alloy is also applied in aerospace on the Airbus A380, helicopters, rockets, satellites as well as in Formula 1.

VARIABLE INERTIA, FREE SPRUNG BALANCE

The free-sprung balance gives better reliability in the event of shocks, movement assembly and disassembly, and also guarantees better chronometric results over an extended period of time.

Characteristics

WINDING BARREL TEETH AND THIRD-WHEEL PINION WITH CENTRAL INVOLUTE PROFILE
The central involute profile of the winding barrel teeth and pinion provide an optimal pressure angle of 20°. This promotes effective rotary motion and allows for compensation of possible variations in the engagement of the going train, thus insuring excellent torque transmission with a distinct improvement in performance.

FAST ROTATING BARREL (6 hours per revolution instead of 7.5)
This type of barrel provides the following advantages:

- The phenomenon of periodic internal mainspring adhesion is significantly diminished, thereby increasing performance

- Provision of an excellent mainspring delta curve with an ideal power reserve/performance and regularity ratio

BARREL PAWL WITH PROGRESSIVE RECOIL
This device permits an appreciable winding gain (circa 20 %), especially during the start of winding. It also promotes the even distribution of the mainspring’s internal tension.

OTHER FEATURES
- Movement dimensions: 30.20 x 28.80 mm
- Thickness: 7.00 mm
- Tourbillon diameter: 10.90 mm
- Balance wheel diameter: 9.12 mm
- Number of jewels: 19
- Balance: GLUCYDUR, 2 arms, 4 setting screws
- Inertia moment 11.50 mg.cm2, angle of lift 53o
- Frequency: 21,600 vph (3 Hz)
- Balance spring: ELINVAR by NIVAROX
- Shock protection: KIF ELAS