Richard Mille RM 008-V2 Tourbillon Split Seconds Chronograph Watch
The modern architecture of the RM 008-V2s movement has allowed for the consistent
and rational arrangement of its constituent parts, avoiding unnecessary superimpositions and permitting the best possible use of the functions with technical solutions. For example, research was conducted into the geometric design of the column wheel that controls the different levers to ensure the perfect, long-term simultaneity of the functions, a feature that is essential for a high performance chronometer. This design was implemented in order to achieve a high degree of continuity in setting, combined with an unfailing repeatability of the various functions.One of the new characteristics developed for the RM 008-V2 is the virtually complete elimination of initial jumping in the chronograph seconds hand. A great number of studies led to the design and manufacture of gear wheels and levers in titanium, thus reducing inertia. Moreover, the development of a new generation of split seconds components meant that energy consumption could be lowered by approximately 50% by reducing friction on the spindle, as well as eliminating the effect of jumping when stopping, thanks in particular to research that focused on the working of the split seconds arms.
There a numerous other features offered by the RM 008-V2, some of which are detailed here under:
TORQUE INDICATOR
This indicator supplies information about the tension of the mainspring, and allows the optimalization of the chronometric functioning of the movement. Below 53 dNmm, the spring is considered to be too slack, while above 65 dNmm, the excessive spring tension can adversely affect the mechanism's operation, or else actually endanger it. These indications appear on the numerical zone to the right of the barrel.
BALANCE WHEEL WITH VARIABLE INERTIA
This type of balance wheel, which represents the ultimate in innovation, guarantees greater reliability when subjected to shock and also during assembly and dismantling of the movement, thus achieving better chronometric results over time. The index is eliminated, thereby allowing a more precise and repeatable adjustment.
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 aids in the even distribution of the mainspring's internal tension.
BALANCE SPRING
Developed in the 18th century, perfected and codified in the 19th, the specially calculated curvature of the balance spring provides excellent chronometric results in tourbillon escapements.
CLOSURE OF THE BARREL COVER USING EXCENTRIC SCREWS
This development is again part of the intention to make servicing easy, logical, and of a very high mechanical standard.
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.
TEETH 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.
Richard Mille RM 008-V2 Tourbillon Split Seconds Chronograph Technical Specifications
Movement CALIBER RM 008-1: Manual winding movement with hours, minutes, chronograph, split seconds, 30 minute totalizer, power reserve indicator, torque indicator, function indicator.
Dimensions 30.20 x 28.60 mm
Thickness 8.90 mm
Number of jewels 38
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 Polished by hand
Richard Mille RM 008-V2 Tourbillon Split Seconds Chronograph Watch
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