ONE OF THE MOST COMPLEX OBJECTS EVER MADE
A superlative chronograph, the RM 008-V2 pairs a tourbillon with a split-seconds mechanism and was the first new split-seconds chronograph design of the 21th century.
Since its creation in 2003, the RM 008-V2 continues to warrant its claim as one of the most complicated watches in the collection.
The RM 008 incorporates all the characteristics of the RM 004 split-seconds chronograph, to which we added a tourbillon carriage comprising 85 parts and weighing just a third of a gram (0.34 g). Assembly and adjustment of this component alone requires several months to complete.
These two complex features demand advanced technical prowess.
RM 008-V2 TOURBILLON CHRONOGRAPH
SPLIT-SECONDS CHRONOGRAPH WITH IMPROVED PERFORMANCE
The modern architecture of this movement promotes a coherent and rational arrangement of each constituent part, avoiding unnecessary complexity and permitting the best possible use of the functions thanks to technical solutions. For example, research was conducted into the geometric design of the column wheels that control the different levers, in order to ensure the perfect, long-term, stable and simultaneous functioning of the chronograph mechanism, a feature essential to any high-performance chronograph.
Furthermore, the development of a new generation of split-seconds components has lowered the energy consumption of this function by as much as 50% by reducing friction on the spindle. Like the prevention of jumping in the chronograph seconds hand, this was achieved by research focused on the working of the split-seconds arms.
Located on a scale at 11 o’clock, the power-reserve indicator shows the number of hours of energy left in the mainspring before the watch must be wound again.
This indicator supplies information about the mainspring’s tension, thus permitting optimisation of the movement’s chronometric functioning. Below 5.3 N.mm, the spring is considered too slack, while above 6.5 N.mm, excess tension in the spring can adversely affect the mechanism’s operation, or actually endanger it.
Movement dimensions: 30.20 x 28.60 mm
Thickness: 7.53 mm
Tourbillon diameter: 12.30 mm
Balance wheel diameter: 10.00 mm
Number of jewels: 31
Balance wheel: Glucydur®, 2 arms, 4 setting screws, moment of inertia 10 mg•cm2, angle of lift 53°
Frequency: 21,600 vph (3 Hz)
Balance spring: elinvar by Nivarox®
Shock protection: KIF Elastor KE 160 B28
Barrel shaft: nickel-free Chronifer® (DIN x 46 Cr 13 + S) with the following characteristics: stainless – antimagnetic – suitable for tempering