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Richard Mille - RM 50-04 Tourbillon Split Seconds Chronograph Kimi Raikkonen

On the occasion of the Singapore Formula 1 Grand Prix on September 22, Richard Mille and its partners launched the RM 50-04 Tourbillon Double Split Seconds Chronograph Kimi Raikkonen.

With this new exclusive timepiece, the Swiss brand pays tribute to the F1 world champion and his current Alfa Romeo team.

The extremely sophisticated RM 50-04 caliber developed exclusively for this model features a split-seconds chronograph tourbillon and a grade 5 titanium and carbon TPT movement, weighing just 7 grams thanks to its fine skeletonisation.

Combining these complexities into a mechanism requires perfect energy transfer to ensure trouble-free operation. To reduce friction, the research team modified the tooth profile on the barrel and the pinion on the second wheel.

This high-tech movement is equipped with the latest generation split-seconds mechanism developed by Richard Mille engineers.

The new column wheel operates the different levers of the split-seconds function and optimizes the operation of the chronograph. While previous Richard Mille chronographs had traditionally featured 8-column wheels, the RM 50-04 is equipped with wheels that are now only 6-column to ensure optimized synchronized movements, maximum functional locking and greater adjustment durability.

The case measures 44.50 x 49.65 x 16.10 mm and is made of Quartz TPT and Carbon TPT in the same colors as the Alfa Romeo C38 single-seater. The unique appearance of the white quartz TPT material is achieved by inserting 600 layers of silicon each 45 microns thick and impregnating them with a white matrix, which is then heated to 120 °C in an autoclave. This process gives the material an extremely high resistance-to-weight ratio, non-allergic properties and excellent UV resistance.

Developed by North Thin Ply Technology, this technology is also used in the Carbon TPT midlayer, but this time in carbon fiber.

Red is also evident inside the movement, notably on the carbon TPT flange, chrono counters, and power reserve, torque and function indicators.

The grade 5 titanium dial also contains the number 7 that Kimi wears in competition. The combination of these technical solutions endows this complex part with exceptional resistance and has been tested in-house at 5,000 g.

The 70-hour power-reserve indicator at 11 o'clock is visually balanced by the torque indicator at 2 o'clock, which provides information on the tension of the mainspring to optimize the movement's timekeeping functions. Below 53 Nmm (Newton millimeters), the spring is considered too slack, while above 65 Nmm, excessive spring tension can adversely affect, or actually jeopardize, the operation of the mechanism.

Similar to a car transmission, a function indicator at 4 o'clock allows winding (W), neutral (N) and hand setting (H) positions to be seen when the crown is pulled out.

The Richard Mille RM 50-04 Tourbillon Split Seconds Chronograph Kimi Raikkonen is water resistant to 50 meters/165 feet thanks to two nitrile O-ring seals.