RICHARD MILLE RM 65-01 Automatic Split-Seconds Chronograph

Richard Mille is presenting the RM 65-01 Automatic Split-Seconds Chronograph Pastel Blue Quartz TPT and the RM 65-01 Automatic Split-Seconds Chronograph Dark Yellow Quartz TPT, two new executions of its high-frequency rattrapante chronograph.
The first model comes in a case crafted of pastel blue Quartz TPT and will join the collection. The second version, issued in a limited edition of 120 pieces, features a dark yellow Quartz TPT. Measuring 44.50 x 49.94 x 16.10 mm and water resistant to 50 metres / 165 feet, their tripartite cases frame skeletonised dials that stand out for the use of vibrant colours to enhance legibility despite numerous indications. Each colour is associated with a function on the dial, thereby enhancing ease of reading. This colour code is shared with the pushers and crown.
Bezel, caseband and caseback are crafted from Quartz TPT, developed by NTPT (North Thin Ply Technology), a composite material made of multiple layers of silica fibres, saturated with resins specially developed for Richard Mille and heated to 120° at a pressure of 6 bars. The result is not only aesthetically pleasing but also remarkable for its extreme resistance. The large crown in microblasted, polished and satin-finished Grade 5 titanium is framed by the chronograph buttons, also in polished and satin-finished Grade 5 titanium. The same material and finish are used for the plate engraved with RM 65-01 on the caseband. The rapid-winding pusher at 8 o’clock stands out with its red or blue Quartz TPT button.
Pressing this pusher 125 times fully winds the barrel, ensuring a power reserve of up to 60 hours (without the chronograph running). This practical and ‘playful’ function was challenging to develop due to its high torque transfer. During the ageing tests, the function was activated thousands of times.

Equipped with a six-column wheel, the calibre RMAC4 features a high-frequency balance with variable inertia, oscillating at 36,000 vibrations per hour with stopwatch calculations to 1/10th of a second. The function selector on the crown enables the wearer to switch quickly from traditional
winding mode (W) to setting the semi-instantaneous date (D) or the hours and minutes (H). The RM 65-01 uses a variable geometry to optimise the rotor’s winding motion. By adjusting the 3-position weight, the rotor’s inertia can be adjusted to either speed up the winding process in the case of leisurely arm movements, or to slow it down during sporting activities. The new models add to the other RM 65-01 versions in Red Gold, Titanium, Grey Quartz TPT and Carbon TPT.