Eye Candy: Assemble Calibre CRMT4 in Richard Mille RM 40-01 automatic tourbillon McLaren Speedtail
The new Richard Mille RM 40-01 automatic tourbillon McLaren Speedtail was released yesterday, and this is the assembly process for its impressive CRMT4 movement. This movement is a self-winding tourbillon movement with hours, minutes, variable geometry oscillating weight, large date display, power reserve indicator and function selector. The new automatic movement architecture requires an astonishing 8,600 hours of development time, most of which is spent on completing the ultimate details. Grade 5 titanium has been used for key components such as bridges, bridge screws, base plates and rotor cores.
The CRMT4 movement introduces the complication of a power reserve display and a large date and function selector, all of which are the first of Richard Mille’s internal tourbillon. The wheels are machined with the McLaren logo and decorated on the Speedtail hood, while the dome parts introduce new surface contours required to transform the car’s curves. The movement measures 30.48 mm x 35.35 mm x 6.81 mm, includes 37 jewels, and is equipped with a free-spring balance with variable inertia. This type of balance wheel represents the ultimate in innovation. It guarantees higher reliability during shocks and the assembly or disassembly of the movement, resulting in better timing results over time. Elimination of the regulator index, due to the four small, can achieve more accurate and repeatable calibration.
The shell ring is no longer used, and the movement is mounted on the chassis and the rubber-ISO SW-is fixed by titanium screws. The variable geometry oscillating weight-the symbol of the fake Richard Mille automatic timepiece-is equipped with a platinum oscillating weight, the core is made of grade 5 titanium, and the counterweight is made of red gold. The platinum and red gold winding rotors are inspired by the McLaren Speedtail’s hood and the barrel setting of the roofline. The guide rail is made of black PVD treated metal, with ceramic ball bearings, and has a one-way automatic winding function.
This variable geometry rotor can adjust the winding function according to the owner’s activity level. The setting can be modified by adjusting the weight that can be slid into the correct position from the side and fixed in place by two spline screws. When the weight is close to the outer edge, the inertia of the movement is the best, so the winding speed of the barrel is faster. If the counterweight is in the center of the rotor, the inertia will decrease and the winding speed of the barrel will be slower.
Richard Mile RM 40-01 automatic tourbillon McLaren Speedtail can be summarized as five prototype developments, 8,600 hours of movement structure development, 672 components, 5000 g impact test and 18 months of new case shape development. On the movement Every part has been carefully crafted, including hand-polished angle steel, hand-polished step slope, micro-sand milling part, micro-sand groove, PVD treatment of plywood and plasma treatment of bottom plate.
The entire transmission chain of the buy replicas watch is the main power transmitter of the entire movement, and its gear teeth are specially contoured to ensure a 20-degree pressure angle. The system balances any differences that may occur between the centers of each wheel, such as those caused by thermal changes and normal use, and promotes the smooth transmission of torque to the balance wheel, thereby supporting excellent timing results. In addition, the use of grade 5 titanium spline screws for bridges and watch cases can better control the torque applied to the screws during assembly. These screws are not affected by physical operations during assembly or disassembly and are well aged.