Luxury supercar maker McLaren Automotive and Richard Mille, entering the fifth year of their ongoing partnership, have revealed their latest collaboration to date - the RM 40-01 Automatic Tourbillon McLaren Speedtail.

As the name suggests, this remarkable and unique watch honours the fastest, most advanced and most exotic road car McLaren has yet produced - the futuristic looking Speedtail.

Based on the form of a teardrop, the most aerodynamically efficient shape found in nature, the Speedtail is the apotheosis of the streamlined hypercar, a three-seat hyper grand tourer that became the third car in McLaren's Ultimate line-up.

With its 1,070-horsepower hybrid powertrain, the Speedtail covers 112 metres per second when travelling at its top speed of 250mph/402kph, making it the fastest McLaren road car to date.

McLaren's relentless pursuit of aerodynamic efficiency provided the starting point for the design of the RM 40-01 Automatic Tourbillon McLaren Speedtail.

"There are many similarities between the way that Richard Mille and McLaren approach common design and engineering challenges, such as saving weight, reducing vibrational impact and minimising resistance, “ said Rob Melville, McLaren Automotive’s design director, with the new RM 40-01 perfectly demonstrating why the two brands make ideal partners.

He continued: “When it came to the RM 40-01, we had considerable input in sharing the highlights of the car and the philosophy behind it. With the Speedtail, we set out to produce a car that had an artistic quality to it. That has certainly come through in the watch, which beautifully mirrors the many various details of the Speedtail in its finish, materials and its uncompromising design.”

It took Richard Mille's casing department, led by Technical Director Julien Boillat, an unprecedented 2,800 hours over 18 months to perfect the lines.

Like the Speedtail on which its based, the watch’s lines mimic the form of a water droplet while bezel indentations evoke the bonnet openings, and pushers that recall the air outlets behind the front wheels.

“As well as taking inspiration from the teardrop shape of the Speedtail, we also faced the challenge of seamlessly combining existing Richard Mille cues with those of McLaren,” explained Boillat.

“The watch has one of the highest levels of finishing ever executed at Richard Mille. There has also been a lot of development with our anglers and polishers. The attention to detail is extreme, with mirror polished, plain and satinised effects in different areas and the combined use of titanium and Carbon TPT. The case itself is made from 69 individual parts.”

Due to the unprecedented complexity of the design, five prototypes were created before the optimum shape was achieved. The challenge lay in the fact that the case is significantly wider at 12 o'clock than at 6 o'clock, with a further taper between the titanium bezel and case back, which are separated by a caseband made from Carbon TPT® and unequal length titanium pillars.

To protect the RM 40-01's state-of-the-art movement, Richard Mille developed a unique upper crystal featuring a 'triple contour' to account for the decreasing taper and thickness of the bezel. It alone took 18 months to perfect.

The strap is also a unique design, being asymmetrical and with the rubber version using Vulculor technology from Biwi SA, a special process that enables coloured rubber to be over-moulded - so allowing the iconic McLaren orange accent coloured stripe seen at 6 o'clock on the movement to extend to the wrist.

Despite the extraordinary anatomy of the case, Salvador Arbona, Richard Mille's Technical Director, Movement, created a horological 'engine' that seamlessly occupies all the available space and introduces a level of mechanical sophistication that makes the RM 40-01 Automatic Tourbillon an appropriately extraordinary companion to the Speedtail.

Grade 5 titanium has been used for key components such as the bridges, the bridge screws, the baseplate and the rotor core. The CRMT4 movement that drives the RM 40-01 introduces the mechanism’s first power reserve display as well as the oversize date and function selector complications, all of which are firsts at Richard Mille for an in-house tourbillon.

In the pursuit of perfection, three power reserve systems were developed before the definitive version was arrived at which is integrated into the watch.

To reflect the 106 McLaren Speedtails manufactured, 106 RM 40-01 Automatic Tourbillon McLaren Speedtail watches are planned. – TradeArabia News Service