Tennis player Rafael Nadal spotted wearing a Richard Mille

Rafael Nadal was spotted wearing the Richard Mille RM27-03 Tourbillon Rafael Nadal, the ultra-limited 50-piece collaboration that represents arguably the most technically ambitious wristwatch ever designed specifically for athletic use. The sighting underlines the genuine nature of the Nadal–Richard Mille partnership, now well over a decade old and responsible for some of the most consequential sports-watch engineering of the 21st century.

The Richard Mille RM27-03 houses a manually wound tourbillon calibre RMUL3, featuring a baseplate and bridges machined from grade 5 titanium and a barrel and escape wheel in carbon nanotubes. The defining engineering achievement, however, is the movement's suspension system: the entire calibre is held within the case by a tensioned cable arrangement, a direct response to the shock loads measured on Nadal's wrist during a serve — independently verified at over 10,000g. The NTPT Carbon case, constructed from layers of filament wound at 45-degree angles and then compressed under heat and pressure, measures just 18.35mm wide and tips the scale at under 19 grams complete with strap.

For collectors, the RM27-03 occupies a specific and serious position in the Richard Mille catalogue. It is not a tonneau-shaped fashion object — it is a documented engineering solution to a documented athletic problem. The 50-piece limitation is genuine rather than marketing, driven by the complexity of NTPT case production and hand-assembly of the cable suspension. Each of the previous RM27-series watches — the RM27-01 and RM27-02 — have appreciated dramatically at auction, establishing the sub-family as among the most liquid ultra-high-end references in the secondary market.

Nadal's relationship with Richard Mille began in 2010 and has been consistently hands-on, with the brand publicly documenting the testing process that informs each successive RM27 iteration. His wearing the watch on court, rather than in a marketing context alone, is the credibility that drives collector demand.

At a UK list price of £560,000 — approximately $700,000 USD at time of release — the Richard Mille RM27-03 entered the market as one of the most expensive production watches ever offered. On the grey market, confirmed sales have exceeded list price, and with only 50 examples in existence, open-market availability is extremely rare.