Tennis player Rafael Nadal spotted wearing a Richard Mille

Rafael Nadal opened his French Open campaign with a straight-sets victory over Quentin Halys, and while the scoreline drew attention on court, watch enthusiasts had their eyes locked on his left wrist — where the Richard Mille RM 27-02 Tourbillon made its competitive debut, worn throughout the match exactly as Richard Mille intended it to be used.

The RM 27-02 is one of the most technically audacious wristwatches ever produced. Its manually wound calibre RM 27-02 houses a tourbillon regulator within a case constructed from Richard Mille's proprietary NTPT Carbon — a material originally developed for America's Cup racing yacht masts, built from layers of carbon filament laid at 45-degree angles and compressed under heat. The result is a case of extraordinary rigidity and negligible mass. The complete watch tips the scale at just 3.35 grams, a figure that remains almost incomprehensible for a complications watch. The movement itself is suspended inside the case by a cable system — twelve braided steel cables tensioned to roughly 9 kilograms of force each — designed to absorb and dissipate the violent shock loads generated by a professional tennis serve.

The shock resistance specification of 5,000 Gs is not a marketing figure. Richard Mille subjected the calibre to rigorous testing, aware that Nadal's playing style — aggressive, physically punishing, with one of the heaviest forehands in professional tennis — would place real mechanical demands on any movement worn during competition. The RM 27-02 superseded the earlier RM 27-01, refining the cable suspension architecture and improving the tourbillon cage geometry for greater amplitude stability under impact.

Production was capped at 50 numbered pieces, making the RM 27-02 among the most restricted references in Richard Mille's Nadal collaboration lineage. Collectors regard these on-court tourbillon pieces — the RM 27 series in particular — as the definitive expression of the brand's engineering philosophy: function-first, weight-obsessed, and uncompromising in material specification. Seeing one worn by Nadal in actual match conditions at Roland Garros, the very tournament he has dominated for over a decade, is the closest thing the watch world has to provenance in real time.

At a UK retail price of approximately £550,000 — translating to roughly $700,000 USD at period exchange rates — the RM 27-02 occupies the extreme upper register of the primary market. On the secondary market, the 50-piece limitation and the Nadal association have driven values considerably higher, with confirmed auction results placing comparable RM 27-series examples well above their original retail figures.