Richard Mille’s $2 million dollar RM56-02 Sapphire Tourbillon features a transparent case made from sapphire crystal so that every last screw is on view, including the cable-suspended movement featured in Rafael Nadal’s RM27-01 watch.

Richard Mille’s $2 million dollar RM56-02 Sapphire Tourbillon features a transparent case made from sapphire crystal so that every last screw is on view, including the cable-suspended movement featured in Rafael Nadal’s RM27-01 watch.

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