Rolex. An exceptionally rare and possibly unique 18K gold chronograph wristwatch with tropical lemon dial and white numerals inside the subsidiary dials SIGNED ROLEX, COSMOGRAPH, DAYTONA, PAUL NEWMAN MODEL, REF. 6264, CASE NO. 2&#x27;357&#x27;384, CIRCA 1970 Price realised CHF 583,500 Estimate CHF 500,000 - CHF 800,000