Rolex Daytona Steel 116520 Black Dial Box and Papers setThe in house revolutionIn 2000 Rolex introduced their first fully in house chronograph movement, the calibre 4130 with the launch of the 116520 Daytona. The now discontinued reference 116520 has recently become highly sought after by collectors and this full set example is about as good as it gets. This black dial example remains in outstanding condition with a strong case and perfect condition dial. The watch is accompanied by the original USA