Rolex Daytona 'Zenith Inverted 6' Rolex and then set the hour

and then set the hour and minute hands the usual way

produced circa 1978

the red arrow hand points to the time on a 24-hour military scale

A contemporary to the Rolex 5512/13 series

Rolex Daytona 'Zenith Inverted 6' Rolex and then set the hourWe all know the Daytona Story, and it has proven to be a big favorite among the collectors. Why? Rolex's brilliant motorsports chronograph is in pole position in any category, vintage or modern. And while current automatic versions admittedly don't generally do as much for us as a nice hand cranking example, this particular iteration might be the exception to the rule. The timepiece you're looking at is a Reference 16520 Cosmograph, known among