Like my friend Detlev told me earlier today, maybe it's time to add a MK3 to the ROC's.
MK 1 for 6240 PN
MK 2 for 6263/6265 'Hidden Daytona' around 3 million serial PN
MK 3 for 6263/6265 all later PN's
Or the 'hidden & transitionals 3 millions' are MK 1.5
Many thanks Kevin for taking the time to check it out. I suggest everybody to use a loope,
and shine a lamp directly on the dial, then one will notice.