I have geiger the watch , no radiation.
So it must be tritium ( Tritium, you can not measure with a normal geiger counter)
Al the gilt tekst is print under the Lacquer, and the OCC ( printed in silver) up the lacquer.
So the T swiss T is not printed later on the dail like the underline.
This 6610 is from IV 61, so it is a very late one.
So i think it is the laast serie dial for the 6610, or first serie service dial.
Cheers,
Bas.nl
This message has been edited by B.7924 from IP address 83.215.67.68 on Feb 25, 2012 1:51 PM This message has been edited by B.7924 from IP address 83.215.67.68 on Feb 25, 2012 9:34 AM