It is a fact that dial shows some radiations level: 2,38 µSv/h. I have a Minerva from early 40s with radium indexes that shows more or less the same amount of radiations.
It is a fact that we are currently seeing at least two dials with exactly the same features, in watches with the same reference.
A radiation test is very important because with these results we can say - AT LEAST - that dial should not be touched after late '50s. Otherwise there should probably be tritium instead of radium that, as you for sure know, was replaced at the end (more or less) of 50's decade.
Yes, theoritically there is the possibility of a reprinted dial BEFORE that date, but you have to match this possibility with the fact that there are at least another one identical dial in the world. How many possibility there are, of a reprinted twin? Not so much I'd say, euphimistically speaking.
Given that facts, I'd say that dial is in my very humble opinion original, even if with not usual UG fonts and features. That said, I would really apologise with the owner of that nice watch:
@oinkitt
We don't know truth and it's always important to study and to undertand things that are not so clear, because they came from different ages. It's important, from a scientific point of view I'd say, to think about facts and not only ideas, and to change eventually your mind considering facts and not opinion.
I'd really like to see dial's back, maybe some day we'll be able to see it. In the meantime we discovered something new! It's always something that make us richer. Thank you!