Firstly, your logic isn't following.
Your logic:
Step 1: Look for "swiss" mark. If it is absent, continue to scrutinize.
Step 2: Observe other details of dial.
Observation: All else looks original.
Conclusion: Must be a redial(?!)
It wouldn't be your first step - it would be your only step. Which is flawed logic because examples exist without "swiss".
You can't tell me after owning three or four examples or seeing a few more beyond that of the hundreds of thousands made that you have any degree of confidence in anything. The internet is a far more powerful tool than your collection will ever be.
Sala's book is not scripture, as many tend to believe. I have his book. There are redials in there. And there are mountains of references that are not listed. So let's just put that out there, before I even go looking through the references.
bub838 - I noticed the "60" marker, too, in the left subdial. It is possible that it was retouched there due to fading. Perhaps by the factory, considering the tolerances are so fine. But yes, that is a fair point.
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