These watches are not so well known but, the one below is not a redial - it's a cal 1020. The "Automatic" is under the "Omega" writing so, I wouldn't use that as a check.
Agree that the one you're showing is an obvious redial and that the OPs watch is not. Note that the OPs watch shows a straight sided M in "Automatic" which appears to be another variation but, I'd still consider it an original dial.
Regards, Chris
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