I think the dial was subjected to a very harsh cleaning that removed the original lacquer and some of the printing. It looks original otherwise.
It is not possible to restore just the missing parts, only remedy would be to refinish the dial. This would hurt the collector value. You could take it to a watchmaker who knows about dials and if the top lacquer is still missing, that can be restored to protect the remaining printing.
It's still a nice watch in pretty good condition aside from the dial. I would recommend leaving it alone.
gatorcpa
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