How is the rest of the case, and has it been polished before?
If the rest of the case is unpolished and pleasing, then I would leave it "as-is". If the case shows evidence of polishing, I may have it repaired, and have the case refinished.
It all depends on the look you want, and what you want to do with the watch in he long run.
More pics of the watch as a whole will help people form their opinions.
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