It certainly needs a service based on the condition of the case back gasket alone. I don't see wear on the weight from it rubbing, so likely the axle and jewels are good. Although you can't tell the true state of a movement from just one photo, often you can spot enough to call the watch a pass, but on this one it looks in good shape for these old bumper movements. Since many parts on these are discontinued, it's certainly worth asking the question.
Cheers, Al
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