The best thing to do is when you get the watch wear it for a week. See how it keeps time.
If is a running a few seconds off +/- 10 seconds there is no need to service.
Share a few pictures with us here we will share our thoughts on what course of action to take.
You may just need a new crystal and she will look great.
The charm of Rolex is the life the watch has lived.
Don't rush to restore.
Bill