Micro rotor scraping the inside of the caseback is, unfortunately, an all too common occurrence. It has to do with two things: 1) the strange anchoring system that universal employed with varying degrees of success and 2) watchmaker's unfamiliarity with these unusual movements and errors in servicing.
I'd pass on this watch. Looks like it is either a franken with a redial or a (formerly?) badly damaged watch with a redial.