Well, the case has been poorly “aged” you don’t get scratches like that naturally. As mentioned before the fixed springbars should be a flush tight fit. They don’t look it, are they loose?
Good news is the movement is a gen ETA 2824-2. The rotor is a mis-match though and a little grubby. It really should be silver to match the rest of the movement. The 2824-2 movement itself has a higher beat rate than what would be period correct, an ETA 2846 would have been a better choice.
Unfortunately, judging from the shots, it looks like you paid a little more than the watch is probably worth. Here's a build – by no means perfect – I sold in 2016, to give feel for the market:
Here’s a link for details about your 2824-2 movement:
http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&ETA_2824_2