It’s probably a euro watch. It has an extra complication on it, can’t tell from the photos, could be a wind indicator or a calender function :
Personally, I would veer clear of it, especially if it’s broken, and especially if your experience with complicated watches is minimal.
Finding parts for early Swiss/euro watches is veeery difficult, if not impossible..You are already having problems finding out what it is, so you can imagine how hard it will be to find parts..
Many of the early euro watches were not produced by automated means, mostly in a production line of many individual watchmakers who made parts by hand, during a time when most craftsmen actually could make their parts on site.. So each part is never identical to it’s brother watch..
Not saying that is the case with this one, but I simply don’t know. There were millions of watches made by well known and obscure companies..
You might have some luck on the NAWCC forum, there are many Swiss watch collectors there with much knowledge..