Could this be my new watch?

So I have been scouring the web and I came across these two. I believe the Raketa Perpetual Calendar looks to be authentic after seeing other prime expamples. :think: But the Raketa Big Zero is one that seems to still give me a hard time. :-s I need to do more homework that is for sure.

I don't have either in my collection but would I would not mind either. These two seem to be from the 90s, correct me if I am wrong. As always I welcome yours feedback.