Very welcome to post such an impressive collection of Zeniths Lou!

I like them all, I just wish their cases spoke more to me. With the exception of the third watch, with its case references to Carrera and Speedmaster, the cases are all very much of their time and, for me at least, haven't aged well. So thumbs up for the rest of the watch, some great dial work, I have always liked the three-colour register models, but it then all hinges on the case and that's where the deal breaks down for me.

So I kind of end up liking them despite the case, so always with reservation. No reservations on that third watch though, very nice!