I guess I didn't think about that. I'll change my reply.
If you want a correct series caseback for yourself, because the incorrect case bothers you then go for it. Hopefully the pictures of my gen caseback help you in your seach.
It maybe harder than you think. A Gen F series 111 has different PANERAI Font than most rep casebacks. If you do a search on my posts I took a picture of my case about a year ago as a reference. It was December 19th, 2008.
On another note, if you have the larger brushed crownguard then your caseback should be for a G series. Either way I would not worry about the correctness of your caseback if you have anything but a gen movement. If you were to give your watch to a risti, there will most likely be other things that they would notice before the serial number.
Probably not. Most if not all the reps are made in China. You can post a Wanted To Buy Ad and maybe someone in the US will sell to you. What part do you need?
I bought mine on ebay. It is older, because it has no engraving on the back of the case. The old cases are stainless steel. The new cases are plated brass. They are a pretty cool watch and it gets a lot of comments/compliments. Invicta also makes a very similar design that is probably much more practical for wear on a daily basis.
I agree, but his watch is not a "Tourist" model as sold on ebay now. His is a genuine article from the 60's or 70's. I saw a post on a Russian website a couple of years ago, where he had a strap custom made, he does however have a Invicta similar in design, but the invicta is smaller. The Zlatoust Diver is 60mm or so which this one has to be looking at the pic.
The case was probably really beat up at some point and the owner decided to have the outside brushed to hide all the scratches and dings. Over 50-60 years who knows what could have happened to that watch. Either way it's a great looking watch.
How close does the crown sit to the case? My guess is the stem is too long. I would think that any replacement crownguard will be the same specs as the one you have on the watch now.
I'd wait until your collection grows. Seems like there are really no long lasting cheap ones. You maybe able to find something in your range in Orbita which are nice. People debate whether watches wear faster on winders as well. Right now I just make sure I wear all my watches at least once a month.