Posh,
I would drop by a Panerai AD. I actually posted an "I get it now" thread after I did so. I tried on a genuine 112, a Ferrari and a 289. The moment I tried it on, I got it. I love the contrast of the watch. It's a rugged yet elegant simplicity. Do I believe that they are a variation on a theme, yes I do. But I also believe that their story (Italian Royal Navy) dictates the design. Again, as you pointed out with the DeWitt, history explains the present.
I think a lot of forum members have felt that way. Once they try it on, they like it. Whether it's a PAM or a Patek. I do believe this is an underlying point of your post, as well. Let's give something else a try. Right? So, go try on a Panerai and let us know what you think.
Maybe I'll take my own advise and try a Hublot. I just don't get Hublot.
R