I’d look to do a build — either an Athaya case, 3-piece case or take a stainless one and heat treat it to be bronze-ish. No perfect answer, just a managing bod expectations haha
Good call on that -- In fact, I think DSN had some un-PVD'ed cases he was selling for a period of time. Worse case scenario you could get it and strip it ...
I use bronze plating (1/3 of the chrome plating procedure) on many motorcycle parts that i know are in good condition many years now.
I also check bath accessories that has been bronze plated more than 15 years now and are fine too.
I 'm sure that you can find a counterpart workshop near you.
The only "secret" is to choose a good workshop for it.