Documented where? Can you cite your sources?
Not trying to be a pain, just genuinely interested. I've owned many Damaskos and always liked them, and I can't find anything with a quick google.
If you want a new watch, then I understand the question! But otherwise, I'd just stick your Damasko on a NATO and go.
Edir - OK, there's
THIS thread on WatchUSeek where someone has put some watch parts in a static salt bath for two weeks, and surprise surprise, there's some corrosion, especially in the tiny battery created by the different metal of the bracelet screw.
Meanwhile, in the bright sunshine, away from the dark cellars of the internet, people are wearing watches in the sea, having a shower afterwards, and enjoying the damn things. :)