I bid on a relic Seamaster DeVille at one of Goodwill's Ebay auctions hoping to salvage the back case and crown. It at least still had all four the lugs attached but the gold layer of these was partly stripped away.
The watch looked like it had been salvaged from a airplane crash at sea, and a bad one at that. Crystal shattered, wrist band ripped to pieces, case and dial badly beat up, and it must have continued to run for a few minutes because the hands were twisted into coils before being wrung off the shafts. Looked like sea life had taken root inside.
I stopped bidding at $70 , the case just looked too sad to be sure I could use any part of it. Some bidders must have got into a war over this one because IIRC the final bid was over $750 USD.
No way there were enough salvageable parts to be worth that.