Watch case

This is more of a manufacturing than a support problem. However, if you would like to have the watch resurfaced or restored a qualified jeweler should be able to acid wash and plate it for you. It depends on the value of the watch (monetary or sentimental) and how much you're willing to spend. I wouldn't expect plating to run much more than $150 but you'll want to make sure you're clear on the end result (shiny, brushed finish, tinted, etc.).