Re: IP/PVD coatings...HELP!!!!!
Welcome to WUS! Depends on the manufacturer and watch knowsnothing...they all have similar processes, but some are better than others. This is my experience with PVD/IP/DLC: You're going to get what you pay for. The Nighthawk in question will scratch (ie reach inside a metal filing cabinet)....then it will show silver....add that up over 6 months and what do you have? If you baby your watches then your most likely safe.
IMO if you want a black metal watch to last your best bet is either Casio's MRG line or Citizens DLC models. They can be pricey. There are a few modders here that use various ceramic and PVD coatings and they say they hold up quite well. I'm not familiar with these aftermarket coatings at all.
"You've stolen my heart, yes You have, You've wiped away the stains, broke away the chains, yes You have!" Leeland †