Opinions on Protective film for watch/clasp?

[Ferrari-F430]

I have never done this before, but I do have PPF on most of my cars and I know that protective film can be amazing as long as the quality is there.

I'm curious to hear what other watch owners who have done it or have thought about using protective film on the clasp to protect from scratches? Now I know that some have done the whole watch as I've seen them on Youtube, but that is definitely not for me.. just the clasp and preventing it from getting the normal scratches is what I am thinking of doing.

Any feedback would be great! This would be for a late model Submariner clasp FYI, if that matters.

Thanks!