16613 Bezel harder to turn after service

[ewdi]

I have a 1991 N 16613 from my father in law, it stopped working, so sent it to rolex service center in japan, came back fully overhauled, but after a while the bezel becomes really hard to turn (i actually use it a lot) and before service it was always easy to turn - I then returned it to RSC again, it got fixed, but after diving with it for a couple times, it becomes hard again to turn, anyone experience this with their old sub?

I feel like sending it in again would just be the same all over again, loose for a couple dive and then hard to turn again.

Thanks in advanced