I am contemplating getting my 50th Anniv. Submariner Green Bezel PVD'd in a semi gloss black or just black in general. I have done some research and seen pictures of them done, but don't actually know what steps to take to get it done. Does anyone on here know who can do this PVD coating that I can trust with a Rolex? Also, how much does this type of work cost normally, and what is the turn around time? Any help will be much appreciated, as I think it will make for a unique timepiece.