I recently obtained a used Sinn 142. The watch is in pretty good shape, but there are a few scratches to the outside AR coating. This 142 was sold in 200. Question: Is the AR coating easily scratchable? I.e. I am considering having it recoated, but not if it will scratch easily.
I have one other watch with external AR coating, but it's flawless after several years (but it's more of a dress watch so it hasn't seen combat).
Thank you in advance,