zOwie Omega Discussion Forum

If you scratch the crystal, you are playing with some pretty hard stuff. On a hardness scale, sapphire is one step below diamond. Sapphire is twice as hard as the mineral below it (topaz). Quartz, is below that which is found alot in sand, but unless you are going to be on a beach of sapphires and diamonds, your crystal should be fine...that said, the AR coating may get scuffed up a bit. I believe I have seen posts, possibly by John R or Keith (guessing) saying you could tak your watch to a competent watch maker and have them take the outside AR coating of so the crystal would not appear scratched.