So, I was in the garage working and I had totally forgot to remove my watch while trying to cut a bolt off of a car part with an angle grinder. I did everthing else (hearing protection, eye protection), but forgot the damn watch, stupid me. My wrist was not covered by my sweatshirt, and as I looked down in horror I saw my S5 getting pelted with bits of ground off, hot metal.
I took it off a minute later and noticed these black marks on the watch now. They seem to be bits of metal that have cooled to the coating of the watch. Some cleaning spray removed the dust, but some black spots are still there.
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Does anyone know how to polish these out of the ceramic? Otherwise I’ll have to wait until I somehow damage the watch to get a new one through AC+.