Okay so it happened to my watch as well and this I think was due to say oils while cooking etc and it was weird!!! When at times I cooked with the Apple Watch day a stir fry or so and drops of oil would fly on it it all started from there!
Anyways some else went wrong with my watch and apple did not have a replacement ( hermes series 4 ) so they landed up giving me a brand new retail watch after 10 months which is just amazing of apple!!!
Anyways some else went wrong with my watch and apple did not have a replacement ( hermes series 4 ) so they landed up giving me a brand new retail watch after 10 months which is just amazing of apple!!!