Don't mind me, I'm just adding on to the pile of misery for posterity. It started as a tiny black spec just off of 12 o'clock, now its about half the size of yours and now its having a baby! It just seems to be an inherent flaw on some units that was never officially acknowledged. My watch was greymarket new old stock to begin with so a warranty repair or replacement was never on the cards. It sucks but I just have to live with it and avoid all light watch faces until the watch dies or the display becomes unusable. Havent seen this issue reported on the latest watches but if anyone else down the line is suffering from this issue and finds this post, just return it to the store if you can and/or swap units coz once it starts, its likely to get worse.
