Some of the subdial white margin look like unpainted/uncoated portion left by Omega and others are not real and due to lighting as I look at it putting a light to it. It's not visible looking directly at the dial and needs a steep angle to notice.
As mentioned above only 1 of those on the hesalite is real and rest was removable dust. Upon closer inspection the persistent one at 730 I think may be a small nick and not dust as it's actually a circle with a clear center (think of it as of hitting a sharp point). I can't tell for sure but it seems to be on the inside as I can't feel it. I've already scratched the hesalite minimally today with light use. If it was sapphire I'd like it fixed but I consider it a wear and tear item being hesalite and it will be replaced in 5 years.
The subdial part doesn't bother me as the rest of the watch has a faux patina on it. Hell maybe even those were added for effect for all I know. If it wasn't a patina watch I may be inclined to do something about it but I'm not. Still enjoy looking at it.
😀