Just resurrected this thread as I’ve come across another with the same dial and can’t find any info
The photo you posted is definitely a refinished dial (not Omega original), you can see the indices don’t line up with the minute markers. Is the other dial you found just the same watch, but listed by a different dealer? This is quite common in Japan.
If not, maybe the star at 10 has some symbolic meaning in Japan so multiple customers requested the dial be refinished as such.