… with that stunning color change from its original cobalt blue to this charming purple color.
I also own a Submariner 16808 serial R circa 1987 with a similar color change.
It is probable that your watch is also from same era as I was told that it was due to a failure in the lacquer sealing the paint used in dials of that period.
In any case the result is fantastic specially when viewed under open sunlight.
Keep enjoying and loving your gold sub!
Cheers! Abel
PS: Mine says hello!!