Hi, I would appreciate a little help on this one very much!! Serial is 1206... so no Seamaster on the dial is correct? Lume dots on 7, 8 and 9 are replaced? Usually the dials show more aging, do you think this one is OK? Unmarked outer caseback is OK I think... Thanks for looking!
Without knowing this special model, I would think, that the dial is original. Some lume points and probably the lume of the hands have had a reluming, but otherwise, the dial seems to be correct for me. But I am no expert for this reference.
My 11.79m 2577-4 had no SM text, my 12.19m 2577-6 has the text so the one you show may well be early enough to be correct with no text as it falls in between, but I can't of course be certain. The hand lume is a lovely colour but I would say there has been some lume intervention on the dial there so all must be considered suspect. Still a nice looking SM though.