Please consider donating to help offset our high running costs.
Some very early (58/59) models had full text (and chronometre spelling) and some very late models (62/63) had full text (with chronometer spelling)
But both are uncommon for this reference.
In between they shouldn’t have the full text dial.
And as above, always assume a black dial is a redial and then go about trying to prove it’s genuine, rather than the other way around.