Omega Seamaster De Ville first edition inverted writing

I recently acquired this Omega Seamaster Deville. The watch is in excellent condition, but one detail caught my attention: the DeVille writing is above the Seamaster writing. I haven't seen any watch with this arrangement. The dial has no sign of restoration. Perhaps a small departure of dials were made with this writing arrangement. I think this because the style of the letter S is that of the 59 and 60s, the same year as this watch. The position of the Seamaster writing is the same as on dials that do not have the De Ville writing. I believe that because it is a transitional model, the same dial cliché was used and, as there was no space for the writing De Ville below the Seamaster, it was written above the Seamaster.
What do you think about this watch?