With this dial, this is probably the Fifty Fathoms which is the closest to the competitor of the era, the Rolex Submariner. Compared to the other Fifty Fathoms, 3 / 6 / 9 / 12, Milspecs, Barakuda, No Rad or Assymetric cases, this is, in my opinion, the " ...
as to which one between the RI and 3/6/9 dial - I think I would opt for a 3/6/9....BUT, those 2 little words Rotomatic Incabloc on any dial would be perfect for me!!! Looks great on the collection of documentation! cheers Tony