If that's a 14700 case, I had one with a black dial and a bracelet that I wish I still had. Since then, though, I bought a Watcho Seamaster 300, so I pine less for a 14700. Tom
Here is one I picked up a few months ago, based on a single picture without any other details besides it being a 1950's Seamaster It's a 2990 and the dial is a bit rough, but original. A basic service and it is running like a champ.
The common parlance for these is "Seamaster Ranchero" and were, I believe concurrent with the Ranchero. Pic of mine later