I have to be honest and say I don't know much about these. Seems there are a few different 32.5 mm models. A very good local watch collector/dealer sold me this watch saying that I really should buy it.
It is ref 4461, these watches just rarely in 10 years show up. A couple have been available recently though. 



Well here it is, it's ugly, but running fine. A rarely seen and most likely early WW2 period aviation watch possibly designed by P.V.H. Weems