Gents all I can say is wow... seriously. Holy moly... this thing almost shows NOS. It's that nice. Runs great... original bracelet... grea dial.. good glass... either this thing was kept in a climate controlled esc space or it's been totally overhauled recently. Either way... absolutely the nicest example of this model I've ever seen! Also... the watch is stamped on the outside with the Bulova and that bell type symbol of the mid-30's watches. No stamp inside. I'm now convinced that these are original cases and won't be swayed!
...there's the "Bulova and that bell type symbol..." Great watch. Nova has example from 1935 w/ the same bracelet and "shield-like symbol", however her's has a case serial number listed. Subject watch listed as no case serial number.
Plains, yours is gold plate. I have one which is 10K Gold Filled (natural yellow) and it also has the extra BULOVA without the bell-like symbol behind it. I see some gold filled and some plate.