ORD CORPS watches are not often seen but in my experience the combination of stamping and engraving is ok for the Bulova. Elgins were fully stamped and Walthams - well they were a bit odd.
P.S. ZMW shows Bulova OF-542515
Thanks Martin. The only ones I had seen to date stated Bulova on the case back.
WW2 ORD DEPT Bulovas would have that marking. The ORD CORPS are nice watches - WW2 movements largely but nice chunky cases. Of course, now you quite often see the surplus WG and H-1917 cases with all sorts of movements in them.