Watch is in same used condition as when purchased; although I may have had it serviced...don't recall. I'm posting because there is no 10BA ss movement listed here...that I could find... and to learn if this model finally has a name.
![[1943 10BAss] Bulova Air Warden](/sites/default/files/watches/10bass-mov-234kb-130418-9190.jpg)
The 10BA and 10BAC are both from the ETA 900 ebauche. Technically, this example should have been stamped 10BAC but was modded specifically for Military use. It's not a Military contract watch, but clearly could be used as such and may have been available in kit shops.
Stainless back is standard, but Sterling with gold fill is a bit unusual, called Vermeil.
Looks like an Air Warden to me...
While the Air Warden and the Medico appear to use the exact same case from 1942-1949, there is a defining difference. The Air Warden uses a 15 jewel movement with a small seconds. The Medico uses a 17 jewel movement with a sweep seconds. All of the ads for both the Air Warden and Medico support these distinctions.