Case size 26mm. X 33mm. 14mm. lug gape. Sterling silver case 10 K RGP. Blued hands and radium dial look original to the watch. Identical case to Air wardens/ Nighthawks in database, but note the fat, extended stem barrel, not seen in any others in DB, more like military watch stem barrel. Also the 10 AK is a known military used movement.
EDIT- This watch could possibly be the"Interceptor" model, as posted in May of this year by both Admin and fifthavenuerestorations in comments about another watch, "air Warden", also posted by me.
It could also be the "Apollo", as posted by NOVA in the same watch post.
posted by admin.
posted by fifth (Mark)
posted by NOVA. This ad may be the same one used by admin.

[E] AIR WARDEN

* note: The World War II era Military issue Bulova 10AK was 15 Jewels.
http://www.mybulova.com/watches/1942-military-1486
What about the stem barrel and hands? Hands can be changed I know, but not the stem barrel. I had one of these cases and the barrel is totally diferrent.
This ad is from 1946 too.Watch is 1943
I thought there was some debate previouslty about the Air Warden being a sweep second and not a sub second?
I don't remember that one, DW. All ads for Air Wardens have sub seconds dials, so that debate must be from before any of the A/W ads were found.
Rob,
I don't recall the debate and I've yet to see an ad showing the 'AIR WARDEN' with sweep Center Seconds, the interesting part of the ad above is it shows the 'AIR WARDEN' with the White Dial, a first.
Saw that ad in a post by NOVA a few weeks ago, but I never saw it get in the DB.
Sure looks like "air warden" in ad above, w/ diff hands and stem. 43 subject watch and 46 ad above, but I gotta check if there's other ads btwn those years before I add my ticks.
At the moment Air Warden would be my thought, but would be marked as tentative. There's a bit of a gap between 43 and 46.

We also have an ad in 1943 showing this as the Watertite if I recall. One of the new ads I got at the library.