Bought this from a panel member in non-working condition. It had a broken mainspring and some rust. After installing a new mainspring and crystal, and a thorough cleaning, oiling, and regulating, it is running beautifully. UPDATE: I have outfitted this piece with the correct hands and a band that more closely matches the original.
The serial numbers usually start with the year within the decade. For instance the 6 at the beginning of the one you just posted would indicate 1946 probably.
That being said its very common to have the case and movement be a year or two off. Your case here showing a 3 would mean the movement was made in 1941, the case in '43. Probably put together in '43.
So I think you put them back together correctly.
Night Hawk may also be an option.
Here's snippet from 1941 ad above, next to subject watch:
Below, two 1942 ads for Night Hawk
Subject watch date 1943 based on case SN.
All three ads show (or state) radiun hands/dial. I don't remember if Air Warden ads show/state radiaum? I think most of the examples of Warden in DB have radium.
Is that a trace of radium left on subject dial at the 5 and 7 numerals???
I'm thinking Nighthawk. Even if the Radium has been removed, the dial remains somewhat radioactive. Radium would have been extremely common in the 1940's.
I did extensive research into the whole Radium history, and it turns up on clock dials and clock radio/alarms as late as 1978. Watches, however, phased it out and it is rare to encounter it much past the early 60's. This is despite the fact that it was known as a hazard and carcinogen since the 20's, possibly earlier.
Yup. The sad thing is the factory workers didn't know it was harmful, but the managers and scientists at the factories did. it is one of the lasting examples of workforce abuse. See "Radium Girls."
I purchased some proper hands so as soon as they arrive the watch will be back to its original hands. Additionally i purchased a band that matches the ad.