*1923 Manufacture Date is based upon the Case seriel number.
In reply to haha, I knew You'd like that by FifthAvenueRes…
Seems to me like the brigade level (several companies combine to make a Brigade) maintenance were required to keep the 'official time' with an 8 day clock...one of our ORD Tm's mentions calibrating watches to the 8 day clock....maybe this is it???
Agree it could still be aviation, I only meant that IF it had a magnet, it would not be aviation use.
In reply to You may never find a stem, by shooter144
I can ask my guy ( 80 some yr old trained by Seiko in the '40's ) who I know can do it but dont know if he will, hes kinda grumpy and mostly retired lol but he has made me some precision micro stuff un related to watches (steel pinion gears for rc cars and some titanium controll rods for same)
My first impression is that it's a typical car clock. I've serviced quite a few of these, and they are always in bad shape. After being in a car dash (You would lift it out of it's socket in the dash to wind it, or the stem would protrude below the dash) and banging around for years, they suffered a lot of wear and tear, especially in colder climates, where condensation would wreak havoc. I haven't serviced a Bulova version, but many of the other types, Jaeger, Elgin and Waltham. We had a collection of Aviation clocks, both chronograph and time only, and they were all LeCoultre, and well jewelled. These 7 jewel clocks always wore out relatively quickly, I was told by an old timer who remembers them well in the old cars.
Stems for these types of clocks are around, but you can also make them, of course.