Welcome to myBulova and thank you for sharing your watch with us, I added the serial number for you. It is a Bulova Military "A-17A" like this one https://www.mybulova.com/watches/1959-military-issue-11708. A very nice watch!
1961Bulova Military "A-17A"
In reply to Welcome to myBulova and… by Kathy L.
In reply to Hi Kathy, thanks for the… by Bryan R.
I did notice some slight differences between my example, and the one provided in the link. The one in the link, 1959, has the AF-59 denotation in the serial #, where my 1961 doesn't. Also, 1959 version has second markers every 5 seconds, 1961 only marks every 10 seconds. Did the A-17A have sub-models?
Also, I entered the Case manufacturer as Bulova erroneously, if it could be corrected to Star, thanks!
In reply to I did notice some slight… by Bryan R.
A147A MIL-W-6433A as noted is a Navigation Watch, note the dial has 24 hr markings. Having been serviced several times I wouldn't work too much about the possibility that a hand may have been replaced. While it's possible to update some components, why not honor your father's memory and wear it just as he did? It's a suggestion but entirely up to you. You should have it serviced if you intend to wear/use it.
1961 Bulova Military Issued A17A
In reply to A147A MIL-W-6433A as noted… by Geoff Baker
Hey Geoff, thanks for your comment.
I agree about the hands, and the sentiment. It was actually my Father-in-laws, but I respected him just as much as my own.
I actually brought it to have the hands worked on, and a cleaning/oil/regulate done, since it hasn't had a documented service in 52 years. I put those leather straps on it myself, so am going to purchase a nato one piece for it.
Definitely don't plan on wearing it daily, but will on occasion, and keep it to pass to my son one day.