This watch was given to me by my father which his father gave to him, before he went off into the service and 1964. Most likely bought in Decatur Illinois. I'm pretty sure it's a Date King of some sort it has luminescent dots and Illuminescent dials.
Date King is a reasonable conclusion. It appears the dial may have been re-done/ restored in the past. Take note the lume dots are green in color and crisp, while the hands are creamy lume and show signs of age. "30 Jewels" text in block letters instead of cursive.
It appears to be the same as this one with the exception of noted face details.
1964 Date King - no variant (yet)
In reply to Confirming model and variant… by JimDon5822
In reply to I agree with Date King, but… by Reverend Rob