What a cool watch. I don't see it in any of the adverts but I think it's a "Bulova 23". This is the era Bulova was advertising the "23". The dial markings are consistent. We have seen those open lugs on Presidents too but not quite the same......
Unknown or tentative "23"
Great looking mens watch. Would totally agree with a generic Bulova 23 call. Variant not yet seen.
Bobbee is correct in that the advert above shows the case of one watch and the dial of the other. My gut is telling me that its a model variant we haven't seen before and a very nice one at that. Great combination!
If you could, more info on the date letters/numbers on the case and movement would be cool.
Very nice watch and a beautiful heirloom, get it serviced, it will keep really good time for many years to come if it is looked after, and something for the great, great grandkids to ooh and ahh over!