I'm not sure variant but I think it could be 1964 Date King "PG"
case stamped M4
Although they are waterproof but it seems that someone flicking dial in coffee
In reply to NIce watch, excellent by Reverend Rob
It appears to me that the dial in the supporting ad (from 1965) is one that is 2-tone with contrasting stripe (panelled) down the middle; similar to this watch in a 1966 ad and this President "I" from 1964; also, the "PG" states Yellow, whereas this watch is stainless.
Is there a clear distinction between Date Kings and Presidents shown the mid-60s ads; so many look identical?
In reply to It appears to me that the by Andersok
In reply to It appears to me that the by Andersok
2-tone dial have PS variant http://www.mybulova.com/watches/1966-date-king-1841
2-tone dial have Date King "PS" http://www.mybulova.com/watches/1966-date-king-1841
Ken - I think you're on to something. My first reaction to your "could this be a President' question was that President didn't come in 30 J - - - BUT THEY DID. Recognizing the two tone dial of the the Date King I'm pulling my vote on that ID, this is not a Date King PG. I have to to poke at this a bit again.
ID to be determined......