great photos and presentation. All the stuff to ID. Good style in DB entry. ...and a nice President too. Confirmed ID from me...and to me begs the question: if the Q is yellow gold, the R is white gold, and the S is White w/ black dial....did they have a yellow gold (like Q) w/ black dial? ....and it could be either mount, dial color, or who knows....which defines in other variant examples. We just don't know, and I can't vote based on "what might have been, or could be"- just on what we have to date. I'm wondering if the subject watch on leather occurs in an ad or list of models made...in which case there may not be an ad but something possibly indicating on leather. I know the Bulova model numbers have a rhyme or reason...I just don't know what it is.....yet.