It has a stop watch function.
The movement photo has complications which look like "more than a hack feature". Jewels match ad, and it sure looks like the Medico. Nice ad find again Bob. Would Bulova had mentioned the hack/stop feature in the ad? Not much said about the other watches featured above, but this complication may have warranted at least "stop watch" text under ad (if there was room).
Medico has four hands, same as the one-button chrono.
I'm not saying it is this watch, but it seems to fill all the requirements apart from the crown, which cannot be seen at all anyway.
The ads were very tight, Will, with no room below as there was another row of watches by other makers.
EDIT:- What I meant to say was, The Medico could possibly be the one button chrono.
Very Interesting, we have two of these in the db as 'Chrono' right now
I think we should ID this as Medico and update these as well, the dials are slighly different but all three have the case and the movement....