Thanks guys. Ilovelobbs - my taste in watches is pretty diverse, but when it comes to a dress watch, this Omega approximates my ideal. I do wish more companies (contemporary Omega included) would stop treating the dial like a billboard and keep things simple and clean). I have never been able to understand, for example, why the depth rating - in feet and meters no less - ever needs to be displayed on the dial. Surely the caseback would suffice for recording such information, assuming the owner had an impossibly short memory and wanted to check.
Mimo - I don't have much more info to share. The watch was purchased by a good friend of mine from Joseph Gisbert http://shop.joseph-watches.com/joseph/en/FMPro?-db=gaj.fp5&-format=index.html&-view
But that purchase was made 10 years ago and the little blurb with detailed info has been misplaced. Going by recollection, he believes the watch to be from the early sixties with the 30T2 (or some variation thereof) hand wind movement.
Another long time watch friend is a watch maker and authorized Omega service rep. I was going to send him the watch just to have him open it up and check on the condition (and he can date the movement accurately from the serial number) but a) it is running flawlessly and I have a 'don't mess with success' policy when it comes to servicing watches and b) I couldn't bear to be parted from it just yet.