My coworker wore this into work today. It belonged to his father (really, no uncles are involved). He mentioned that it was serviced a few years ago and the crystal was replaced at that time, but it hasn't been worn very much. It looks to be in fantastic original condition, although the replacement crystal has a date magnifier which I don't think I've ever seen on a Seamaster. Pardon the phone photos. He'd love to get some more info about the watch. Reference, approximate production date range (his estimate is "some time in the 60's), and so forth. Also, the original bracelet has been lost; does anyone know the reference number for it?
screw off the back and snap some pix of the movement, the serial number will pinpoint the date of production.
Some Seamasters came with the magnifier. This is mine. You can see the shadow of the Omega symbol in the middle of the crystal.
Omega switched from 5 digit reference numbers to 6 digit reference numbers around 1962. Many case styles continued under the new reference numbers, and I think (not 100% positive) that this is the case (pun intended! ) with the 14.7xx and 166.0xx. I forget exactly which reference replaced what, but it's along those lines. It just so happened that in this same time, Omega phased out the coat hanger S in favor of the more rounded curving S.
Here's an earlier 14.7xx I owned: https://omegaforums.net/threads/18ct-1960-seamaster-reference-14-704-1-caliber-591.961/ Similar lugs and crown (lugs a little thinner, crown a little thicker) to the watch in question, just an earlier iteration with a caliber 591.
Thanks, guys. I'll ask if he's interested in opening it up himself and loan him my wrench and opening ball.