Omega Seamaster 166.111

Hi and welcome to the forum. Given that you have some mismatched parts and a damaged dial, personally I would suggest just continuing to enjoy the watch as it is and not to invest in it further. Any money spent would be better put towards a different watch in better condition, IMO.

P.S. In the future, I'd suggest experimenting more with your camera so that you can post in-focus photos.

I agree with this.

As far as the 751 vs 752: The only difference is the 751 is a chronometer variant, and is otherwise identical (basically, identical other than the stamped number). While it would be odd to have that movement plate removed, a previous service replacing that plate with 'what was on hand' wouldn't have been unlikely.

So I don't think that is really of concern.

Caseback is unfortunate, too, I'm guessing a similar service resulted in a damaged caseback being replaced with what was on hand.

Your only bet on the dial is to get lucky finding one on ebay. It'll be expensive likely, and whether or not in better condition is a coin flip. IF it bothers you, I suggest spending time hunting one down. Else, that is a great lookign dial in good condition, I'd just live with it.

But my advice is the same as Dan's: Just enjoy it as it is. It is technically a bit of a franken (though I typically reserve that for more severe mix-master watches), but still a lovely watch to wear.

Clear photos would help. Does look to have the chronometer markings on the winding bridge. Caseback according the the charts should have 168 marking.

I like to call my watches rust rats, although this is a bit too nice an example for that. This watch is more of a marriage watch there is an attempt to keep things consistant. Frankenstiens are usually made from what ever is in the parts drawer. One does have to remember than in the written novel, the creature does have a good heart and simply wants to be loved.

Dials are going to be the hardest part to deal with. They go together with the case. So even if a different dial is found it may not fit. It is easy to turn such a project into a money pit. (which can sometimes be fun entertaining and rewarding.) Most of the time the value stays fairly flat. The real value in a watch like this is as a source of parts to fix better examples.

As other do state, If you like it enjoy it.

I agree with Sheepdoll seeing better pictures, I think that actually just IS a 751, not a replacement plate.

I see a couple of examples online of this model with a 751, and I don't believe it was uncommon for it to be an 'option' or valid configuration to be a chronometer variant of these. So I think they only thing that is 'wrong' here is the case back, plus the previous service that 'erased' some of the dial.

Case back and dial are pretty tough to fix unfortunately, so I'd say to just love this one. It probably needs a service based on it being an inheritence, but otherwise should be a good wearer!