Is this a Franken De Ville?

I would appreciate any help Identifying this Reference! I have seen several examples of the straight/square end lug. I have even seen some with dates but I've not found one with both which were labeled Seamaster De Vills and with the "fat"S. In the ultimate Seamaster De Ville thread I did see a post mentioning some 135's that the author thought had new movements with dates put in so I am hoping someone might have some insight!

I thought so too but I just haven't actually been able to find any images of exactly this combination of case shape (lug shape), metal color, model labeling and date window. I have seen 166.020's with dates and "Seamaster De Ville" with the fat s but the lugs are always the ones with "slanted" lug tips. I thought maybe this was one of the "marriages". When it gets here, I will be able to get inside it if I can find a competent watchmaker who knows how and get a shot of the reference #. I don't presently have knowledge of one within range.

Could this be the non-diamond version of the Ref discussed here? I had skimmed this earlier as it had the diamond dial.

Thank you! I'll know soon enough I guess. I just got a little worried I'd mis-judged another one! It will be a bonus if the case is gold and not GF.