Speedy 105.012-66 Centrale Boîtes case?

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I just think all the evidence suggests there was only type of CB case.
I don't know what evidence you have, but I've seen many CB cases without the flat top lugs. Based on what Spacefruit said, he himself has more non-flat-tops than flat-top.
 
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I don't know what evidence you have, but I've seen many CB cases without the flat top lugs. Based on what Spacefruit said, he himself has more non-flat-tops than flat-top.

I think it's safe to assume you believe CB may have created a 'corrected' mid-case after they realised the facets Differed from the HF cases.

I don't believe this, because even the CB cases I've seen without this facet on the front of the lugs, had the thin side profile and the flat section on the rear of the lugs. In my opinion (so I'm not stating this as a known fact, but simply my opinion), this is more likely to be as a result of polishing a faceted CB case (possibly by CB at the factory but more likely at a subsequent service) rather than a new moulding.
 
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I think it's safe to assume you believe CB may have created a 'corrected' mid-case after they realised the facets Differed from the HF cases.
No need to assume since I stated my theories above. I don't know which one is true, but I don't see enough evidence to exclude the first one.

I don't believe this, because even the CB cases I've seen without this facet on the front of the lugs, had the thin side profile and the flat section on the rear of the lugs. In my opinion (so I'm not stating this as a known fact, but simply my opinion), this is more likely to be as a result of polishing a faceted CB case (possibly by CB at the factory but more likely at a subsequent service) rather than a new moulding.
I've seen the flat bottom of the lugs on some HF cases. About the thin and not thin side profile, MWO says that both types have been used randomly, they could not determine which references or which periods should use which specific type.
 
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Fair enough. Like I said before, I would prefer it if CB had created a 'corrected' case as its adds extra complexity to the reference. I don't believe it to be true but I'd be happy to be shown otherwise.

I know there are a lot of CB cased Speedmasters on the forum so let's see if we can find either a trend or an example of a minter without the facets.
 
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Poor pictures but mine clearly has the facets on either side of the lugs as well as the thin, uniform width sides.

Anyone else care to share theirs? Particularly those without the facet on the front b

 
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I'm inclined to believe that all 66 CB cases originally had the facet on the lugs, but I'm not convinced that the shaved edge on the underneath of the lugs is unique to the CB cases either .I'm pretty sure that at least one of the 145.012's I sold recently had the same feature.
I wouldn't be surprised either if watchmakers servicing these CB cased watches back in the 70/80's deliberately polished off the facet to bring them into line with all the other twisted lug cases. I wouldn't put it past Omega to do the same at the time either..
I also agree that back then when a broken speedmaster was just another watch needing fixing, casebacks and other parts often got mixed up.
 
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So what happens to a watch that was mixed up long ago? Is it treated as a franken even though it may have been done by Omega themselves, or though accident, not malicious intent?

For many here, I'd imagine that a watch like this wouldn't be worth much more than parts despite being a perfectly good watch.

Interesting dilemma..
 
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I think a 66 speedmaster that has faceted lugs but has a HF caseback would be regarded by most here as having a wrong caseback. Subject to serial number and dial of course. I believe there are small differences on the hour markers between the two.
 
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So what happens to a watch that was mixed up long ago? Is it treated as a franken even though it may have been done by Omega themselves, or though accident, not malicious intent?

For many here, I'd imagine that a watch like this wouldn't be worth much more than parts despite being a perfectly good watch.

Interesting dilemma..


This sums up my thoughts at this point. Very appreciative of the opinions shared. I'm guessing to some this is a Franken but could the issue be "looked past" by sourcing a HF caseback? In the end it's really just how much the buyer (maybe me) likes the watch and if the price is right.
 
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I think a 66 speedmaster that has faceted lugs but has a HF caseback would be regarded by most here as having a wrong caseback.

Bingo! Can someone show me an example like that? I don't recall seeing one instance of the flat top lugs with the 66 HF backs at all. So the theory that those CB backs with the normal twisted lugs, of which there are many, were the results of case back switching or mixed up just doesn't have a foot to stand on since if it were the case, there would similarly be a lot of the other combination floating around.

As to the possibility of polishing away those facets, we would need to examine each individual example, but I think it is unlikely possible, especially for that many examples. Since all those flat top lug CB cases also have the thin side profile along with the flat cut at the lugs bottom, like David observes, just polishing away the facets would still leave those features behind, along with usually obvious polishing evidence.
 
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OP's watch is not a CB case. I think @greekbum should be interested in this one, since he has a CB case with an HF-lid.

Decided to pass on this one. If @greekbum is interested, or anyone else I'd be happy to share via PM.