Is this Omega constellation Automatic ???

[KennethE]

 

[X350 XJR]

Yes, but the movement is incorrect for a Constellation.

 

[gatorcpa]

Caseback is not factory made and dial is filthy dirty.
gatorcpa

 

[Lorenzzzz]

X350 XJR

Yes, but the movement is incorrect for a Constellation.

Can I ask a question coming out from a quick analysis by using the constellation calibre data by Desmond?

I went looking for Connies having calibre 752 by solely using that document and this is what came out.

752 1978 ST 366.0857 Barrel round - non COSC

I went looking for some pictures of that reference and I immediately noted that yeah, sure the case back is wrong for this sample, but the case as well, assuming this watch is a Ref. ST 366.0857 which is the only constellation having calibre 752.
https://www.omegawatches.com/it-it/watch-omega-constellation-omega-st-366-0857
Given my consideration which may be wrong or right, is it a franken?

just trying to test my little knowledge/analysis in order to improve

 

[gatorcpa]

I think your information is correct. There were some later Constellations made with non-chronometer grade movements, including cal. 752.

However, these would not have the chronometer certification language on the dial like this one. You may want to read the following article:

http://download1979.mediafire.com/d...ljj2ofotl10/The+Calibre+752+Constellation.pdf

I have never seen a “C” case Ref. 168.017 or similar with a cal. 752, so I believe your example is a frankenwatch.

gatorcpa