Help With Omega Seamaster 600 Circa 1966

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Thanks. The fact that a few years later Omega Ploprofs (and other watches too?) are also called Seamaster 600 kind of adds to the confusion...
 
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Thanks @Passover @MCC @Hnansen @JimInOz @ChrisN @KingCrouchy and all for the information and response!!

I have bought (and just received) an 'Extract of the Archives' from Omega for this watch . The certificate has come back from Omega saying that the model is a Geneve, when I placed the order I gave the stalls of the movement number, calibre, watch/case ref number and stated that it is a Seamaster .

The watch is a seamaster; do you know if the Geneve movement is used in the Seamaster 600 or does this watch have a modified faced?

Little confused as I expected the Extract of the Archives certificate to state that it is a Seamaster .

Many thanks

First, let's look closely at the information from the OVDB. Here is the entry for reference 135.011.



You'll notice that the picture is of a Genève, all of the information is related to a Seamaster.
The OVDB is a good guide, but like a lot of reference points, it can contain anomalies so it can't be treated as "gospel".

Caliber 601 was used in many references in the 1960s, so it isn't a "Genève" caliber. It just happened to be fitted to Genèves, as well as Seamaster 600s, Cosmics, Dynamics etc etc.

I have a reference 135.011 in entirely original condition and it is a Seamaster 600.
I also have a Genève fitted with a caliber 601, it has a reference of 135.012.

As can be seen in a shot from the Omega reference book, A Journey Through Time, the reference 135.011 is shown as Seamaster (3 of them actually). It also has a 135.012, the description which makes interesting reading.



I have no doubt that your watch is completely correct and that the discrepancies lie somewhere within the processes/records held by Omega.