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Great link @gatorcpa.

Here is the excerpt from AJTT.
However, I don’t know how Christie’s could claim that a watch from 1950 could be the model for a prototype produced in 1951.

 
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As for the Goldberger watch - given the known ‘idiosyncrasies’ in that sale, I’m not sure that I trust anything presented there.
 
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Great link @gatorcpa.

Here is the excerpt from AJTT.
However, I don’t know how Christie’s could claim that a watch from 1950 could be the model for a prototype produced in 1951.

Ref CK 2545 has never been designed or described as a Synchrobeat. This watch just had 2 seconds hands and this fact alone does not qualify it to be a synchrobeat...
A synchrobeat requires a modified movement which makes the centre seconds hand jump. And these extra parts make the movement thicker - so the case would need a higher caseback as observed in the prototype in the photo above. I had the privilege to study this particular watch in the backstage of the Omega museum some years ago.
A train wheel with a long pivot (meant for a sub-second movement) put into a 30 SC movent and a sub-seconds dial - viola... you can install 2 seconds hands. It is not rocket sience...
 
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Ref CK 2545 has never been designed or described as a Synchrobeat.
Agreed. Just Christie’s being Christie’s, again.

I do believe that Omega experimented with 30mm movements with both seconds hands. Basically factory created frankenwatches. But without the information from the archives it is impossible to know which were made inside the factory or outside, so all are suspect until proven otherwise.
gatorcpa
 
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Is this a thing, a double seconds 2639? Or did they just put a centrum second hand on a regular 2639 and sold it for 6500EUR?
https://www.monacolegendauctions.com/auction/the-goldberger-omega-time-only-collection-42/lot-1
lemee tell ya what's even worse about that particular abomination: the hands have no lume. 🤡

The dial has lume plots, but the hands do not, both confirming that the latter MUST be incorrect replacements, and literally making it impossible for a wearer to read the time without light! 🤣
 
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lemee tell ya what's even worse about that particular abomination: the hands have no lume. 🤡

The dial has lume plots, but the hands do not, both confirming that the latter MUST be incorrect replacements, and literally making it impossible for a wearer to read the time without light! 🤣
ha! so right @Tony C. - good catch 😉
 
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they probably mixed the SC an PC Movement. i didn´t know this is possible...
This is possible , they probably just swap the mouvement and Hands with a 28x.
The only thing you have to do is butchering the dial to make the centre hole larger .
I like it but it would be better with a fun small second like the ones made by secondseconde
 
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Lot 10 did not seem like an original dial to me. Interesting sale prices, a lot of mediocre watches seemed to sell for more than I expected.
 
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Omegaforums already had a topic entitled " A Little Rant on Auction Houses "...
In summary:
Ever since the very first dedicated wrist watch auction in April 1981 (GGHA - Geneva Switzerland) we know that auction houses are NOT in the business of photographing nor identicating items, just in the business of selling items.
 
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Swap the jewel in main plate and gear. Now you have and extra hand. Pointless
Looks like I sold my 2639 way to cheap instead of just putting an extra hand on it and send it to a big auction house 🙁