Cal. 861 stamp missing?

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Hi all,

Are there examples of transitional 145.022-68s with (what was then) the new cal. 861 with no "Ω861" stamp? Saw this example online, didn't see that stamp, and wasn't sure what to make of it. Thanks!
 
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Maybe a Lemania movement with parts of an 861? There are some differences in colour visible to me.

kind regards Max
 
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I think it is there probably, just not picked up in the picture. I can see some vague marks that look like 861 under the balance wheel.
 
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I think it is there probably, just not picked up in the picture. I can see some vague marks that look like 861 under the balance wheel.

This ^^^
 
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side note: quick release springbars? hmm. never seen those before.