No. The cal 3000 is entirely a Lemania in-house job.
Base caliber is the S27. The same ancestor as the cal 27CH - aka Omega 321. All developed and made by Lemania.
If you study the balance of a the cal 3000 and compare with a cal 321 you will see the "anti-catch device" they share.
(Picture from Ranfft).
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