I would agree, and my guess would be that if you had opened that watch, it may have an improper rotor inside. The parts bag includes a complete rotor, and that makes no sense since the bearing in this rotor is easily replaced. however that bearing is specific to Omega, so unless the person who did the work had access to a proper bearing (a 2892 bearing will not work) they may have replaced the entire rotor with one from a 2892.
Omega clearly gives you more paperwork than just what was shown there also...
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