Would anyone know the Ref No for this Bulls Eye 30T2 Omega?

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The case back has only the serial no that doesn't even match SN on the movement. Guidance anyone and hope this finds all safe and healthy. Thank you community.
 
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On Omegas, case serials and movement serials shouldn't match.

EDIT: 20 seconds on google suggest that it might be a ref. 2318.

2nd edit: seems like 2318s had the reference number stamped in the back, so this is probably not one. A precursor?
Edited:
 
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Hey Troel (hope I got it right).Thanks a lot for the info. Still learning but so many confusing things.