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Audemars Piguet

Royal Oak 14790ST caseback – no serial engraving? Need your thoughts

 

Hi everyone,


I’m currently considering a Royal Oak 14790ST and received a macro photo of the caseback from the seller (attached below).


While there seems to be a small hallmark (possibly a case maker’s stamp), I can’t see any serial number engraving (e.g. Dxxxx), which I thought should be standard on this reference.


I’d really appreciate your insights on this:


  • Have some original casebacks ever been delivered without a serial number?
  • Could this be a service/replacement caseback, sent blank and meant to be engraved later?
  • Or does this raise a red flag regarding the authenticity or origin of the caseback?



Thanks in advance for your help — happy to share more pictures if needed.


Best regards,






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