Seamaster Professional 2531.8 production date

gerudo

Hi,
I have a question concerning the production date of a blue bond SMP ref. 2531.8 I bought recently without papers. I have a 49XXXXXX serial number on the lug which doesn't make sense because these serial corresponds to mid 80's. Am I considering the wrong serial number ?
I don't think the watch is fake but can't rule out this possibility. The watch also has a small star inside a lug.

Thank you!

padders

Serial suggests and early Auto SMP, from 1994-1996 with tritium dial. Omega serials don't run all that sequentially in the late 80s early 90s. The star functions as an internal quality control and has no really significance outside the factory.