Your watch is a ref. 131.0016, the 5 is added because it is a A.L.D. case
https://www.omegawatches.com/watch-omega-other-omega-bd-131-0016
The dial looks correct for the reference but is should be a manual cal. 600/601 in it so it has been changed to an automatic at some point.
I think the 417 821 is a A.L.D. casemaker serial or other number.
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