Sorry. I have the internal serial number different from the engraved cashier number. In particular, the numbers are the same but 2 inverted that is a 41 inside and a 14 outside. I don't know how to understand this original 97 watch error. If I send it to the parent company for free then they remove the TRITIUM. THANKS
Not sure what this post means mate, are you saying the serial on your movement is different from on the card that came with the watch or different from the serial on the lug?
Cashier=case. It's a bit late to return the watch to Omega at this point. Are you worried about resale value? If you just bought it, discuss it with the seller. If you owned it for a few years (or decades), there's no point in now suddenly starting to lose sleep about it. In some sense, it makes the watch more unique and rare; similar to the Blue Mauritius, and whatever color that misprinted 6pence stamp is.