Old serial on new watch - why?

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Looking to buy a used 2223.80 (Quartz Seamaster 300M Midsize) and I have a seller telling me the serial starts with a "59." I think he's pulling it off the caseback around the lug where it's etched.

To my knowledge, this is a 1998/late 1990s serial number... but this particular model only started production in the late 2000s, I think specifically around 2008. The pictures check out (It has red lettering, there's no mistaking it for 2561.80) but the number clearly doesn't. The watch doesn't come with warranty, box, etc.etc. it's watch only.

Further, they're from Japan and sale of fake goods is illegal there.

Any idea what could be happening here?

For the curious, pics they've sent attached