Mismatched serial numbers VS Paperwork 18038

[NB93]

Hi everyone,

Wanted to get a few opinions here, I recently purchased a vintage 18038 (circa 1980's) as a complete set, box and papers from a reputable local second hand dealer.

Today I decided to take the bracelet off for cleaning, and while I was inspecting the watch I noticed the serial number is completely different from the original paperwork I was given (looks to be 1979). Its got a me a little annoyed as even though the paperwork is redundant all these years later its still nice to have. I would have thought due diligence would apply here and the dealer would have double checked this before putting it up for sale. I have no concerns of the authenticity of the piece, its more an annoyance regarding paperwork.

The dealer provides the standard 12 month warranty on pieces, should I bring this to their attention or let it go? It doesn't change how I feel about the watch, its stunning and it quite honestly could be an honest mistake, but if that's the case it makes me question the original seller to dealers intent.

Responses are much appreciated. Wishing everyone a happy new year!