Was it all original as claimed? And if so, why low BIN? (SM300 content)

Saw an SM300 on eBay for sale yesterday that seems low for the price. Now that is sold, i wanted to see if it was all original as claimed, and if so, why such lower price than usual.

Model is 165.024, around '67 going by what was shown from the serial # (242xxx)
Correct 552 movement
"E" type bezel
Naiad crown
Sword Hands
Round caseback, which points to earlier models from what I read at least.
Lume looks original and quite nice, but cracking in few spots it seems.

Looks like everything matches, and case isnt overpolished, so was surprised to see it had BIN of <$5K







Thanks

https://www.ebay.com/itm/Vintage-Omega-Seamaster-300-Watch-165-024-/254249896586?oid=264394935728

Weird, when I posted my link, it was showing same thing as yours. Thanks either way 😀

Lume is for me an early redial. The rest seems legit.