Frank Adam wrote:
....
You'll have to push the pin on one end, while with your third hand
pulling the band (gently) away from the case. Once you dislodge one
end you may think that you could pull the band off the case. Maybe
so, but in my experience those Rolex bands are very good fits and
getting just one side out will not let the band tilt far enough out of
the case. Forcing it off will damage the spring bar.
So, make sure you dislodge both ends of the spring bar. Once that is
done, the band will just pull away.
Hope this helped.

If this guy keeps messing w/ this the value will be zero...to OP, just
take it to a Rolex dealer and all will be known...if you paid what you
did, a few hundred can only be a reasonable investment to attempt to get
at least some of the value restored. Of course, is there any guarantee
it's not a fake? Perhaps that's what you don't want to know???