$150 is cheap yes, but when WO-Mart is selling many of the 2824 watches at between $140 and $150, he must have a margin. And with a group buy the dealer would still be left with a margin. But of course, if the marnufacturor is more expensive on this particular watch, then $150 is not a probable target. But, if Paul has the same watch for $159, $150 should do.
I'm no expert in watch comparisons, so I'll leave that to the pro's. But it would be nice to compare the two.