It is a lot cheaper to make a watch than you think. The best price I have EVER seen for a N-Factory Submariner is $46. That price is not available anymore, and so this is your best price currently.
You can see that it has an Asia 21j movement, yes? Not genuine Swiss.
For any new people here, Sead at SuperMirrors is not only a dealer, he is also a modder .. like BK. He does his own mods and super lume on his pieces, plus can offer upgraded leather straps.