By-Tor is right (should i say as usual?).
I also wanted to buy a noobmariner from Timeshops but i realized they have low quality finishings.
The submariner has very often crooked crystal and cheap bracelet, the seadweller, another watch i had a look to, horrible SEL gaps.
Unless you're not picky at all, despite the good price, it's not worth it.
I gave up, at least to buy from Timeshop.
I prefer to spend some more bucks and have it quality checked.
It's different if you're looking for a Sub-C in that case overall quality is better (but be careful again to not centered pearl and crooked crystal).
By the way, the pic posted by Jkay is mine and yes, he's correct, crystal is crooked (thankfully an easy mod).