After reading up a lot on the subject, it seems their watches are purchased on the grey market. This explains how they can offer $100's lower than their nearest competitor. The watches don't come with a manufacturers warranty, but they offer their own warranty. They also aren't authorized resellers of most of the brands they sell, which makes me nervous. Anyone with experience either way? How worried should I be if they promise the watches are 100% authentic but they aren't purchased from the manufacturer?!?