For a watch that cost at least 5 figures, i will not dare to buy from someone who is gonna send it by mail. Mainly cause
1) Money paid but got to wait usually for more then a few days to get your watch. The wait for your beloved watch to appear in your mail is excruciating

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2) Don't trust the seller, no face to face dealing thus hard to tell whether you will get your goods or rocks

3) The high risk that you do not get your watch vs the attractiveness of discount , easily offset the addition discount given.
At least you are guarantee to get what you pay for.

Just my 2 cent
skepticism in all things
