Luxury watches are popular and valuable, but there are dishonest vendors who market fakes as genuine. You can protect your investment by taking proper precautions. We recommend the following:
Look for a reasonable offer.
Compare the product to known genuine items.
Check markings, serial numbers, and other details.
Buy only from a reputable source.
Protect yourself during the purchase.
Buy only if the watch comes with the original manufacturer’s materials.
Check the watch carefully when it arrives.
More here: https://blog.womw.co/2014/06/29/watch-real/
https://www.wikihow.com/Identify-a-Fake-Watch