购买一块全新的名牌手表。 向制造商核对序列号。 咨询鉴定师。

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The best way to avoid fake watches is to buy exclusively from authorized dealers. While it’s more expensive than buying secondhand, you’re much more likely to make a legitimate purchase. When you buy the watch new, it will come with all of the paperwork and serial numbers verifying its authenticity. To find an authorized dealer of your favorite watch, do an online search or talk to the manufacturer. If you're buying the watch secondhand or at an auction, check the serial number with the manufacturer before purchasing it. Note that designer watch manufacturers keep careful records on the different watches they make. Therefore, if the watch you're buying is genuine, you will be able to find documentation on it. To check the serial number, do an online search or call a customer service representative. If you're worried that the deal you're getting is too good to be true, take the watch to a professional appraiser before buying it. If the seller is being honest with you, they will have no problem letting you get the watch appraised. To find an appraiser in your area, do an online search or talk to a fine watch distributor.  Ask the appraiser to determine whether or not the designer watch is real. If they say it's real, have the appraiser walk you through their reasons for believing so. Additionally, the appraiser may be able to tell you whether or not you're getting a fair price.