 | How To Check Tag Heuer Serial Numbers |
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Serial numbers for Tag Heuer watches are engraved on the case. They also come with a warranty card which is signed and dated for when you send it in for repairs.
Then again, this answer might help you...
TAG Heuer watches are all marked with the company logo on the back of the watch. Under the logo there are two sets of numbers. The first set is the reference number and the second number is the serial number. If the serial number does not have any letters it is a certified chronometer watch. The TAG Heuer company encourages clients to register their watches.