I recently bought a Tag off a grey-market site for about 600usd off its regular retail price. It hasn’t arrived yet but is on its way. I was told by the site of bought the watch off of that the piece I bought was the last piece they had and the factory/distributer they got it from had closed down (which was understandable to me, because it is a relatively old model, I believe 2018-2019). The site offered me 6 months in-house warranty because they said the Tag warranty could not be registered any more, though I’ll still try.

They also told me that to the verify the authenticity, I can bring the watch the the Tag Heuer boutique and request to resize the bracelet. They’ll do it if it’s authentic. Is this real? How much will the resizing cost me? What do I do if Tag rejects me (since they can’t register the watch)? Can I take it to an AD to verify it’s authenticity?