All Tag Heuer watches will say "Swiss Made" on the bottom of the face of the watch. Many fakes will say "Japanese Movement", which would never appear on the bottom of the face of a real Tag Heuer watch. 6. Watch Case. Tag Heuer's case is made of black suede. The Tag Heuer emblem is engraved on the bottom. which is unique to the Tag .Every TAG Heuer watch will have engravings on the case back: the model number, the individual watch serial number, and the water resistance of the watch. TAG Heuer makes every watch water resistant to at least 100m, so make sure that any piece you look at even their dress pieces is resistant to at least 100m. All TAGs are Swiss made, and .Tag Heuer watches are Swiss-made luxury timepieces. Their quality should make a genuine Tag Heuer watch last you a lifetime. Due to the strongociation with sports and Hollywood, Tag Heuer watch amb.adors include some of the best athletes in the world as well as famous Hollywood actors..Tag Heuer,ounced: tag hoyer , founded in 1860 by Edouard Heuer in St-Imier, Switzerland. The company was purchased by Techniques d'Avant Garde in 1985, when the Heuernd became TAG Heuer. In 1999, TAG Group sold TAG Heuer to French luxury goods conglomerate LVMH..