As far as my knowledge goes, traditional mechanical watchmakers are not at all frightened by the apple watch to take on their 10000€ and above market.
But the Quartz- watchmakers do fear the competition because the much lower price point of roughly 1000€ and below. Maybe TAG Heuer sees a new opportunity to spread its brand name.
This is what most watch people are saying, that it's the lower priced watches that might feel the pinch.
Or not, since I would be surprised if many iPhone owners were buying under $1000 watches before. So perhaps there's little previous market to lose in the first place.
Tag doesn't have the engineering prowess to come anywhere near the size of Apple's 38mm watch with comparable features. I don't think people here appreciate just how amazing an engineering feat the Apple Watch is.
If you compare it to the Moto 360, for example, it has a lot more functionality and much better battery life in a far smaller package.
Note that such comments about Moto 360 battery life are way out of date. It got a software update that was widely reviewed as increasing runtime from short of a day, to between a day and two days.
My own experience has been 24-36 hours between charges.
Other than that, carry on