Went out of the country recently and just to post about some of the watch shops at the international airport. Basically there are 2 departure piers at the Taiwan Taoyuan International Airport. You either depart from pier A or pier B. This time, I departed from pier A (I normally depart from pier B).
The watch shops (could be duplicated on pier B) are shown below and sells mid to high watches. There is also a Cartier Boutique (sorry no photographs).
There is an Omega Boutique.
And this shop called Master Piece.
I could be wrong, but I believe there is another duty free shop that sells watches but it is part of a shop that sells other things (airport stuff).