Sorry Worshipers Apple Pay Is Not Safe...
"But while it’s quite convenient to just flash your watch at a point-of-service terminal to pay for something (when it actually works), it may not be very secure. It seems as if thieves can easily use your Apple Pay account if they swipe your Apple Watch."
http://www.valuewalk.com/2015/05/beware-apple-pay-on-your-apple-watch/
Let's talk security. I have done real research, you have read mainstream news and fallow it like a sheep. The ability to swipe a watch as shown would not only be super difficult, but pointless. In the straggle of trying to steal it, it would have locked. As for the payment it's self, it's not even Apple's design. It's EMV or MSD tokenization. (Invented over 20 years ago), the security is great, same goes for GW.