It definitely has to be the Facer Applicaiton, as I have done some different tests with my Ticwatch E I have found the same as the others on this discussion. I believe that it has to do with the fact that the Facer app runs differently than most other watch face applications on android. It is comparable to Facer's rival, Watchmaker, as instead of installing a certain watch face onto the watch and then being able to scroll through the faces as is shown in the Android Wear tutorial (ie scrolling right or left), you must change watch faces through the Facer app by long pressing or tapping three times. I believe that this redundancy is what is causing so many power draining with watches using the Facer app, and only a Facer developer could confirm this, but it seems to be the case. Interestingly, I found that the Watchmaker app drained my battery in the same way as Facer, adding evidence to my theory.
As a side note, everyone should know that when you have an always on watch face that has brighter colors (such as white) the watch battery will always drain faster than if it uses black and darker grays.