Apple Watch does not power on...

I have an Apple Watch 42mm Series 1 and just recently installed a new battery and a force touch sensor. I tried to follow the guide as closely as possible when taking apart the watch and later putting everything back together. After I sealed it all shut, I placed the watch on the charger and all it does is flash the Apple Logo and would not charge or power on. Now, I’m wondering if perhaps something is wrong with the connections?