At 7:51 I mention "the green" and trail off. I meant to say when you're putting the board back into the backing, the green peg goes into the more shallow of the two notches (the one with the metal).
02/26/2018 - 10,000 views! Glad to see there's a lot of people still rocking the OG 360.
I threw this video together in a couple hours, I apologize for the quality. I made this because it seemed like a lot of tutorials made you use a heat gun to pry off the back plastic piece, then tear off the back - such as on iFixit.com. Cheers to some people on Reddit and some commenters on the iFixit Moto 360 page for making me aware of this method.
BTC tip not necessary, but here: 1HzELtWCXGW37UrhKLeiVNG81zZVmUggSp