Note that smcFanMonitor v2.5.2 does NOT work on the 2012 rMBP. It shows a temperature 40-50Cº lower than any other temperature monitor and the developer is notoriously unresponsive. If you feel a need to use it downgrade to v2.4.
Is this rMBP the low end model with no discrete GPU? If not, it's odd that the heat sync has no pad for the 750M (look at the 2012 rMBP's heat sync that definitely had a a separate pad for the 650M). If so, how about a guide for those of us who bought one of the higher-end models?
Since it's April 1 I expected a joke and wasn't disappointed. Good one! Still, I appreciate the teardown. I have two of these watches and they both need batteries. Now I can do it myself instead of taking them to a jeweler.
By the way, I hope you can get this thing back together again, because they're going for a bundle on eBay!