This is more clock making rather than watch making, but check out the clickspring channel on youtube. He builds a mantel sized clock from scratch in his home machine shop. Amazing stuff and beautifully done videos.
It seems unlikely that Facebook will mess Oculus in any significant way, and I agree a lot of the sky is falling reactions are irrational. However, a lot of people just don't trust Facebook, for rational reasons. It comes down to this: if one doesn't trust Facebook, why would one want to give their money to Facebook?