Well on the power reserve it depends on how active you are as to how quick it will build a decent power reserve of 2 days, generaly after a full day on my wrist (i am quite active and run every morning) most watches have at least 36 hours PR. which model did you get if it a modern sub then the bezel should only turn one way, how about some photos?
But the best bit is that you are happy, you will find that collecting reps is:-
A addictive
b frustrating
c a bit of a gamble when it comes to quality control
enjoy and get your camera out