Like everyone has said, wind till you feel resistance. Once you feel it, stop. Some advise to wind daily at the same time, some advise to wind it one way, I.e. bottom to top or if you looking at the crown wind it clockwise, some will advise you to wind it forward and backwards, I.e. rocking the crown (to ensure proper oil distribution). It is really up to you, no right or wrong way.
As for the power reserve, the best I have gotten is 63 hours and that was when the watch was brand new.