New to Mechanical Watches: I have had my Nav B-Uhr II 44mm Hand Wound watch for a week now. It is stunning to look at and really well made for the price. The problem I have been facing though is that the power reserve on my watch seems to be very poor. Initially, I was cautious to wind the watch because I have never wound a watch earlier, but now after winding it to what I believe is fully wound, the power reserve seems to be very low and lasts only for 14-15hrs. I keep winding the watch till it becomes difficult to wind it any further. Is there someway I could be sure that I have wound it fully or could it be that the movement is defective? Has anyone ever received a Steinhart with a defective 6497 movement?