Hey,
If you bought the Swiss version, then it's a 6497 Swiss. You have to hand wind this movement to get a reserve of power from it. At full wind, 48 hours is a good reserve, but average is 24-36.
This is not like an automatic movement where the more you wear it, the more it "charges" as in a Rolex. You have to hand wind this one. A good tip imo, is to wind it in the morning before work/school and then again at night before bed. This makes sure you always have a good reserve and also helps to avoid thinking "did I wind it too much?" because it is usually only half as many times needed.
How many times to wind at one sitting can vary. I would say at a dead stop that 20 times around will provide a good charge. Just wind it, till you can't wind it anymore. Go slow the first few times, till you get a feel for what the stopping point is. You will definitely realize the stopping point.