I didn't pay enough attention to the fact that this was an automatic watch that requires winding, and when I received it, I almost returned it. But I read the booklet that states if worn for 12 hours, the watch should be good for 38 hours before stopping, and I kept it. Well, maybe I don't move my arm enough, but even when I wind it manually for 30 times before going to bed, it has stopped in the morning. Winding it then doesn't get it moving either until the time is reset, which is no big thing since the time needs to be reset anyway. So now I've ordered a watch winder, something that makes the sale price a whole lot less attractive. I bought this watch for use on the golf course, not to wear every day. If you've got a watch winder, fine; if you don't, I would not recommend buying it.