I just got the an IWC Yacht Club Chronograph w/ screw in crown. You can wind it as you normally would most watches but one of the things I thought was pretty cool is as you screw the crown down, it also winds it. The first couple of times it felt like I was not holding the crown down far enough as I screwed it in but I think it is actually by design. Anyways, I love the watch, might sell it at some point. Here's a pic.