Diving is an action activity. The last thing you need is to worry about the durability of your gear while in action, least of all your timepiece. The Oris ProDiver ensures that you have one less thing to worry about. It has a Rotation Safety System that is both innovative and completely safe. It comes with a chronograph that records elapsed time. It also features a fly backhand that restarts once it is reset to zero, so you don’t have to pause mid-activity to start the watch again.