I bought this watch for my husband. We just started to train for the Chicago marathon (first timers)  and We need a watch that can help us track the time for running and swimming. Some people said that it wouldn't be good for swimming. However, in the instructions it says not to press the bottoms under water my husband has been good at following the instructions. So far still working we used it every day. The Lap setting is awesome and the reminders are very useful!