moneyinc.com › best-casio-watchesThe 20 Best Casio Watches of All-Time - Money Inc 1. The Casio G-Shock Frogman. This watch is a great choice for divers who don’t want to spend too much on a water resistant watch. The Casio G-Shock Frogman is water resistant up to 200 meters and has specific dive timers so you don’t spend too much time in the water. There are two buttons on the left side of the watch for users to control the settings.