Casio G-Shock GLX-5500-1ER
Casio´s G-Shock was originally developed for Yacht-sailing and other hardcore naval actvity. Due to this the watch has more functions than most. A few examples are tidal graph, yacht timer, automatic backlight, a well developed stopwatch system, mineral glass, three multiple alarm settings and the actual G-Shock protaction system. Waterproof down to 200 meters.