The Casio Tactical G-Shock Mudman G9300-1 is an ultra-durable watch with superior functionality. Not only is it shock, mud and water-resistant, but its sealed case and buttons prevent debris from entering the interior and inhibiting function. Besides displaying the time in 31 separate time zones, it is also extremely versatile and features a digital compass with magnetic declination correction and a graphic direction pointer, so you always know where to go. There is a thermometer, a full calendar and a moon data tracker for up-to-date climate information, and the interface is intuitive enough to adapt to quickly. This watch is solar-powered but can run for eight months on a full charge without further exposure to light.