Casio Men's Mudman G-shock Quartz Fashion Watch - Start a New Routine The resin Casio Mudman digital watch is an athletic and sporty wrist piece that runs on tough solar power for an efficient performance. The case and the buttons are resistant to mud, shock and wear for lasting use. With a high water resistance capacity, you can wear this watch even while swimming. The full auto EL backlight and afterglow will never let you down in the dark. With the power saving function, this outstanding watch will work for 8 months on full charge. This watch features a digital compass, a thermometer display and world 31 time zones for added convenience. Black in color, this accessory will go with your casual and sporty outfits of any shade.