Casio Men's GW9200-1 G-Shock Riseman Alti-Therm Solar Atomic Watch Imported This rugged Riseman watch from Casio is one part scientific instrument, one part timepiece and one hundred percent ready for whatever the outdoors hurls your way. Receives time calibration radio signals which keep the displayed time accurate auto receive function (6 times per day) manual receive function Water resistant to 660 feet (200 M): suitable for recreational scuba diving