Casios G-Shock Atomic Solar Watch delivers cutting-edge features in a rugged design that follows you anywhere. Perfect for backcountry expeditions and hunting trips far afield, the unit is powered from the modern combination of solar cell and a special rechargeable, secondary battery. Energized by the sun or artificial light, the fully charged battery lasts 10 months without exposure to light. Battery-power indicator lets you know when its time to recharge. Youre guaranteed the most accurate time available worldwide thanks to the multiband atomic time calibration thats updated automatically six times per day or upon request by the user. Full auto EL backlight is motion-activated for easy viewing in any light condition. Includes four daily alarms and snooze alarm, calendar, hourly time signal, 1/100-second stopwatch and countdown timer. Shock-resistant. Water-resistant to 200 meters (660 feet). Case dia: 46mm. Gender: Male. Age Group: Adult. Type: Digital Watches.