This Casio G-Shock model features shock-resistant construction that protects against all sorts of impact and vibration and is equipped with radio-controlled multi-Band 6 Atomic Timekeeping; a built-in miniature antenna conducts high-sensitivity reception of standard time radio waves carrying time information, and corrects the time automatically along with tough solar power technology that transforms even weak light from sources such as fluorescent lamps into ample energy to provide stable operation of various high-load functions. The watch also features 5 daily alarms and a full-auto LED light.A unique hand adjustment capability in which the user can shift the hands out of the way of the digital window for easier viewing. This can be very helpful when the watches stopwatch or countdown timer functions are being used. This watch is also water resistant to 200 meters so you can wear your G-SHOCK in all sorts of situations, from working with water in daily life and taking a shower to participating in water activities such as swimming, surfing or jet skiing. The black resin adjustable strap is lightweight and comfortable; designed to be worn for long durations. G-Shock is the most durable digital and analog-digital watches in the industry, trusted by military personnel, law enforcement, surfers, and outdoor enthusiasts around the world.