Casio burst onto the watch scene in 1974 with their revolutionary digital watches and they haven’t looked back since. They continue developing high quality watches that are more functional than a standard watch. Leaders in solar powered watches, a Casio can last for decades without missing beat. The G-Shock series are the toughest watches in the world! The G-shock watches have 10 layers of protection surrounding the quartz time control device to prevent damage from drops, knocks, water and more. The Casio line of Pro-Trek watches are highly valued among sports enthusiasts from hikers to scuba divers for the famous multi-functionality Casio has provided for years.