Casio G-Shock GA-110NM-3A watch collection. Below are some of the latest designs of Casio G-Shock watches. Casio g-shock watch is considered by some as the ultimate sport watch. GShock Atomic and Solar power watches are the newest and the hottest style from Casio. Some other interesting features on the watches are 200 meter water resistance, shock resistant, stopwatch, alarm and world time.
The first G-Shock, the Casio DW-5000C, was designed in 1983 by an engineer working for Casio named Kikuo Ibe. It was designed to have a 10-year battery life, be water resistant to 10 bar, and survive a 10m fall onto a hard surface. 200 prototypes were tested by dropping them from rooftops or third story windows
A watch is a small timepiece intended to be carried or worn by a person. It is designed to keep working despite the motions caused by the person's activities. A wristwatch is designed to be worn around the wrist, attached by a watch strap or other type of bracelet. A pocket watch is designed for a person to carry in a pocket.
Watches evolved in the 17th century from spring-powered clocks, which appeared as early as the 14th century. During most of its history the watch was a mechanical device, driven by clockwork, powered by winding a mainspring, and keeping time with an oscillating balance wheel. In the 1960s the electronic quartz watch was invented, which was powered by a battery and kept time with a vibrating quartz crystal. By the 1980s the quartz watch had taken over most of the market from the mechanical watch.