Casio released the first ever shock resistant watch in the spring of 1983, known as the G-Shock. The G-Shock line of product was quickly adopted by athletes, military personnel, and outdoor adventurers of all sorts because of it's sheer durability. 

Ever since the introduction of G-Shock, the brand has experienced significant growth from year to year with many new models and updates to show for it, as well as an array of limited collaboration projects.