G-Shock offers the toughest watch of all time . It designed a watch that would resist centrifugal and impact forces, as well as high water pressure. The team created  over 200 prototypes  one after another over a period  of about two years. They finally arrived at  a shock-resistant structure. 
This marked  the birth of a technology  that is tough to the core. In its pursuit of usability  under any circumstances,  moreover, G-SHOCK realized installation  of Smart Access,  a system assuring agile,  reliable operability.