What is the success story of Casio G Shock watches?

Welcome to the story of how a broken watch led to Casio's $100 billion success with the iconic G-Shock! In 1981, Casio's engineer Kikuo Ibe favorite pocket watch, which was gifted by his father, fell and broke. Determined to create a watch that never breaks, he tested his designs with the triple 10 machine (10-meter drop test, 10-bar water pressure test, and 10-year battery life). After over 2 years of testing, he got an idea from a rubber ball and created a design with a hard outer shell. Thus, the G-Shock was launched in 1983. Initially, it didn't get a good response in the market, but its rugged design and durability made it a favorite among adventurers, athletes, and soldiers.