G-Shock was born out of the idea and desire to create an indestructible watch. Casio engineers followed the so-called "Triple 10" concept, which involves the watch surviving a 10-metre drop, withstanding 10 bars of water pressure and lasting for at least 10 years on a single battery charge. Ever since the brand’s launch in 1983, G-Shock has honoured this strict concept and focused on perfecting its G-Shock line-up through constant innovation and continual development.