G-Shock began with a Casio engineer hurling broken watches out the company bathroom window.
Kikuo Ibe had shattered his father’s watch and won backing for an unbreakable one. From 1981 his team destroyed over 200 prototypes before a bouncing rubber ball showed the fix — its core barely moved, so they floated the movement to match. The boxy watch buyers first shrugged at has since shipped more than 150 million.
G-Shock on Brandseum