G-Shock vs hammer: testing why G-Shocks are indestructible

Pounded with a massive hammer, subjected to extreme pressure, hurled onto concrete at breakneck speed. Every G-Shock has to endure a series of serious ordeals before it's allowed on your wrist.

In the Japanese town of Hamura, an hour west of Tokyo, sits Casio's R&D center. There, the brand commands a battalion of machines developed specifically to simulate every conceivable scenario.

From hammer blows and electrostatic shocks to mud infiltration and extreme water pressure. Every G-Shock watch must pass all of these tests before it goes into production.

The story began in 1981. Casio designer Kikuo Ibe set himself one simple goal: to create a watch that could survive a 10-meter fall.

After more than 200 prototypes, he found the solution: instead of armoring the movement, he let it "float" within a shock-absorbing construction. He was inspired by children he saw playing with a rubber ball in a park.

More than 40 years later, the G-Shock DW-5600E-1 holds the Guinness World Record for the heaviest vehicle ever to drive over a watch: a truck weighing nearly 25 tons.

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