Astronaut Thomas Reiter wearing a G Shock DW-5900 aboard the ISS (NASA)



1. They were invented after an accident

Ibe wearing the classic G Shock "Square" (Casio)

Casio engineer Kikuo Ibe conceptualized the G Shock watch after he tragically dropped a pocket watch given to him by his father. With his family heirloom broken, Ibe was inspired to change the identity of the timepiece from a fragile piece of horological jewelry to a tough and reliable gadget accessible to anyone and everyone. In 1981, Project Team Tough was formed to make this idea a reality. After two years and over 200 prototypes, the team finally released the first G Shock watch model DW-5000C (DW standing for Digital Water resistant) in April 1983.

2. All G Shocks must adhere to the “Triple 10” philosophy

The many layers of G Shock toughness (Casio)

When Ibe set the standards for this new tough watch, he developed what is known as the "Triple 10" philosophy. The watch had to be water-resistant to 10 bar (100 meters), possess a 10-year battery life and, of course, withstand a 10 meter drop. Note that the 10-year battery life is from the time the battery is fitted in the factory. If a G Shock has been sitting on the PX shelf for a few years, your mileage may vary. Of course, the "Triple 10" philosophy is a minimum standard and many G Shocks surpass it.

3. They are certified for space travel by NASA

That's right, the humble G Shock is a certified astronaut watch. Specifically, the DW-5600C, DW-5600E, DW-5900, DW-6600 and DW-6900 models are all flight-qualified for NASA space travel. The G Shock is joined by the Timex Ironman and the more famous Omega Speedmaster Professional and Speedmaster Skywalker X-33 on the prestigious list of NASA-approved watches.

4. They are the choice of Special Forces

Ok, you probably knew this one. After all, most people who wear the uniform also strap a G Shock to their wrist. Operators like Marcus Luttrell, Grady Powell and Jared Ogden have all been pictured sporting the tough G Shock. It's always nice to remember though, that even if you can't grow out a cool-guy beard, walk around with your hands in your pockets, or run around on secret squirrel missions like the tier one elite, the G Shock on your wrist was made in the same factory as the one that they're wearing.

5. It holds a world record

In order to prove the toughness of G Shocks, Casio subjected a classic G Shock DW-5600E-1 "Square" to the most extreme test in the pursuit of the Guinness World Record title for the heaviest vehicle to drive over a watch. In order to break the record, the watch had to be running properly after being driven over by at least a 20-ton truck. On October 30, 2017, the "Square" was placed face-up and run over by three tires of a 24.97-ton truck. The watch sustained no significant damage and functioned normally, claiming the world record.

6. The line continues to evolve and expand

The gold G Shock still adheres to the "Triple 10" philosophy (Casio)

Since its invention nearly 40 years ago, the G Shock line has incorporated over 3,000 different models. Today, while you can still buy the classic G Shock "Square" for just over $40, there seems to be a G Shock for every buyer, occasion and budget. The G Shock Women and Baby-G lines offer the same toughness and durability expected from the G Shock name in a smaller, more restrained case size. Modern features like GPS, Bluetooth and heart rate monitoring are also available. Materials have similarly been updated in the 21st century with the Carbon Core Guard, G-Steel line and even 18-karat gold. Announced in 2019, the G-D5000-9JR was limited to 35 units and retailed for ¥7,000,000, or about $65,000, making it the most expensive G Shock ever.