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Casio

The Japanese electronics company that redefined what a watch could survive. From the indestructible G-Shock to the iconic A168, Casio has been building cult watches for every wrist since 1946.

Founded1946
HeadquartersShibuya, Tokyo
FounderTadao Kashio
CategoryJapanese Electronics & Watches
WristBuzz Articles560
Casio

Photo: Deployant · 5h ago

1946Founded
G-ShockSince 1983
200mWater Resistance
TokyoJapanese Made
560WristBuzz Articles

The Casio Story

Casio was founded in 1946 by Tadao Kashio in Tokyo, initially producing a ring-mounted cigarette holder that allowed smokers to use their hands freely. From this utilitarian beginning, Kashio and his brothers pivoted toward electronics, developing Japan's first compact all-electronic calculator in 1957. The calculator business financed Casio's move into watches in the 1970s, and the company brought its engineering culture - cheap, reliable, functional, innovative - directly to the wristwatch market.

The pivotal moment came in 1983 when engineer Kikuo Ibe created the DW-5000C G-Shock after committing to build a watch that could survive a ten-metre drop, ten-bar water pressure, and ten years of battery life - a challenge he called the "Triple Ten." After 200 failed prototypes, the hollow structure filled with urethane that protected the module from shock was finally cracked by dropping a prototype module from a toilet window. The G-Shock became the world's most popular sports watch, selling over 100 million units, and remains in continuous production as both an affordable tool watch and a high-end collector item.

Beyond G-Shock, Casio's catalogue spans the vintage-inspired A168 and W86 models that have achieved cult status among collectors for their retro aesthetics, through to the Edifice sport-solar line and the Pro Trek trekking watches with triple-sensor technology. The full-metal GMW-B5000, released in 2019, brought G-Shock to collector-grade territory with a stainless steel case and solar Bluetooth connectivity - proof that Casio can pivot between mass-market and premium without losing its identity.

Iconic Collections

Since 1983
G-Shock
The world's most successful sports watch. G-Shock's resin case construction, hollow module protection, and relentless feature additions created a category that no competitor has successfully matched. From the original square DW-5000 to the round GA-2100 "CasiOak" that triggered a collector frenzy, G-Shock contains multitudes.
Since 1994
Baby-G
The feminine counterpart to G-Shock, sharing the same shock-resistant, water-resistant engineering in smaller cases with colour-forward design. Baby-G has maintained a devoted following for three decades, blending sporty functionality with fashion-conscious aesthetics in a package that remains one of the best value sports watches for smaller wrists.
Since 1993
Edifice
Casio's premium solar-analogue sport line, featuring multi-sensor technology, chronograph functions, and sophisticated dials targeted at motorsport and business audiences. The Edifice ECB series offers Bluetooth smartphone link, solar charging, and world time functions in an analogue package that competes with Swiss sport watches at a fraction of the price.
Since 1994
Pro Trek
Casio's outdoor and trekking collection, featuring triple-sensor technology - altimeter/barometer, compass, and thermometer - in robust cases designed for mountain use. The Pro Trek Smart integrates GPS tracking and full outdoor navigation. Some models feature solar charging and radio synchronisation for indefinite outdoor operation.
Since 1984
Vintage (A168 / W86)
Casio's unintentional collectibles. The A168WA with its stainless steel band and calculator-style digital display, and the W86 sport watch, have achieved icon status through sustained relevance - worn by a generation, adopted by streetwear culture, and stocked by boutiques that would never carry a digital watch from any other brand.
Since 2019
G-Shock Full Metal
The collector-grade G-Shock. The GMW-B5000 reproduces the original DW-5000 shape in a full stainless steel case with a solar module, Bluetooth connectivity, and multiband radio synchronisation. At ~$550, it bridges the gap between G-Shock's mass-market roots and the premium sports watch market, and has been among the most sought-after Casio releases in decades.

Heritage Timeline

1946
Tadao Kashio founds Casio in Tokyo. The company's first product is an ingenious ring-mounted cigarette holder - practical Japanese engineering from the start.
1957
Casio introduces Japan's first compact all-electric calculator, establishing the electronics expertise that powers all future watch technology.
1974
Casio enters the watch market with the Casiotron - featuring automatic calendar functionality. The watch business begins in earnest.
1983
The G-Shock DW-5000C launches after 200 failed prototypes. Engineer Kikuo Ibe's shock-resistant hollow structure passes the "Triple Ten" test and changes sports watchmaking forever.
2000s
Casio introduces solar-atomic technology across G-Shock and Edifice - watches that synchronise automatically to atomic time signals and never need a battery change.
2019
The full-metal GMW-B5000 launches - a stainless steel G-Shock with Bluetooth and solar power. It triggers a collector stampede and proves G-Shock can occupy premium retail space.

Latest Casio News

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