Brand · Japanese electronics, Tokyo, est. 1946

Casio

From the world's first compact electronic calculator to the indestructible G-Shock — durable, reliable, endlessly inventive.

Casio
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13 pieces
Casio began in postwar Tokyo in 1946, when engineer Tadao Kashio and his three brothers built a finger ring that held a cigarette — and reinvested the profits into calculators.

The four Kashio brothers formally founded Casio Computer Co. in 1957 and released the Model 14-A, the first all-electric compact calculator. The same restless engineering reached the wrist in 1974 with the CASIOTRON, the first digital watch with an automatic calendar, and the resin F-91W of 1989 — the most-sold wristwatch in the world.

Today Casio is known for making things that simply do not break. The shock-resistant G-Shock line, born with the 1983 DW-5000C, turned a stopwatch into a survival tool, while the CLASSWIZ scientific calculators remain a classroom standard. Watches, calculators and keyboards — all carry the same Japanese instinct for affordable, futuristic function.

The Casio pieces worth knowing

F-91W-1
Standard F-91W
F-91W-1
The featherweight digital watch that made Casio minimalism feel universal.
$22.95 at CASIO
A158WA-1
Vintage A158W
A158WA-1
A silver Casio Vintage staple with the easy confidence of a digital bracelet watch.
$29.95 at CASIO
A168WA-1
A168
A168WA-1
The brighter Casio Vintage sibling, recognizable for its polished metal case and EL-backlight feel.
$39.95 at CASIO
AE-1200WH-1AV
AE-1200 World Time
AE-1200WH-1AV
The travel-nerd Casio: map display, world time, and a cockpit-like digital face.
$29.95 at CASIO
CA53W-1
Calculator Watch
CA53W-1
The keypad Casio that turns a wristwatch into a tiny arithmetic machine.
$39.95 at CASIO
DBC32-1A Data Bank
Multi-Lingual Data Bank
DBC32-1A Data Bank
A larger Casio Data Bank with calculator keys, memory, alarms, and full pocket-computer attitude.
$89.95 at CASIO
AQ-230A
Ana-Digi Vintage
AQ-230A
A slim analog-digital Casio that softens the calculator age into a dressier rectangle.
$59.95 at CASIO
MDV106B-2AV Duro
Duro Diver
MDV106B-2AV Duro
Casio's blue 200-meter diver proves the brand's tool-watch credibility outside the digital lane.
$89.95 at CASIO
DW5600E-1V
G-SHOCK 5600
DW5600E-1V
The square G-SHOCK descendant: compact, blunt, and instantly legible.
$99.95 at CASIO
DW6900-1V
G-SHOCK 6900
DW6900-1V
The round-front G-SHOCK with the three-eye display that became a streetwear shorthand.
$99.95 at CASIO
GA2100-1A1
2100 Octagon
GA2100-1A1
The slim octagonal G-SHOCK that made analog-digital toughness look architectural.
$110 at G-SHOCK
GMWB5000D-1 Full Metal
Full Metal 5000
GMWB5000D-1 Full Metal
The original G-SHOCK square translated into stainless steel, solar power, and Bluetooth utility.
$600 at G-SHOCK
BGD565-1 Baby-G
Baby-G Square
BGD565-1 Baby-G
A compact square Baby-G that keeps G-SHOCK toughness playful and wearable.
$99 at CASIO
PRW3500-1 PRO TREK
Triple Sensor Outdoor
PRW3500-1 PRO TREK
A field-instrument Casio built around sensors, solar charging, and outdoor legibility.
$365 at CASIO
ECB-2000D-1A EDIFICE Sospensione
EDIFICE Sospensione
ECB-2000D-1A EDIFICE Sospensione
A motorsport-inspired EDIFICE that turns suspension geometry into a solar analog-digital case.
$220 at eBay - Creation Watches

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Casio shopping FAQ

Is a Casio G-Shock worth it?+

If you want a watch you can knock around without a second thought, very much so. The G-Shock range of shock-resistant watches is built to take a beating, which is the whole point of the line that began with the 1983 G-Shock DW-5000C, now highly sought after by collectors. It is less about appreciation and more about a tough, reliable companion that earns its keep through sheer durability.

Why is the Casio F-91W so popular?+

Because it does the basics brilliantly for almost nothing. Released in 1989, the F-91W is the most sold wristwatch in the world, with an annual production of around 3 million units, and it is featherweight thanks to its resin build. Add reliable timekeeping and an instantly familiar design, and you have a genuine cultural touchstone that has barely changed in decades.

Should I get a G-Shock or the F-91W first?+

Think about how rough your days are. The F-91W is the ultralight everyday classic, perfect if you want something simple, cheap and nearly weightless on the wrist. The G-Shock is the heavier-duty choice, engineered for shock resistance and outdoor abuse. Both are honest Casio digital watches; the difference is how much punishment you expect to throw at it.

How does a Casio G-Shock compare to Seiko?+

They serve different appetites. G-Shock is about rugged digital toughness and advanced functions packed into a resin case, while Seiko leans toward traditional watchmaking, including mechanical movements and dress-to-diver designs. Casio's catalogue feels like a toolkit for situations; Seiko rewards a more classic ownership experience. Pick by whether you prize indestructibility or horological character.

Are Casio watches good quality for the money?+

That is exactly Casio's reputation. The company is known today for durable and reliable electronic products, and its watches were among the earliest quartz pieces, both digital and analog. Even its scientific calculators, like the CLASSWIZ series, are praised for cramming many functions in at an affordable price, which is the same value-first philosophy you find across its watches.

Who makes Casio, and where is it from?+

Casio Computer Co., Ltd. is a Japanese multinational electronics manufacturer headquartered in Shibuya, Tokyo. It was founded in 1946 by Tadao Kashio and formally established as Casio Computer Co., Ltd. in June 1957 by the four Kashio brothers, Tadao, Toshio, Kazuo and Yukio. So the watches come from a deep Japanese electronics heritage, not a traditional watch house.

What was Casio's first wristwatch?+

The CASIOTRON, released in 1974. It was the first digital wristwatch in the world to include an automatic calendar function. That set the template for what Casio would become known for: digital timekeeping with genuinely useful built-in features rather than just hands and a dial.

Why are Casio watches so light?+

Largely thanks to resin. In 1977 Casio released the retro-futuristic F100, one of the first wristwatches in the world made primarily out of resin, which made it very light compared with the heavy metal watches of the era. That breakthrough also made future Casio watches easier to mass-produce, and it is why pieces like the F-91W weigh almost nothing on the wrist.

What innovations is Casio known for beyond watches?+

Plenty. Casio introduced the first all-electric compact calculator, the Model 14-A, in 1957, and was an early digital camera innovator, including the QV-10 of 1995, the first consumer digital camera with an LCD on the back. It also became well known in the 1980s and 1990s for affordable home electronic keyboards. That breadth of electronics expertise feeds directly into its watch technology.

Has Casio put unusual features in its watches?+

Constantly, which is part of the brand's charm. The Casio AT-550 came with a built-in calculator and a touchscreen interface, and later watches added sensors for temperature, atmospheric pressure and altitude, plus radio synchronisation and GPS for accuracy. Casio even makes a "Prayer Compass" series designed to help Muslims pray on time and in the right direction. Function-stuffed watches are the brand's signature.

Has Casio faced any notable controversy?+

Yes, on the commercial side. In July 2019 the company's UK arm, Casio Electronics Co. Ltd, was fined £3.7 million after admitting resale price maintenance, a form of price-fixing, on its digital keyboards and pianos between 2013 and 2018, in breach of the UK's Competition Act 1998. It concerned its instruments business rather than its watches, but it is part of the company's public record.