Must-Have Casio Watches for Your Collection: Icons You Can’t Ignore

Author : Casio Store | Published On : 30 Mar 2026

In the world of horology, where luxury brands often demand the price of a small house, Casio watches stands as a defiant outlier. It is perhaps the only brand that is equally respected by billionaire tech moguls, professional divers, military personnel, and high-fashion enthusiasts. Collecting watches often feels like an expensive pursuit, but Casio proved that "iconic" does not have to mean "inaccessible."

A Casio collection is more than just a set of timekeepers; it is a journey through digital revolution, rugged engineering, and retro-futuristic design. Whether you are just starting your watch journey or you are a seasoned collector looking for "soul" in a timepiece, there are certain Casio models that are non-negotiable. These are the watches that defined eras and continue to dominate wrists today.

The Digital Legend: Casio F-91W

You cannot talk about Casio without starting with the F-91W. Introduced in 1989, this watch is the definition of "minimalist functionalism." It is thin, light, and almost impossible to kill. While it was originally designed as a basic digital watch for the masses, it has gained a cult following that transcends its humble price tag.

Why it’s an icon: The F-91W is a masterpiece of efficiency. It tells the time, has a daily alarm, a 1/100-second stopwatch, and an hourly time signal. Its battery life is legendary, often lasting seven to ten years. In a world of smartwatches that need charging every night, the F-91W is a refreshing reminder of set-it-and-forget-it reliability. Collectors love it because it represents the purest form of a tool watch. It doesn't pretend to be anything other than a reliable way to keep time.

The "Casio Royale": World Time AE-1200WH

The AE-1200WH earned the nickname "Casio Royale" because of its striking resemblance to the Seiko watch worn by James Bond in "Octopussy." With its square case, world map display, and analog-style digital sub-dial, it looks like something straight out of a 1980s Cold War spy thriller.

Why it’s an icon: Functionality-wise, this watch is a powerhouse. It can track four different time zones simultaneously and features a world time map that highlights the selected zone. For travelers or those working in global industries like digital marketing, this functionality is genuinely useful. Beyond utility, it is a favorite for "modders"—hobbyists who swap the straps for leather or add filters to the screen. It is one of the most versatile Casios in existence, looking just as good on a stainless steel bracelet as it does on a rugged resin strap.

The King of Toughness: G-Shock DW-5600

In 1983, Kikuo Ibe, a Casio engineer, dropped a pocket watch given to him by his father, and it shattered. This led to the "Triple 10" concept: a watch that could survive a 10-meter drop, have 10-bar water resistance, and a 10-year battery life. The result was the G-Shock. The DW-5600 is the direct descendant of that original square design.

Why it’s an icon: The "Square" G-Shock is the most recognizable tough watch in the world. It has been flight-certified by NASA for space missions and is a staple for special forces and emergency responders. It utilizes a "hollow structure" case where the internal module "floats" to absorb shocks. If you only own one G-Shock, it should be this one. It is the ultimate tool watch—rugged, historic, and virtually indestructible.

The Retro-Chic Masterpiece: Casio A168WA

If the F-91W is the functional workhorse, the A168WA is its stylish, stainless-steel-clad cousin. This watch is a staple of "retrowave" fashion. With its polished chrome finish and vintage electro-luminescence backlight, it captures the aesthetic of the 80s and 90s perfectly.

Why it’s an icon: Unlike the F-91W, which has a somewhat dim side-light, the A168 features the "Illuminator" backlight, which glows a beautiful blue-green across the entire screen. It is the perfect "office" Casio—it fits under a shirt cuff but still carries that quirky, digital personality. It’s a favorite among creatives and fashionistas who want a watch that feels nostalgic yet timeless.

The Calculator Watch: CA-53W

Before smartwatches, there was the Casio Calculator watch. Famously worn by Marty McFly in "Back to the Future," the CA-53W is a piece of wearable computing history. While the buttons are tiny and somewhat difficult to press with modern fingers, the "cool factor" is off the charts.

Why it’s an icon: It represents a time when the future felt like it was arriving on our wrists. It includes an 8-digit calculator, a second time zone, and a stopwatch. Owning one is like owning a piece of 1980s pop culture. It is a conversation starter and a reminder of Casio’s role in the early days of personal electronics.

The "CasiOak": G-Shock GA-2100

Introduced only a few years ago, the GA-2100 became an instant legend, earning the nickname "CasiOak" due to its octagonal bezel that mirrors the high-end Audemars Piguet Royal Oak. It was a departure from the "chunky" G-Shock aesthetic, offering a much slimmer, more wearable profile.

Why it’s an icon: The GA-2100 proved that G-Shock could be sophisticated and modern. It features a Carbon Core Guard structure, making it incredibly light but still retaining all the shock resistance the brand is known for. Its ana-digi (analog and digital) display offers the best of both worlds. It has become a gateway watch for many people into the world of G-Shocks because it fits smaller wrists so well.

The Professional Diver: Casio Duro MDV-106

Casio isn't just about digital screens; they also make one of the best value-for-money analog dive watches in the world: the MDV-106, better known as the "Duro." Famously worn by Bill Gates, this watch features a 200-meter water resistance and a classic diver aesthetic.

Why it’s an icon: The Duro punches way above its weight class. It has a beautiful sunray dial, a clicking unidirectional bezel, and a screw-down crown—features usually reserved for watches costing five times as much. It is the perfect vacation watch; you can take it scuba diving in the morning and wear it to a nice dinner in the evening. It’s a testament to Casio’s ability to master any genre of watchmaking.

The High-Tech Traveler: Casio Oceanus OCW-S100

For those who want a premium Casio that rivals Swiss luxury in finishing, there is the Oceanus line. Often a "Japan Only" release (JDM), the Oceanus represents the pinnacle of Casio’s solar and radio-controlled technology.

Why it’s an icon: The Oceanus uses Tough Solar technology and Multi-Band 6, meaning it syncs with atomic clocks around the world to ensure it is never off by even a second. The sapphire crystal and titanium construction make it incredibly premium to the touch. It is the "stealth wealth" choice for Casio collectors—a watch that looks like a high-end luxury piece but maintains the innovative spirit of a Japanese electronics giant.

Why Collect Casio?

Collecting Casio watches is different from collecting any other brand. It isn't about the resale value or showing off wealth. It is about personality.

1. Variety: You can have a collection that includes a calculator, a world timer, a professional diver, and an indestructible tank, all from the same brand.
2. Innovation: Casio was one of the first to put GPS, heart rate monitors, and Bluetooth into watches, yet they still respect their heritage by keeping 30-year-old designs in production.
3. The Community: The Casio community is one of the most welcoming in the world. Whether you spent $20 or $500, you are part of the "Watch Fam."

Conclusion

A watch collection without a Casio feels incomplete. These watches are the "honest" timekeepers of the world. They don't pretend to be status symbols; they are tools designed to make life easier, tougher, and more punctual. From the minimalist F-91W to the sophisticated "CasiOak," every model tells a story of human ingenuity.

If you are looking to build a collection that you can actually wear, use, and enjoy every single day without fear of a scratch or a dead battery, look no further than these icons. They have ignored trends for decades, and in doing so, they have become the ultimate trend themselves.