Swiss watches may steal the spotlight with their luxurious allure, but if you're after value and innovation, Japanese brands like Seiko and Casio are the better deal. These brands showcase the artistry and precision of Japanese watchmaking without breaking the bank. Seiko, with its mechanical masterpieces, and Casio, with its tech-savvy timekeepers, have shared the stage for decades, each carving their niche in the horological world. 

This piece isn't about declaring a winner, but more about appreciating what each brand brings to your wrist. We'll also delve into the fun realm of watch modding — a playground that offers endless possibilities for personalizing your timepiece.

Let’s get into it!


Brand Histories


Source: Seiko JP


Seiko's history begins in the heart of Tokyo, Japan, where Kintaro Hattori opened a watch and jewelry shop in 1881. By 1892, he established Seikosha, a factory dedicated to producing wall clocks, which marked the humble beginnings of the Seiko we know today.

The journey towards wristwatches began in 1913, with the introduction of the Laurel, Seiko's first wristwatch. Fast-forward to 1960, Seiko introduced their Grand Seiko line, aiming to produce the best luxury watch in the world, comparable and even surpassing Swiss watch standards.

In 1969, Seiko made a significant mark in the watchmaking industry by introducing the Astron, the world's first quartz wristwatch, dramatically impacting the entire watch industry by sparking the "quartz revolution."

Through the years, Seiko continued to innovate, producing diver's watches, chronographs, and kinetic watches, gaining a reputation for precision and durability. The company's philosophy of producing in-house components ensures a high standard of quality, making Seiko a respected name in both affordable and luxury watch markets.

From Kintaro Hattori's small shop to a globally recognized brand, Seiko's journey is a testament to its commitment to innovation, quality, and the relentless pursuit of watchmaking excellence.



The 4 Kashio Brothers: (from left to right) Toshio, Kazuo, Tadao, Yukio. Source: Ofix


Casio's journey began not in watchmaking, but in the world of electronics. Established in 1946 by Tadao Kashio, an engineer specializing in fabrication technology, Casio initially produced calculators and other electronic devices. This technological background would ultimately serve as a solid foundation when the company decided to venture into the watch industry.

In 1974, Casio introduced the Casiotron, a digital watch that not only displayed the time but could also automatically determine the number of days in a month. This breakthrough innovation mirrored Seiko's quartz revolution, emphasizing both companies' commitment to leveraging technology to redefine watchmaking standards.

Casio's most significant contribution to the watch industry came in 1983 with the release of the G-Shock series. Designed to resist mechanical shock and vibration, the G-Shock's durability and robustness pushed the boundaries of watch design, much like Seiko's innovations in diver's watches.

Just like Seiko, Casio emphasizes in-house production of components, ensuring consistency and quality. Over the years, Casio has expanded its portfolio, offering a range of watches that cater to different lifestyles and needs, from the rugged G-Shock and Pro Trek to the fashion-forward Baby-G and the classic Edifice.

Despite their different origins, both Seiko and Casio share a commitment to innovation, quality, and delivering value to their customers. Their storied histories reflect these shared values, shaping them into the respected watchmaking brands they are today.


Design Philosophies

Seiko and Casio, despite sharing the same national origin, approach watch design from different angles. Seiko leans towards traditional watchmaking principles, blending classic aesthetics with innovative technology. From elegant dress watches to rugged divers, Seiko watches exhibit a harmonious balance of form and function. The brand's design philosophy is rooted in Japanese culture, reflecting a minimalist yet intricate aesthetic seen in models from the affordable Seiko 5 to the luxurious Grand Seiko.


Source: Seiko


On the other hand, Casio embodies a more modernist approach. The brand's design philosophy revolves around creating timepieces that deliver practical functionality and resilience. Casio is known for incorporating advanced technology into their watches, ensuring they can endure harsh conditions while offering useful features. The G-Shock's chunky, bold aesthetic and the sleek, refined look of the Oceanus line illustrate Casio's versatility and commitment to creating watches for every lifestyle.


Popular Collections


SKX / Seiko 5

The Seiko SKX series is loved by many for its robust construction and timeless design. The collection includes the SKX007 and SKX009, two iconic diver's watches that are ISO-certified, ensuring their reliability underwater. The SKX's appeal lies in its simplicity, durability, and affordability. It offers an automatic movement, a unidirectional rotating bezel for timing dives, and luminescent markers for easy reading in low light. These features make it a reliable tool for divers and a stylish accessory for casual wear.



Source: Seiko


Seiko's Prospex line offers professional-grade specifications for land, sea, and air explorations. Prospex watches are known for their reliability, durability, and exceptional value. Standouts like the "Turtle" and "Samurai" models are favored for their unique case designs and reliable automatic movements. Whether you're a diver, pilot, or adventurer, the Prospex collection offers a watch designed to withstand the rigors of your lifestyle.


Grand Seiko

Grand Seiko represents the apex of Seiko's craftsmanship and technological prowess. Launched in 1960, this line was envisioned as Japan's finest luxury watch. Grand Seikos are renowned for their precision, durability, and beauty. Each piece showcases zaratsu-polished cases, multi-faceted hands and indices, and in-house movements that embody Seiko's innovative spirit. The Grand Seiko collection is for those who appreciate the subtleties of fine watchmaking and the pursuit of perfection.




Source: Ippo Japan Watch


The G-Shock line is Casio's crowning achievement when it comes to resilience. With a motto of "never break," these watches are built to withstand the harshest conditions, whether you're climbing mountains, surfing waves, or navigating concrete jungles. Not only do G-Shocks offer shock resistance, but they're also packed with features like world time, alarms, timers, and even Bluetooth connectivity in some models. These watches may be tough as nails, but with their wide range of styles and colors, they're not just for the rugged adventurer - they've got a little something for everyone.


Pro Trek

If you're an outdoor enthusiast, the Casio Pro Trek line has your name written all over it. These watches come equipped with features like altimeters, barometers, compasses, and thermometers, making them a multi-tool you can wear on your wrist. Plus, with solar-powered batteries, you won't have to worry about running out of juice in the great outdoors. The Pro Trek's digital display offers easy readability, and its robust build ensures it can handle whatever Mother Nature throws at it.



The Casio Oceanus line offers a sophisticated blend of advanced technology and sleek design. These watches feature atomic timekeeping, solar power, and world time, ensuring precision and reliability. But it's not all about the tech specs - the Oceanus collection is also about style. With their sapphire crystal, titanium construction, and ocean-inspired blue accents, these watches have a refined look that's perfect for the office or a night out. Owners of the Oceanus love it for its seamless blend of form and function, a watch that's as smart as it is stylish.


Modding Availability

The wonderful world of watch modding is like a treasure trove for horology enthusiasts, and Seiko is arguably the crown jewel. Seiko watches, especially models like the SKX, are famous in the modding community for their versatility and ease of customization. With a vast array of aftermarket parts available, from dials and bezels to hands and straps, the possibilities for creating a unique Seiko timepiece are virtually limitless.


Source: @casimods on IG


Casio, while not traditionally as mod-friendly as Seiko, is making waves in the modding scene, particularly with the G-Shock line. Although the options are somewhat more limited, enthusiasts have found creative ways to personalize their Casios, such as changing bands, bezels, and even modifying the watch face. It's a burgeoning field with lots of potential for growth.

Closing Thoughts

When comparing Seiko and Casio, it's clear that both brands offer impressive value and quality in their own ways. Seiko shines with its blend of traditional craftsmanship and innovative technologies, making it a top choice for those seeking a versatile, reliable timepiece with a classic aesthetic. Casio, on the other hand, excels in combining robust durability with practical features, perfect for those leading active lifestyles or seeking a tech-savvy watch.

In the realm of watch modding, Seiko still stands as the undisputed champion. Its watches offer a playground of possibilities for personalization that few other brands can match. However, Casio's presence in the modding community is growing, offering an exciting alternative for those looking to put a personal touch on their timepiece.

So, if you're intrigued by the idea of customizing a Seiko, or simply want to explore the diverse world of watch mods, be sure to check out namokiMODS. Our comprehensive range of high-quality mod parts offers everything you'll need to start your watch modding journey.

Happy modding!

23 mayo 2023 — Jeremiah A

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