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A Closer Look at The Casio G-Shock G-Steel GSTB400-1A Watch

Casio G-Shock G-Steel GSTB400-1A Watch

Casio is may not be one of the first brands that come to mind in the luxury watches category. That said, even if you do not wear watches as part of your daily attire, it is always good to know what the "competition" is up to. Doesn't mean it lags in quality since there is the Casio G-Shock G-Steel GSTB400-1A Watch, which happens to be their newest entry into the high-end watch genre. Get more insights about this watch as we take a closer look at the GSTB400-1A.

Introducing the G-Shock

In 1983, Casio, the inventor of the calculator watch, introduced G-Shock to the market. The G-Shock was different from all other watches on the market because it did not have an hour or minute hand. Instead, Casio developed a dual-time digital readout system, allowing users to view two time zones simultaneously. Today, these watches come with shock resistance that is 5-10x more than the usual digital quartz watches. They also have a sturdy and reliable antimagnetic capability for up to 300,000 atm of magnetic force. Individuals who prefer the G Steel watch brand have always wanted something to wear with a suit or everyday casual clothing. Previous models have succeeded in terms of design, but have struggled with wearability due to their size, weight, and thickness. However, Casio has the new GST-B400 G Steel watch and it's different. It comprises several tech advancements, is light, slimmer, and the most wearable G Steel available on the market.


The Casio G-Shock G-Steel GSTB400-1A Watch is scratch-resistant and water-resistant up to 200 meters. Its earthquakes of over 50 Gs are one feature you cannot help but love this Casio G-Shock G-Steel GSTB400-1A Watch. It is much thinner than previous models without sacrificing features like Bluetooth and solar power. Also, its components are miniaturized significantly, and its modules thinned, which substantially reduced power consumption. According to Casio, the GSTB400 is made possible through the further thinning of its modules and miniaturization of parts without sacrificing solar function and Bluetooth. It has also reduced power consumption significantly. You will love the use of angles on the case, which draw some inspiration from an F-117 Nighthawk stealthier airplane. The watch also lights attractively. Casio has used a brushed finish on the metal, and less reflection on the mineral glass, making this watch crystal clear all the time. The use of white text on a dark background makes its dial easy to read. Also, the GST-B400's light illuminates its two digital complications, which can be hard to read on their own in daylight.


GSTB400-1A is an elegant watch with fewer button guards, which facilitates the use of large yet slim stainless steel buttons that are easy to operate. The top bezel features four unique finishes that create a stylish effect. It also changes the appearance of the metal's texture based on the viewing angle. According to A Blog to Watch, the G-Shock's monocoque construction, which includes a Carbon Core Guard, has helped slim the GST-B400 down. It is effective on this watch compared to the GST-B300 and B200 watches. Carbon fiber is very light, immensely strong, and malleable, making it to be set in various shapes. This makes it suitable for a G-Shock watch because it maintains strength without compromising the design or increasing weight. The carbon fiber combined with resin to create the monocoque is then attached to a stainless steel bezel and mineral glass on top of the dial. There are different color combinations, some with a firm resin strap and others with stainless steel bracelets. If you are looking for a lighter version, you can opt for the resin strap. The guards around the four buttons have been reduced, and the Benzel slightly obscures the outer screws that hold the case together. The GST-B400's case measures 46mm by 49mm and differs from the GST-B100.

How wearable is it?

Its 80 grams weight and 12.9 thickness may sound much. However, this GST-B400 G Steel is lighter and smaller than the GST-B100, which is 100grams with a thickness of 14.1mm. Also, the 5mm thick GST-B300 and GST-B200, which is 14.9mm, make a substantial difference on your wrist. To explain this further, the Apple Watch Series 6 is 10.7mm thick, while Samsung Galaxy Watch 3 is 11.1mm thick. This Casio model is the thinnest G-STEEL series and can withstand a high impact-level resistance. The back cover is approximately 1mm thicker than the GSTB100 model, meaning it puts less pressure on your wrist over time. If you are asking what is new on the Casio G-Shock G-Steel GSTB400-1A Watch, it is worth noting that this is not a full smartwatch but a connected watch. The smartphone link complements its existing features instead of introducing new savvy components.

You can use the excellent G-Shock connect app, which has a reliable link, stores all your connected watches, and has an admirable design. Also, users can set timers and alarms, adjust the standard and world time, and implement the Time and Place feature. Integrating it with the GPS on your phone can help you create logs of the places you visit by long-pressing the search button of your watch. This records every location on the map available in the app. Digitrend notes that the Casio G-Shock G-Steel GSTB400-1A Watch is not a rival to the Apple Watch or other touchscreen smart watches. Instead, the connected features are designed to add simplicity to regular tasks performed on the watch. Changing the world time in the app is easier and less-tasking compared to using buttons. Additionally, there is no need to charge the battery since solar charging takes care of this. It lasts for seven months when fully charged and not exposed to any light. There is a battery indicator in the app and on the watch, allowing you to know whether it needs to see some sunlight. The Casio G-Shock G-Steel GSTB400-1A Watch is an attractive watch with a sleek and durable design. It is one of the world's best-selling and most recognizable watches on the market. GSTB400-1A has everything you need in a tactical watch, including military time and a practical two-inch fluorescent display with afterglow for night vision.

Lily Wordsmith

Written by Lily Wordsmith

Lily Wordsmith is a freelance writer who has had a love affair with the written word for decades. You can find her writing blog posts and articles while sitting under a tree at the local park watching her kids play, or typing away on her tablet in line at the DMV. In addition to her freelance career, she is pursuing ebook writing with an ever-growing repertoire of witty ebooks to her name. Her diversity is boundless, and she has written about everything from astrobotany to zookeepers. Her real passions are her family, baking desserts and all things luxe.

Read more posts by Lily Wordsmith

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