A nice watch, not too big like other G-Shocks, feels good to wear on the wrist. Additionally, the subdued design is a plus in my opinion, unlike some of the more overdone models. Solar, Bluetooth - cool extras. Overall, lots of functions I still haven't figured out - operation is a bit complicated. I recommend it to everyone.
Casio G-Shock Octagon GA-B2100-1A Watch
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€129.68
Manufacturer's suggested price
€148.58
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€129.68
Shock-resistant and waterproof sports timepiece featuring a quartz movement. Its octagonal case draws inspiration from the debut G-Shock model by the renowned Japanese brand, launched in 1983.
The watch movement is protected by an internal Carbon Core Guard housing crafted from carbon-fiber-reinforced resin. Robust engineering, together with the G-Shock system, provides exceptional protection against impacts and physical stress. High water resistance is a hallmark of this model, withstanding submersion up to 200 meters (20 bar)—ideal for swimming and diving activities.
A flexible material strap, secured by a metal buckle, ensures a comfortable fit on the wrist. The chosen material resists moisture and perspiration, making it highly suitable for various physical pursuits.
An analog-digital dial with hands and a digital display supports digital-analog timekeeping, with 12/24-hour format options. Twin LED illumination plus hands coated with fluorescent Neobrite grants easy readability in dim conditions or total darkness.
Bluetooth connectivity enables integration with the Casio Watches mobile app, allowing automatic time updates, alarm settings, timer and reminders configuration, and remote adjustment of watch functions. The app also supports phone-finding features using the watch.
Additional features include 5 daily alarms, a comprehensive calendar, a stopwatch with up to 100 hours of measurement and 1/100-second precision, and a timer with a countdown of up to 24 hours. The world time function provides time information for 31 time zones.
Equipped with Tough Solar technology, the device harnesses solar power and can operate for up to 7 months without exposure to light after a full charge.
Technical data
Color: Black
Mechanism: Miyota quartz
Time format: 12/24
Watchcase: plastic
Glass: mineral
Strap: plastic
Water resistance: 20 bars (200 m)
Case dimensions: 48.5 x 45.4 mm
Case thickness: 11.9 mm
Max strap circumference: 210 mm
Weight: 52 g
Manufacturer: Casio, Japan
Militaria.pl is a premium dealer of Casio.
Casio is a Japanese brand founded in 1946, which has remained one of the most recognizable consumer electronics manufacturers in the world for decades. It gained global fame with its iconic G-Shock series from the 1980s, valued for its high resistance to shocks, water, and extreme conditions. The company consistently develops its technologies, introducing innovations such as Tough Solar - a solar power system - and Wave Ceptor - radio time synchronization. Casio watches are popular among professionals and people looking for reliable models for everyday use and outdoor activities. The first G-Shock (model DW-5000C), designed in 1983 by engineer Kikuo Ibe, was so durable that it was tested by dropping it from the tenth floor, and yet it still worked flawlessly. Today, Casio is a symbol of innovation, durability, and timeless style.
| Gender | Men's |
|---|---|
| Smartwatch | No |
| Body material | Synthetic |
| Type of mechanism | Quartz - solar |
| Watch power supply | Solar power supply |
| Strap | Plastic |
| Glass | Mineral |
| Alarm | Yes |
| Date stamp | Yes |
| Stopwatch | Yes |
| Backlight | Yes |
| Waterproof | 20 ATM / 200 m |
| Shockproof | Yes |
| NFC | No |
| Calendar | Yes |
| Compass | No |
| GPS | No |
| Barometer | No |
| Thermometer | No |
| Altimeter | No |
| Chronograph | No |
| Pedometer | No |
| Calorie counter | No |
| Heart rate measurement | No |
| Pulse oximeter | No |
| Weight | 52 g |
| EAN | 4549526322884 |
| Manufacturer code | GA-B2100 -1AER |
| Brand | Casio |
| EAN |
Reviews with photos
Review summary
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Number of reviews: 2
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I've had it for a year and a half, bought from another shop but I'll allow myself a short review. The look and quality are great! It's not huge like typical G-Shocks, which, considering my skinny wrist, would look ridiculous. Works great, solar panel is a plus. I won't write about the functions, everyone can read up. In short, I recommend it!
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