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Casio G-Shock Metal Covered GM-2100B-3AER watch
Casio G-Shock Metal Covered GM-2100B-3AER watch
Casio G-Shock Metal Covered GM-2100B-3AER watch
Casio G-Shock Metal Covered GM-2100B-3AER watch
Casio G-Shock Metal Covered GM-2100B-3AER watch
Casio G-Shock Metal Covered GM-2100B-3AER watch
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Casio G-Shock Metal Covered GM-2100B-3AER watch

Casio
Reviews: 2 
Rating:
100% of 100
Casio
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Casio G-Shock Metal Covered GM-2100B-3AER watch

Sports watch with a quartz mechanism, which is waterproof and shock-resistant. Black octagonal watchcase made from a mix of steel and carbon fibre. The green analog-digital dial features LED illumination and a Neobrite coating, allowing easy reading of the time in the dark. The illumination is manually activated via a button located on the side of the watch. The dial is protected by mineral glass with a fifth degree of hardness on the Mohs scale.

Neobrite

Durable construction

The G-Shock system provides increased resistance of the watch to shocks and mechanical damage. The model stands out with high water resistance and is resistant to submersion up to 200 metres (20 bars), allowing its use during swimming and diving.

Miyota quartz mechanism, battery powered, stopwatch, world time function

Precise timekeeping is ensured by the Miyota quartz mechanism, powered by two SR726W batteries, guaranteeing 3 years of uninterrupted operation. The daily time can be displayed in 12/24-hour format. Additionally, the watch features 5 daily alarms with a snooze function, an extended perpetual calendar, a stopwatch capable of measuring up to 100 hours with 1/1000 second precision, and a timer counting down time up to 24 hours. The world time function facilitates checking the time in various time zones.

Flexible strap

The set includes a flexible strap made of green plastic. The strap's circumference is adjustable with a metal buckle.

Main features

  • G-Shock system
  • submersion up to 200 metres
  • durable construction
  • Neobrite fluorescent coating on the hands
  • Miyota quartz mechanism
  • mineral glass
  • LED illumination
  • stopwatch
  • timer
  • calendar
  • 5 alarms
  • world time function
Casio


MILITARY is a premium dealer of Casio.


Casio is a Japanese brand founded in 1946, known worldwide as one of the leaders in consumer electronics. A breakthrough moment in the company's history was the launch of the G-Shock series in the 1980s, which gained cult status thanks to its exceptional resistance to shocks, water, and extreme environmental conditions. Casio is constantly developing its technologies, introducing features such as Tough Solar - a solar power system - and Wave Ceptor - time synchronization using radio waves, which ensures precision and reliability. The brand's watches are popular among both professionals and users looking for durable solutions for everyday use and outdoor activities. The first G-Shock model – DW-5000C, designed by engineer Kikuo Ibe in 1983, passed a drop test from the tenth floor and continued to function flawlessly, which became the foundation of the series' legend. Today, Casio is synonymous with innovation, reliability, and timeless design.

More Information
Gender Men's
Smartwatch No
Body material stainless steel
Type of mechanism Quartz
Watch power supply Battery SR726W X 2
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 72 g
EAN 4549526304729
Manufacturer code GM-2100B -3AER
Brand Casio
Neobrite feature
Neobrite
Neobrite is a luminescent coating used in Casio G-Shock watches, applied to the hands and indices of the watch face. When exposed to daylight or artificial light, it glows in the dark, ensuring good readability at night. It is non-toxic, durable, and does not require battery power.

Reviews with photos

Review summary

Automatically prepared based on reviews

Number of reviews: 2

  1. A... Review confirmed by purchase
    100%

    Brilliant watch – durable, stylish and waterproof. I have no problems using it in the shower and you can submerge it even up to 200 metres. Initially, setting it up with the instructions can be a bit complicated, but everything works correctly and you don't need to take it to a watchmaker. It has world time memory and the ability to set the digital time, which can be transferred to the hands. The days of the week are a little more difficult to set, but in the end, everything worked out and I’m very satisfied. The watch is unique and also has a date display. I recommend it because I haven’t found it cheaper anywhere – if you have ksk points, it’s worth using them!

  2. M... Review confirmed by purchase
    100%

    Great watch, almost unnoticeable on the wrist. The dial is clear and can be customised (option to choose time and date format). I recommend it to anyone looking for a solid and stylish watch that will last longer than typical models.

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