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Casio G-Shock Octagon GM-2100N-2AER Watch

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Casio G-Shock Octagon GM-2100N-2AER Watch

Waterproof and shockproof sports watch with quartz movement. The octagonal case is styled after the Japanese manufacturer's first G-Shock model, launched in 1983.

Durable design

The watch's mechanism is enclosed in an inner case made of resin reinforced with stainless steel. Rugged construction combined with the G-Shock system ensures high resistance of the watch to shock and mechanical damage. The model is characterized by high water resistance and is resistant to submersion up to 200 meters (20 bar), which allows safe use while swimming or even diving.

Comfortable wearing of the watch on the wrist is ensured by a strap made of elastic material, fastened with a metal buckle. The material used is resistant to the damaging effects of moisture and sweat, making it ideal for various activities.

Dial, LED backlight

The dial with hands and display allow digital-analog time reading, and the time is displayed in 12/24-hour format. Dual LED backlighting, illuminator and Neobrite fluorescent material coating of the hands allow the watch to be operated in low light or no light at all.

5 alarms, calendar, world time function

In addition, the watch features: 5 daily alarms, an expanded calendar, a stopwatch with a measurement length of up to 100 h and an accuracy of 1/100 s, and a countdown timer for up to 24 h. The world time function allows you to read the time in 48 cities around the world.

Main features

  • G-Shock system
  • immersion up to 200 meters
  • durable design
  • quartz movement
  • illuminator
  • double LED backlight
  • Neobrite
  • calendar
  • stopwatch
  • timer
  • world time function
  • 5 alarms

Technical data

Mechanism: quartz Miyota
Time format: 12/24
Watchcase: plastic
Glass: mineral
Strap: plastic
Water resistance: 20 bar (200 m)
Watchcase dimensions: 44 x 49 mm
Thickness of the watchcase: 17 mm
Maximum strap circumference: 210 mm
Weight: 52 g
Manufacturer: Casio, Japan

Casio


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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
Smartwatch No
Type of mechanism Quartz
Watch power supply battery
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 4549526304828
Manufacturer code GM-2100N-2AER
Brand Casio

Reviews with photos

Number of reviews: 1

  1. A...
    100%

    The metal case increases the durability and improves the appearance of this model, while still being comfortable to wear. This is one of the best models from this brand – reliable and classic.

No reviews

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