- Stopwatch Measure times precisely
- 20 ATM Water resistant to 200 metres
- World time Times around the world at a glance
Casio G-Shock GA-2100-1A3ER • Men's Watch
Extreme Shock Resistance • World Time Function
Model: GA-2100-1A3ER
incl. VATplus shipping
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Casio G-Shock
Description
The Casio G-Shock GA-2100-1A3ER is a men's watch that combines legendary durability with a striking, urban design. Thanks to the innovative Carbon Core Guard structure, this wristwatch is exceptionally shock-resistant and withstands the toughest conditions. At the same time, it offers smart features such as a precise world time function, making it the ideal companion for modern men and globetrotters.Â
The octagonal case and minimalist dial make a clear fashion statement, while the watch makes no technical compromises. It is the perfect all-rounder for adventure, sports, and demanding everyday life.
Special features of the Casio GA-2100-1A3ER watch
- Extreme shock resistance: The Carbon Core Guard structure reliably protects the module from impacts and vibrations.
- Water-resistant up to 20 bar: Perfectly suitable for swimming, snorkeling, and water sports.
- Practical world time function: Displays the time in up to 29 different time zones, ideal for travelers.
This watch is part of the popular G-SHOCK 2100 series, known for its iconic octagonal design and maximum durability.
Care instructions
Care Instructions for Wristwatches
Care & Cleaning
- Daily: Wipe case and strap with a soft, dry cloth to remove dirt and sweat.
- Water-resistant watches: Clean with mild soapy water and a soft brush, rinse, and dry thoroughly.
Important: Screw down the crown tightly beforehand!!! - Not waterproof: Clean only dry or slightly damp, do not use water or cleaning agents.
- Avoid: Aggressive agents, perfume, cosmetics, and heat.
- Leather straps: Do not soak, clean only slightly damp and allow to dry away from heat.
- Water resistance: Do not wear when showering or bathing, have it checked annually.
- Battery (quartz): Have a dead battery replaced immediately.
- Mechanical watches: Service by a master watchmaker every 5 years.
Storage & Handling
- Store the watch separately, not directly with other jewelry (risk of scratching).
- Take off mechanical watches when winding, do not leave the crown pulled out.
Jewellery Care – How to keep your jewellery beautiful:
- Remove jewellery before showering, bathing, and sports.
- Avoid direct sunlight – wood, leather & co. can fade.
- Hands off – constant touching leaves grease and dirt.
- No aggressive cleaning agents such as chlorine, salt water, or disinfectants.
- Apply cosmetics and perfume first, then put on jewellery.
Specifications
All details of the Casio GA-2100-1A3ER at a glance.
Basic data
- Target group
- Men
- Style / Occasion
- Sport
- Manufacturer
- Casio
- Model series / Collection
- G-Shock
- Model number
- GA-2100-1A3ER
- Manufacturer model number
- GA-2100-1A3ER
- EAN / GTIN
- 4549526319280
- Display type
- Analog-to-Digital
- Water resistance in bar
- 20
- Colour
- Anthracite
- Other features
- World Time, Shock-Resistant, Alarms, Carbon Core Guard, Hand Shift Feature, Button Tones On/Off, Light
Case & Construction
- Case material
- Resin
- Case colour
- Black
- Case diameter in mm
- 45.4
- Case shape
- Angular
- Case height in mm
- 11.8
- Weight
- 51 g
- Bezel material
- Fixed
- Watch glass
- Mineral glass
- Case back
- Screwed
Dial & Display
- Dial colour
- Black
- Numerals & Indices
- Bar Index
- Second hand
- No
- Luminous material (Lume)
- Yes (Pointers & Indices)
Movement & Drive
- Drive type / Movement
- Quartz (Battery)
- Calibre / Movement
- 5611
- Date display
- Yes
- Stopwatch function
- Yes
- Day display
- Yes
- Timer
- Yes
- Number of batteries
- 2
Strap & Clasp
- Strap material
- Resin
- Strap colour
- Black
- Strap width in mm
- 25
- Clasp
- Pin buckle
- Quick-release system
- Yes
- Max. wrist circumference
- 22 cm
Questions about this product?
We're happy to help.Shipping & returns
Shipping
We ship with DHL GoGreen; large items such as grandfather clocks are sent by freight carrier.
Shipping costs for your country are shown in the cart.
Returns
You have 100 days to try your order at your leisure. If something isn't right, simply send it back.
Casio – Functional Watches for Modern Everyday Life
Casio became known in the 1970s for wristwatches that redefined technology and everyday usability. Digital displays, innovative functions, and robust construction made the brand popular worldwide.
To this day, Casio wristwatches stand for reliability and practical use. They are aimed at people who value functionality, durability, and a clear price-performance ratio.
Shop Worry-Free & Securely
Whether for yourself or as a gift: We guarantee you 100% original products from renowned manufacturers. Your order will leave our premises insured and will reach you the very next business day.
Should the item not fit perfectly, take advantage of our generous 100-Day Returns – uncomplicated and free of charge. Experience for yourself why over 13,000 customers have found their timepieces with us.
We answer your questions
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