- Stopwatch Measure times precisely
- 20 ATM Water resistant to 200 metres
- World time Times around the world at a glance
Casio G-Shock GA-2100-1A2ER • Men's Watch
Extreme Shock Resistance • 20 Bar Water Resistance
Model: GA-2100-1A2ER
incl. VATplus shipping
Couldn't load pickup availability
- Authorised dealer
- Warranty extension
- 13,000 happy customers
Legal guarantee:
Casio G-Shock
Description
The Casio G-Shock GA-2100-1A2ER is an exceptional men's watch known for its extreme durability and striking design. This wristwatch was developed for men who refuse to compromise on resilience while still valuing style. Its impressive shock resistance reliably protects the precise quartz movement during all activities, while the high water resistance of 20 bar makes it the perfect companion for adventures in and on the water.Â
Special features of the Casio GA-2100-1A2ER watch
- Extreme shock resistance: Thanks to the legendary G-Shock technology, this watch withstands the toughest conditions without any issues.
- 20 bar water resistance: Perfectly suitable for swimming, snorkeling, and many water sports.
- Smart world time function: Keep track of the time in different time zones effortlessly.
This watch is part of the popular G-SHOCK Classic collection, which is appreciated worldwide for its unmatched longevity and iconic designs.
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-2100-1A2ER at a glance.
Basic data
- Target group
- Men
- Style / Occasion
- Sport
- Manufacturer
- Casio
- Model series / Collection
- G-Shock
- Model number
- GA-2100-1A2ER
- Manufacturer model number
- GA-2100-1A2ER
- EAN / GTIN
- 4549526319235
- Display type
- Analog-Digital
- Water resistance in bar
- 20
- Colour
- Anthracite
- Other features
- World time, 5 daily alarms, LED light, Shock-resistant, Hand Shift Feature, Carbon-reinforced resin case (Carbon Core Guard)
Case & Construction
- Case material
- Resin
- Case colour
- Black
- Case diameter in mm
- 45.4
- Case shape
- Round
- 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
- line index
- Second hand
- No
- Luminous material (Lume)
- Yes (pointers only)
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
- 16
- 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
We advise you personally
Our experts will be happy to advise you – in person and without obligation-
Telephone
+49 (0) 540 580 444 60
Sara & Emilia will personally advise you:
Mon–Fri: 9:30 AM–5 PM -
Email
service@uhren4you.de
we personally respond to every message within 24
hours. -
Service Center
Complaint or return?
You'll find quick answers in our Service Center
-
100-day return policy
Test in peace – full refund, no questions asked
-
36 months warranty
Triple protection – free extension on many products.
-
Certified Specialist Dealer
Secure shopping with the expert for watches and jewelry.
-
Satisfied customers
Over 13,000 customers trust our expertise
