- Stopwatch Measure times precisely
- 20 ATM Water resistant to 200 metres
- World time Times around the world at a glance
Casio G-Shock GA-100B-4AER • Men's Watch
Extreme Shock Resistance • World Time Function
Model: GA-100B-4AER
incl. VATplus shipping
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Casio G-Shock Classic
Description
The Casio G-Shock GA-100B-4AER is a men's watch that stands for ultimate robustness and sporty design. In striking red, this wristwatch is a real eye-catcher and at the same time an extremely durable companion for all situations in life. Thanks to its legendary G-Shock construction, it is virtually indestructible and offers useful functions for everyday life and travel.
Special Features of the Casio GA-100B-4AER Watch
- Extreme Shock Resistance: The case is designed to effortlessly absorb shocks and vibrations, protecting the movement.
- Antimagnetic: The watch is shielded against magnetic fields to ensure maximum precision.
- 20 Bar Water Resistance: Perfectly suitable for free diving without equipment – this watch withstands the pressure.
This watch belongs to the popular G-Shock collection, which is known worldwide for its unsurpassed durability and reliability.
Care instructions
Care Instructions for Wristwatches
Care & Cleaning
- Daily: Wipe the 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 the crown down tightly beforehand!!! - Not water-resistant: 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 let 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 every 5 years by a master watchmaker.
Storage & Handling
- Store watches separately, not directly with other jewelry (risk of scratches).
- Take off mechanical watches when winding, do not leave the crown pulled out.
Jewelry Care – How to keep your jewelry beautiful:
- Remove jewelry 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 jewelry.
Specifications
All details of the Casio GA-100B-4AER at a glance.
Basic data
- Target group
- Men
- Style / Occasion
- Sport
- Manufacturer
- Casio
- Model series / Collection
- G-Shock Classic
- Model number
- GA-100B-4AER
- Manufacturer model number
- GA-100B-4AER
- EAN / GTIN
- 4971850948339
- Display type
- Analog-to-Digital
- Water resistance in bar
- 20
- Colour
- Red, Black
- Other features
- World time, 5 alarms, snooze function, automatic calendar, speed display, shock-resistant, magnetically resistant, LED light
Case & Construction
- Case material
- Resin
- Case colour
- Red
- Case diameter in mm
- 51.2
- Case shape
- Round
- Case height in mm
- 16.9
- Weight
- 70 g
- Bezel material
- Resin
- Watch glass
- Mineral glass
- Case back
- Screwed
Dial & Display
- Dial colour
- Black
- Numerals & Indices
- Blended Index
- Second hand
- No
- Luminous material (Lume)
- Yes (pointers only)
Movement & Drive
- Drive type / Movement
- Quartz (battery)
- Calibre / Movement
- 5081
- Date display
- Yes
- Stopwatch function
- Yes
- Day display
- Yes
- Timer
- Yes
- Number of batteries
- 1
Strap & Clasp
- Strap material
- Resin
- Strap colour
- Red
- Strap width in mm
- 28
- Clasp
- Pin buckle
- Quick-release system
- No
- Max. wrist circumference
- 21.5 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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Our experts will be happy to advise you – in person and without obligation-
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