Skip to product information
1 of 8
Men's Watches

Casio G-Shock GA-B2100C-9AER Men's Watch • Tough Solar • Smart Features

Casio G-Shock GA-B2100C-9AER Men's Watch • Tough Solar • Smart Features

Regular price £122.34
Regular price £137.96 Sale price £122.34
Taxes included.
In stock
Free shipping

100-Day Satisfaction Guarantee

You have 100 days to test your new favorite items at your leisure. If something doesn't fit or you don't like it, you can easily return it.
24/7 Bestellhotline: +49 (0) 5405 80 444 76
Rund um die Uhr bequem telefonisch bestellen.

Für eine fachkundige Produktberatung wenden Sie sich gerne an unser Serviceteam oder schreiben Sie an service@uhren4you.de.
(Die Hotline dient rein der Bestellannahme).
Authorized Dealer
Warranty extension
13,000 satisfied customers
PayPal Visa MasterCard Rechnung Vorkasse Klarna ApplePay GPay

Model Number: GA-B2100C-9AER

View full details

Product Details

Description

The Casio G-Shock GA-B2100C-9AER is a state-of-the-art men's watch that combines extreme durability with intelligent technology. Thanks to its Tough Solar power system, it is environmentally friendly and always ready for action, while Bluetooth connectivity ensures a seamless connection to your smartphone. The striking yellow design makes this wristwatch a real eye-catcher.  

Special features of the Casio GA-B2100C-9AER watch

  • Environmentally friendly solar power: Tough Solar technology ensures a reliable and sustainable energy supply.
  • Smart connectivity: The watch can be easily connected to your smartphone via Bluetooth to adjust settings and synchronize the time precisely.
  • Extreme shock resistance: The Carbon Core Guard structure reliably protects the module from impacts and shocks.

This watch is part of the popular G-Shock 2100 series, known for its iconic octagonal design and resilience.

Technical Data

Basic data

Target group

Men

Style / Occasion

Sport

Manufacturer

Casio

Model series / Collection

G-Shock Classic

Model number

GA-B2100C-9AER

Manufacturer model number

GA-B2100C-9AER

EAN / GTIN

4549526322785

Display type

Analog-Digital

Water resistance in bar

20

Colour

Yellow

Black

Other features

Bluetooth, World time, Alarm, Stopwatch, Lighting, Lap memory

Case & Construction

Case material

Resin

Case colour

Yellow

Case diameter in mm

45.4

Case shape

Angular

Case height in mm

11.9

Weight in grams

52

Bezel material

Fixed

Watch glass

Mineral glass

Case back

Screwed

Dial & Display

Dial colour

Black

Numerals & Indices

tick mark

Second hand

No

Luminous material (Lume)

Yes (Pointers & Indices)

Movement & Drive

Drive type / Movement

Solar

Calibre / Movement

5689

Date display

Yes

Stopwatch function

Yes

Day display

Yes

Strap & Clasp

Strap material

Resin

Strap colour

Yellow

Black

Strap width in mm

26.0

Clasp

Pin buckle

Care instructions

Watch Care Instructions

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 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 the watch separately, not directly with other jewelry (risk of scratching).
  • 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 like chlorine, salt water, or disinfectants.
  • Apply cosmetics and perfume first, then put on jewelry.

Scope of delivery

Product questions

Find your perfect fit

Casio

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.

Christian Wagner

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

  • 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

1 of 4