G-Shock GA-2100-1AER Octagon Series Watch

G-Shock Watch Alarm Carbon Core Guard Mens Pre-Order GKF-395

4.6 (57)

G-Shock GA-2100-1AER Octagon Series Watch

Overall Rating: 4.9 / 5 (average from multiple review sources, as of 20 Oct 2026)
Based on a total of 6,004 customer reviews from independent review platforms.

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1-3 working days
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£74.00
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G-Shock GA-2100-1AER Octagon Series Watch

Overall Rating: 1.2 / 5 (average from multiple review sources, as of 17 Oct 2026)
Based on a total of 24,155 customer reviews from independent review platforms.

Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

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Will usually delivered within 2 - 3 working days of receiving cleared payment.
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£74.00
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Casio G-Shock Mens Watch GA-2100-1AER Octagon Black Carbon Core Guard Alarm 200M

Overall Rating: 1.2 / 5 (average from multiple review sources, as of 17 Oct 2026)
Based on a total of 24,155 customer reviews from independent review platforms.

Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

All brand names and logos are the property of their respective owners.

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pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Will usually delivered within 1 - 3 working days of receiving cleared payment.
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£76.00
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Casio G-Shock 2100 Utility Black Series Watch GA-2100-1AER

Overall Rating: 1.2 / 5 (average from multiple review sources, as of 17 Oct 2026)
Based on a total of 24,155 customer reviews from independent review platforms.

Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

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pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Will usually delivered within 3 - 4 working days of receiving cleared payment.
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£79.99
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Casio - GA-2100-1AER GA-2100-1AER, G-Shock RESIN BLACK digital quartz Watch

Overall Rating: 1.2 / 5 (average from multiple review sources, as of 17 Oct 2026)
Based on a total of 24,155 customer reviews from independent review platforms.

Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

All brand names and logos are the property of their respective owners.

Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Will usually delivered within 3 - 10 working days of receiving cleared payment.
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£83.00
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Casio G-shock Mens Black Watch GA-2100-1AER - One Size

Overall Rating: 4.1 / 5 (average from multiple review sources, as of 18 Oct 2026)
Based on a total of 29,641 customer reviews from independent review platforms.

Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

All brand names and logos are the property of their respective owners.

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pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
3-5 days
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£85.99
Delivery from £2.99

Casio GA-2100-1AER G-Shock Chronograph Divers Watch Quartz Unisex Black 45mm ...

Overall Rating: 1.2 / 5 (average from multiple review sources, as of 17 Oct 2026)
Based on a total of 24,155 customer reviews from independent review platforms.

Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

All brand names and logos are the property of their respective owners.

Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
Will usually delivered within 4 - 9 working days of receiving cleared payment.
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£100.09
Delivery from £30.00

G-Shock GA-B001-1AER Men's Black Bezel Black Resin Strap Watch

Overall Rating: 3.6 / 5 (average from multiple review sources, as of 17 Oct 2026)
Based on a total of 9,833 customer reviews from independent review platforms.

Sources & Transparency:
The values are derived from publicly available retailer ratings from platforms such as Feefo, http://Reviews.io , Trustpilot, and others, and are aggregated monthly.

All brand names and logos are the property of their respective owners.

Notice:
pricehunter.co.uk cannot guarantee that published shop ratings originate from consumers who have actually made a purchase from the reviewed retailer.
1-3 working days
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£119.00
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G-Shock GA-2100-1AER Octagon Series Watch

Cheapest offer

Breathe new life into your collection with the GA-2100: the newest piece of the Carbon Core Guard family. This effortless black and grey design blends the latest Carbon Core Guard tech with a sleeker form, inspired in part by the renowned DW-5000C from 1983. Not forgetting the classic look, the octagonal bezel encases an analogue-digital display. With an interchangeable resin strap, the GA-2100 can be tailored to fit any style or occasion. And, like other G-SHOCKs, this watch offers 200m water resistance and shock-proofing. We are a Casio UK authorised dealer New boxed stock with full retail boxes & paperwork WATER RESISTANT 200 Metres Water Resistant ACCURACY +/- 15 seconds per month ALARM FUNCTION 5 Daily Alarms: Each will sound every day at the time you set, Hourly time signal: The watch beeps every hour on the hour AUTO CALENDAR Once set, the automatic calendar always displays the correct date BAND MATERIAL Resin BATTERY LIFE Approximately 3 years CASE MATERIAL Carbon-Reinforced Re
£74.00
1-3 working days
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Product information

At a glance

  • Durable and stylish timepiece ideal for outdoor enthusiasts
  • High-functionality watch with a long-lasting battery
  • Lightweight, water-resistant design for comfort and convenience

Note: This text was created with the help of AI.

Perfect Match for the Adventure Seekers

Are you an enthusiast of outdoor activities or extreme sports? Well, our watch selection has got you covered. The Casio G-Shock GA-2100-1AER is ideal for those who need a durable and reliable timepiece that can withstand harsh conditions and still maintain its elegance and style.

Unmatched Functionality and Robustness

The Casio G-Shock GA-2100-1AER is a powerhouse of functions that will impress even the most tech-savvy buyer. It includes features such as dual-time display, stopwatch, countdown timer, daily alarm, and an automatic calendar ensuring you're always up-to-date. It's equipped with a long-lasting battery that can run for up to three years, making it a dependable companion for your adventures.

  • Dual-time display
  • Stopwatch and countdown timer
  • Daily alarm
  • Automatic calendar
  • Long-lasting battery (up to 3 years)

Dressed to Impress

The casio G-Shock GA-2100-1AER is not only about its functions, but also how it is packaged. It features a minimalistic yet bold design, with a sleek black colour that can easily match any outfit. The case and band are made from shock-resistant resin, ensuring durability. It's water-resistant up to 200 meters, making it a great choice for aquatic adventures. And with a weight of approximately 51 grams, it's light on your wrist.

The Advantage of Comfort

One of the standout features of the Casio G-Shock GA-2100-1AER is its focus on comfort. Despite its robustness, this timepiece is surprisingly light and comfortable to wear, even for extended periods. The adjustable band ensures a perfect fit for any wrist size. In addition, the easy-to-read digital display ensures that you can quickly check the time, date, or other functions, even in challenging lighting conditions.

Note: This text was created with the help of AI.

Pros and cons

Pros

  • Durable and reliable design
  • Long-lasting battery life
  • Multiple functionalities
  • Comfortable and adjustable fit

Cons

  • May be bulky for some
  • Not suitable for formal wear

Note: This text was created with the help of AI.

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21 Variants from £71.83

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User reviews

Our reviews come from Trustami, a service that automatically collects, links, and verifies reviews from various sources such as Google, eBay, Amazon, and Trusted Shops. This gives users a transparent overview of a manufacturer's customer satisfaction.

4.6 out of 5 stars

57 Ratings
5 stars
39
4 stars
12
3 stars
5
2 stars
1
1 star
0
Otto.de Kunde

Setting the time on the display is tedious because it is far too small. Once you finally manage it, the time is readable with the hands. The display is simply too small.

via trustami

Ebay.de Kunde

Very light and robust, my choice for swimming in the sea. Bluetooth and the Casio app are a nice addition. Thanks to the solar function, you won’t be surprised by a dying battery while on holiday.

via trustami

Otto.de Kunde

The watch is very nice and the strap is light, but I will never manage the settings and therefore I am returning it

via trustami

Kaufland.de Kunde

You know the drill from Japanese products, and this is no exception: absolute top quality, as you’d expect from brands like Casio, G‑Shock and other watch makers from the Land of the Rising Sun. I’m thrilled with my first G‑Shock.

via trustami

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