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Mens Casio G-Shock Octagon Series Carbon Watch GA-2100-1AER

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with code £74.92
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Order within 10 hours and 35 minutes to get it Wednesday 28th September

Product Description

Rugged and iconic, this is the perfect statement of G-Shock intent.

Inspired by the DW-5000C, the octagonal shape harks back to 1983, when G-Shock as a concept was blazing a trail for durable watches unlike anything else ever seen.
Bringing this right up to date, it features the new Carbon Core Guard structure, letting the watch have a slimmer and more wearable case without being oversize and bulky as in previous GA series watches.
The ana-digi movement is an almost overlooked part of the watch, but is a fantastic full-featured movement, with features usable in real world situations and everyday life.

The all matte black colour combination looks subtle, but shows off the construction of the case, but remains legible with luminous hands and markers.

  • 200 metre water resistance
  • Shock and dust resistant case
  • 24 hour digital chronograph and 24 hour countdown timer functions
  • Automatic Calendar
  • Carbon reinforced resin case
  • Dual illumination for dial and digital display
  • 5 daily alarms, as well as optional hourly signal beep
  • Dual time functionality
  • Watch Guru Mini Review

    Joshua Clare-Flagg

    Joshua Clare-Flagg

    Watch It All About

    Aptly named the “CasiOak” amongst the watch enthusiast community, due to the octagonal case being similar to the ultra-luxurious Audemars Piguet Royal Oak, the Casio GA-2100 has quickly become a cult hero since its release in 2019. Extreme shock resistant properties, with a carbon core, makes this a serious tank of a watch. An excellent feature set at a very affordable price point makes it a superb pick for someone after a durable and robust watch.

    Ana-digi display


    Carbon Core Guard structure

    200m water resistance

    Product Specifications

    Brand CasioAlarm YesAnalogue/Digital CombinationBacklight YesBezel Type FixedCase depth approx. 11.80mmPrimary Material Plastic/ResinCase Shape OtherCase width approx. 48.50mmChronograph YesClasp type Strap buckleDial Colour BlackMultiple Time Zones Display World TimeGender GentsGlass MineralLuminescent hands YesModel Collection Ocatgo SeriesMovement Source JapanMovement QuartzStrap colour BlackStrap Type Plastic/Resin StrapWater Resistance 200 metresWeight (g) 51.00BARCODE 4549526241703Guarantee 2 years

    About Casio

    Casio logo


    Legendary Japanese electronics company Casio is loved for its range of innovative and reliable watches. Casio offers both analogue and digital watches for men and women in a variety of styles and colours, perfect for everyday wear, sportswear and more adventurous activities. The G-Shock and Baby-G watches are perfect for keen sportspeople, thanks to their durability, excellent time keeping and advanced sports features. Meanwhile, the classic unisex Casio watch adds a little retro flair to any outfit. Though simple, the design is iconic, and an absolute must for any watch lover's collection. Available in gold, rose gold, black and silver, there's a colour to match any style. The brand also produces a range of high-quality, professional watches ideal for those who lead an adventurous lifestyle. The premium pieces are mud and water resistant, and include accurate compasses to help keep you firmly on the trail. Explore the full range of Casio's analogue & digital watches, go retro with the Casio calculator watch or browse their feature rich selection of sports watches.

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    Ratings and Reviews

    Own this item? write a review add review

    Average rating: 5 / 5

    Nick beck
    Tue 31st May 2022

    Absolutely awesome watch! May i first start with the price, £75 from watchshop! Yes £75! The cheapest i have found anywhere, and for this awesome watch, classical design, great brand and unbelievable functionality.

    4 out of 7 people found this review helpful
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    Richard Bosworth
    Sat 31st July 2021

    Good watch, prompt delivery, well pleased.

    6 out of 22 people found this review helpful
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    Dominika Kosinska
    Thu 1st July 2021

    Watch works great, got what we played for. Instructions are slightly difficult to get head around but nothing a YT video cant fix. Worth the money neither too expensive or too cheap

    13 out of 32 people found this review helpful
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    Wed 28th April 2021

    Perfect watch, not too big or too small, just right. A very smart and stylish design, but also sticking to the G-Shock mantra.

    24 out of 47 people found this review helpful
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    Trusted Customer
    Tue 8th December 2020

    So far, so good, for Christmas gift so not used yet.

    30 out of 79 people found this review helpful
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    Trusted Customer
    Mon 7th December 2020

    This watch has an easy to read the face and it is not too big on the wrist.

    28 out of 77 people found this review helpful
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    Delivery and Returns

    UK Next Day Delivery (Royal Mail Tracked 24)

    Free when you spend over £60
    £2.95 when you spend under £60

    Place your order before 4pm Monday - Friday for delivery on the next working day. Orders over £500 will require a signature. Delivery to remote locations may take 2 working days.

    UK Standard Delivery (Royal Mail Tracked 48)

    Free on all orders.

    Place your order before 4pm Monday - Friday for delivery within the next two working days

    Order within 10 hours and 35 minutes to get it Wednesday 28th September


    To return your item(s) as unwanted, you have 14 days to inform us. From this date, you will have 14 days to return your item(s) to be eligible for a refund. Once your return has been processed, you will be refunded with the original payment method you used to place your order.

    In order to return any item(s) as unwanted and receive a full refund, the following conditions apply:

    • The item(s) must be unworn and in the same condition in which they were received
    • Items must be returned in their original packaging, with any instructions, guarantee and extras that were included within it
    • Earrings, belly bars and other items of pierced jewellery cannot be returned unless the tamper seal or sealed bag is still intact
    • If a visual defect is found with the item(s) upon arrival, you must notify us within 48 hours

    For our full returns policy, click here.

    This product can be shipped to:
    •   UK (United Kingdom)
    •   EU (European Union)

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