




PRODUCT DETAILS
This G-SHOCK timepiece features a Carbon Core Guard structure that combines high strength with a lightweight design. The fine resin case contains carbon fiber to prevent impact damage and deformation while protecting the internal module.
A dual-layer back cover guards against impacts to the rear, while the shock-proof button configuration allows for an exterior design without button guards. The watch face is styled with a three-dimensional dial and large front buttons for a bold aesthetic.
Engineered for toughness and outdoor utility, this analog-digital model provides 200-meter water resistance and a double LED light system for clear visibility in dark conditions.
Key Features
| Case size (L× W× H) | 48.5 × 45.4 × 11.8 mm |
| Weight | 51 g |
| Case and bezel material | Carbon / Resin |
| Band | Resin Band |
| Construction | Shock Resistant, Carbon Core Guard structure |
| Water resistance | 200-meter water resistance |
| Power supply and battery life | Approx. battery life: 3 years on SR726W X 2 |
| Glass | Mineral Glass |
| Compatible band size | 145 to 215 mm |
| World time | World time 31 time zones (48 cities + coordinated universal time), daylight saving on/off |
| Stopwatch | 1/100-second stopwatch Measuring capacity: 00'00''00~59'59''99 (for the first 60 minutes) 1:00'00~23:59'59 (after 60 minutes) Measuring unit: 1/100 second (for the first 60 minutes) 1 second (after 60 minutes) Measuring modes: Elapsed time, split time, 1st-2nd place times |
| Timer | Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments) |
| Alarm/hourly time signal | 5 daily alarms, Hourly time signal |
| Light | Double LED light LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) |
| Light color | LED:White |
| Calendar | Full auto-calendar (to year 2099) |
| Mute feature | Button operation tone on/off |
| Accuracy | Accuracy: ±15 seconds per month |
| Other features | 12/24-hour format, Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.), Regular timekeeping: Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day) Digital: Hour, minute, second, pm, month, date |
Highlights
- Shock resistant
- 20 bar water resistant
- Easy to see in darkness
- Casual design
- Light and strong
- Sporty design
Frequently asked questions
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PAYMENT METHODS

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SHIPPING & RETURNS
DELIVERY
- We aim to dispatch all in-stock items from our warehouse within 2-5 business days. An email will be sent to you which will include all your tracking information once your order has been handed over to our courier partner.
- If an item is out of stock, we will email you as soon as possible to arrange a full refund or exchange.
- FREE shipping for all orders to any South African address.
- International delivery to Zimbabwe, Namibia and Botswana is available for some brands. Please contact us for a shipping quote.
- Easy 7 days returns and exchanges
RETURNS
If you do not like the product you can return it within 7 days, assuming the item is not worn, scratched or damaged in any way, and includes all the original packaging.
Please contact us for any returns or exchanges
WATER RESISTANCE
Please check the marking on the back of your watch case and refer to the following table to confirm the degree of water resistance of your watch and the preferable conditions of use. A watch’s water resistance is not permanently guaranteed. It is affected by the ageing of gaskets or deformation of watch parts due to accidental shock. To preserve a watch’s water resistance as long as possible, please follow the precautions below:
- Wipe off moisture, sweat or dirt with a soft dry cloth after removing it from the wrist in order to increase the durability of the case back, gaskets and band.
- After using a water resistant watch in ocean water, wash it in fresh water and dry it with a soft cloth.
- Do not wash a water resistant watch while the crown is pulled out.
- Do not operate the crown or press a button when the watch is wet.
- A periodic overhaul service is recommended to check the water resistance of the watch regularly to ensure it’s functionality.
〇:OK, ✕:Not OK
Type of water resistance | For saturation diving | For scuba diving | Enhanced water resistance for | Water resistance for | Non-water resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Water resistance | Professional Diver's Watch | Diver's watch | 20 | 10 | 5 | 3 | ||||||||
Usage example | Accidental splashes and Contact with rain | 〇 | 〇 | 〇 | 〇 | 〇 | 〇 | × | ||||||
Swimming, Yachting, | 〇 | 〇 | 〇 | 〇 | 〇 | × | × | |||||||
Skin diving | 〇 | 〇 | 〇 | 〇 | × | × | × | |||||||
Scuba diving | 〇 | 〇 | × | × | × | × | × | |||||||
Saturation Diving | 〇 | × | × | × | × | × | × | |||||||
REVIEWS
Casio G-Shock Carbon Core Guard Red Dial Digital Watch GA-2100-4ADR
WHY BUY FROM US?
- AUTHORISED ONLINE DEALERThe Watch Boutique is an authorised online stockist for all brands. This includes a full international warranty.
- FREE AND FAST DELIVERYShipping is free for all orders in South Africa. We dispatch all orders within 2-5 business days.
- SECURE PAYMENT OPTIONSIncluding Buy Now, Pay Later plans with PayFlex and Pay Just Now.
- AFTER-SALES SERVICEWe have a full on-site watch repair workshop to take care of all after-sales needs.
