Both the digital and analogue areas of the watch face glow when the EL backlight is turned on.
Shock-resistant
Shock-resistant construction protects against impact and vibration.
Neo-display
A luminous coating provides long-term illumination in the dark after only a short exposure to light.
World time function
Displays the current time in major cities and specific areas around the world.
Stopwatch function - 1/100 sec. - 24 hours
Accuracy of measurement up to 1/100 of a second, measuring range up to 24 hours.
Timer - 1/1 sec. - 24 hours
For fans of precision: the countdown timers help you to remember specific or recurring events by giving off an audible signal at a preset time. They The time can be set to the nearest second and up to 24 hours in advance.
5 daily alarms
The daily alarm reminds you about recurring events with an acoustic signal at the time you have set. This model has 5 independent alarms for flexible reminders of important appointments.
Button tones on/off
The button tones for using the mode button can be turned off. This means that the watch no longer beeps when switching from one function to another. Preset alarm or countdown timers remain active when the button tones are deactivated.
Hand Moving Function
With a push of a button, hands are moving and permit a free visibility of functions like stopwatch or date.
Automatic calendar with Date, Day and Month
Once set, the automatic calendar always displays the correct date.
12/24-hour timekeeping
Times can be displayed in either a 12-hour or 24-hour format.
Mineral glass
The tough mineral glass resists damages.
Carbon-reinforced resin casing
Thanks to its extremely high level of durability, resin is the ideal material for watches. Combining resin with carbon—a particularly robust material—creates a casing that is even more stress-resistant and offers even greater protection against external influences, resulting in an extremely high level of durability.
Resin band
Synthetic resin is the ideal material for wrist straps thanks to its extremely durable and flexible properties.
Folding clasp
The watch has a folding clasp.
3 Years - 1 Battery
The battery supplies the watch with sufficient energy for approx. three years.
Water resistance classification (20 bar)
Perfect for free diving without scuba gear: the watch is water resistant up to 20 bar according to ISO 22810.
What’s in the box?
3-year warranty, extendable for another 3 years
User manual
Warranty card
CASIO G-SHOCK branded box
Reviews about G-SHOCK Octagon Original Perfect Balance Carbon Core Guard GA-2110SU-3AER (15)
I chose this model mainly because of its brilliant Illuminator dual backlight feature. The watch brilliantly illuminates the entire face—both the analog and digital displays—making it effortless to tell the time in complete darkness.
karv
5/30/26
100%
I am very pleased with my purchase and would definitely recommend this watch to anyone looking for a reliable, modern, and stylish timepiece.
Kostek
4/30/26
100%
Great purchase, excellent quality.
SANA
4/21/26
100%
I received this G-SHOCK model as a gift. I've always liked its durability and design. I appreciate how easy it is to shop on the website. I recommend this watch.
KaliTom
3/31/26
100%
Fast delivery, excellent quality.
Prezentx.
3/24/26
100%
The quality is exactly as described.
Sandra_007
2/7/26
100%
Super-fast delivery, great quality.
Przemysławl.
1/12/26
100%
I bought a watch that’s sturdy and durable. The green silicone strap is comfortable to wear. I appreciate the store’s fast shipping. I recommend this model and this store.
Irydion
12/12/25
100%
I gave this watch to my sister for her birthday. It has a green silicone strap, which is very comfortable. The watch looks great and is perfect for everyday wear. I recommend it as a gift.
Joasiaf.
11/26/25
100%
High-quality products
Gerarda
11/10/25
100%
I'll definitely come back to shop here—I highly recommend it!
Luke
4/10/24
100%
I’ve loved G-Shock watches for years, and I really can’t stop raving about the great backlight they offer. Even though I have other brands in my collection, I often come back to Casio. This time I bought the watch as a gift, and I’m sure my cousin will love its versatile features and, of course, its cool design. Thank you for the on-time delivery.
Karol
4/3/24
100%
I bought a G-SHOCK watch and I love it. The mineral glass works perfectly—it’s very durable. Another plus was the free shipping, which meant I received the watch quickly and at no extra cost. I definitely recommend it!
Lucjan Q.
4/26/23
100%
A watch that can be described as having design aesthetics balanced, simply can appeal to everyone. Green non-flashy color, good proportions and size, good readability....only the display could be a bit bigger:) I would have seen better alarm or hour. :) And yes spox. I recommend to everyone. Worth the price....
I am satisfied and recommend the purchase.
Robert
7/13/20
100%
A watch that can be described as having a well-balanced design aesthetic can simply be liked by anyone. Green non-flashy color, good proportions and size, good readability ... only the display could be a bit larger :) I would see the alarm or the time better. :) And so spox. I recommend to everyone. Worth the price .... I am satisfied and recommend the purchase.
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The administrator of your personal data is the owner of the Watchard store, i.e. 57 Concepts Sp. z o.o. Sp. k. with the registered office at al. Witosa 31, lok. 115, 00-710 Warsaw, Poland. Providing personal data by the Customer is voluntary but necessary to complete the purchase. You have the right to view your personal data we have processed, as well as the right to request changes or removal of your personal data. Personal data will be processed for a period of 10 years.
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The administrator of your personal data is the owner of the Watchard store, i.e. 57 Concepts Sp. z o.o. Sp. k. with the registered office at al. Witosa 31, lok. 115, 00-710 Warsaw, Poland. Providing personal data by the Customer is voluntary but necessary to complete the purchase. You have the right to view your personal data we have processed, as well as the right to request changes or removal of your personal data. Personal data will be processed for a period of 10 years.
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