

⏱️ Own Time, Own Style — The Solar-Powered G-Shock That Never Quits
The G-Shock Casio GA-B2100CY-1A Caution Yellow Series is a rugged, solar-powered analog-digital watch featuring 20 bar water resistance and Bluetooth smartphone connectivity. Its bold black and yellow design draws inspiration from emergency safety colors, making it a versatile accessory for both casual and professional settings. With shock resistance, mineral glass protection, and customizable mod kits, this timepiece blends durability, precision, and style for the modern millennial professional.
| ASIN | B0CLYVWTYH |
| ASIN | B0CLYVWTYH |
| Age Range Description | Adult |
| Band Color | Black |
| Band Material Type | Resin |
| Band Width | 2 Inches |
| Bands | 1 |
| Batteries | 1 LR44 batteries required. (included) |
| Best Sellers Rank | #1,209,418 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #5,357 in Men's Wrist Watches |
| Brand Name | G-Shock |
| Case Diameter | 48.5 Millimeters |
| Case Material Type | Resin |
| Case Thickness | 11.9 Millimeters |
| Character | fashion |
| Clasp Type | Buckle |
| Closure Type | Buckle |
| Crystal | Mineral Glass |
| Customer Reviews | 4.3 4.3 out of 5 stars (68) |
| Date First Available | October 27, 2023 |
| Department | mens |
| Dial Color | Yellow |
| Display | Analog-Digital |
| Embellishment Feature | Crystal |
| Face Style | Mixed |
| Included Components | Watch |
| Item Type Name | Casual Watch |
| Item model number | GAB2100CY-1A |
| Manufacturer | Casio |
| Manufacturer | Casio |
| Model Name | GAB2100CY-1A |
| Model Number | GAB2100CY-1A |
| Package Dimensions | 4.37 x 3.78 x 2.76 inches; 5.93 ounces |
| Power Source | Solar Powered |
| Series Number | 2100 |
| Shape | Hexagonal |
| Sport Type | Walking |
| Strap Type | Two Piece Strap |
| Style Name | Casual |
| UPC | 889232363752 |
| Unit Count | 1 Count |
| Warranty Type | Limited |
| Watch Movement Type | Quartz |
| Water Resistance Depth | 200 Meters |
| Water Resistance Level | Waterproof |
M**E
These GA B2100 Watches Are Top Notch
I’ve bought five different versions of the GA B2100 and these are really nice timepieces. The resin bezel & bands are OK, but when you mod them with the stainless steel kits, they tend to really pop. My plan is to modify this model with an SKXMOD mod kit, black bracelet & bezel w/rose gold rivets. I have this tendency to name my modded G-Shocks, this one is going to be my ‘Bumble B2100’. Seriously, these Casio GA B2100 series tough solar, bluetooth watches are very good. Nicely designed. Solar powered so you don’t have the hassle of replacing batteries every couple years. Sets itself with the intuitive and very simple Bluetooth app you simply download to your smart phone. It updates the watch twice daily so the time is always accurate right down to the second. Has all the standard G-Shock features; stopwatch, timer, chime, a very cool reminder feature and phone finder via the bt app. If you misplace your phone, you can locate it quick & easy with this audible function. The watch itself is highly customizable. And with these metal mod kits, you can build a your own unique watch. G-Shock for life! 5*****Stars on all these Casio, G-Shock GA B2100 series timepieces from me. Buy it, mod it, try it and simply enjoy your Casioak. Mr. Lee’s unbiased review.
V**H
Great Casio solar watch
Excellent watch. Beautiful colors mobile app,solar energy.
P**E
Great watch, teeny tiny LCD
Well, in wearing it now. I like that you don't NEED an app to get full functionality from it. I like the styling, I like the light, I love solar watches... The only thing I don't love about the watch is that the LCD screen is absolutely microscopic.
D**T
Time tested!
As long as I can remember, Casio watches have always been top notch quality and very dependable. With great styles and many available options that you may be looking for in a watch, you can't beat a Casio G Shock, although if you wanted to you could because it would continue to work as if nothing happened. A watch that will last a lifetime! ⭐⭐⭐⭐⭐
K**.
Comfy and color scheme was just what I expected
I think the yellow is spot on. Feels comfy, light is bright enough to read just wish there was slightly more back lighting. Feels as durable as my other g shocks, the buckle doesn't make any noise or squeak like my Garmin. I didnt use the bluetooth features because it was just like setting up like my other G shocks.
R**R
Look good
I like it
J**B
Ask a lot of questions before you buy!
Very disappointed with this watch. I’ve charged it all day long with a led charging lamp purchase here on amazon. It doesn’t hold a charge for long compared to my other solar Casio. I was expecting a new watch? I just got back from London and purchased a green bluetooth Casio. And it had all of its protection stickers on this one not. Ask a lot of questions before buying. I wish I did. I know my watches I’ve purchase plenty here! It’s all ways on medium charge.
R**N
Casioak Caution colors is the best yet
Black and yellow caution ⚠️ really looks awesome. Feels durable. Great everyday watch
C**E
Me llego bien el producto y funciona a la perfeccion. Con medio día que lo deje en la ventana recibiendo sol, se ha cargado desde la mitad a completo. Por mi trabajo no siempre ando expuesto al sol y aún así la mantiene casi siempre alta la carga.
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