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G-Shock

G-Shock GA-2100-4A

  • Based on 850 reviews
Condition: New
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Availability: In Stock.
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Arrives Thursday, Aug 14
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Description

This G-ShockI® watch features a round stainless steel case with a resin and carbon fiber overlay, adjustable resin band, traditional buckle closure, and red dial face. Shock resistant. Analog and digital time keeping.Dial face features stick index hour markers, digital display, sub-dial, minute track at perimeter, and brand name. Carbon Core Guard structure. A new carbon core guard structure protects the module by enclosing it in a carbon case. The case is made of fine resin embedded with carbon fibers for outstanding strength and crack resistance.Mineral crystal window. Water resistant up to 20 ATM/200 meters. Presentation box included. Imported.

Product Dimensions ‏ : ‎ 5 x 5 x 5 inches; 7.05 ounces


Item model number ‏ : ‎ GA21004A


Department ‏ : ‎ mens


Batteries ‏ : ‎ 1 Lithium Metal batteries required. (included)


Date First Available ‏ : ‎ September 16, 2019


Manufacturer ‏ : ‎ G-Shock


Best Sellers Rank: #221,502 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry) #879 in Men's Wrist Watches #2,336 in Men's Shops


#879 in Men's Wrist Watches:


#2,336 in Men's Shops:


Brand, Seller, or Collection Name: G-Shock


Metal: Red


Material: Plastic


Item Length: 5 inches


Height: 0.7 inches


Width: 14 inches


Length: 11 inches


Clasp: Buckle


Model number: GA21004A


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Aug 14

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Similar Products

Top Amazon Reviews

    • Cool red watch, that adds a little bling if you want to stand out.
Color: Red
The seller sent me the wrong model watch, the Iron Man G-shock, which I found atrocious looking. But Amazon sorted that quickly and I received the correct item 2 days later. This is a nice watch, I love the looks of the GA-2100 series. This all red edition really pops. The seller's photos are accurate color wise. The digital screen is easier to read than the blackout versions that come with most of this series of watches, but the red background makes the digital info pop when you turn your wrist the right direction in the light, the numbers look blue to me. I had one of the first G-Shocks when they came out in the early 80's. Loved that watch. The strap finally broke, I still have it somewhere. I should probably find it, and get a new battery and strap, I'm betting it would still work. Hoping this one gives me similar service, even if I have to replace the battery more often. I'm planning on buying another version of this watch, so I can interchange components for different looks. I think the red dial would look fantastic in the clear transparent strap/case. or having a black or white dial in the red strap/case would be cool too. As this watch is a lot of red. Only one complaint, and I don't know what Casio was thinking, other than trying to keep this all red, the bands clasp is plastic, instead of metal, like on the other variants of this watch. I see that being a weak point that will eventually break, on a G-shock. It should have been metal, black, silver or anodized red. ... show more
Reviewed in the United States on August 16, 2024 by DKMcGinnis
    • Casio Red G Shock watch
Color: Red
Get a lot of compliments on this. Love the red, tells time accurately, feels good on wrist
Reviewed in the United States on April 26, 2025 by Chris Boyce
    • A+++
Color: Red
Super nice watch and the color is absolutely fire
Reviewed in the United States on March 20, 2025 by Anthony H.
    • CasioOak Goodness!
Color: Red
I bought this watch to match a lot of the things I wear for my college alma mater. Frankly, this watch is hard to read due to a lack of contrast... everywhere... on its face. I knew this before I bought it based on reviews and pictures so it meets my expectations. I wear it and like it anyway.
Reviewed in the United States on January 8, 2025 by David Rodabaugh
    • Does not come in the metal tin as shown. Watch comes in a cheap little box.
Color: Red
Does not come in the metal tin as shown. Watch comes in a cheap little box. Aside from that the watch itself is what you would expect from a Casio G-Shock.
Reviewed in the United States on July 17, 2025 by SickLittleBoy
    • Bonito g shock lo recomiendo
Color: Red
Review Image by Carlos matiz Carlos matiz
Review Image by Carlos matiz Carlos matiz
Bonito g shock no dudes en comprarlo ,ideal para uso diario. Si quieres resaltar un poco y salir un poco fuera de lo común, te lo recomiendo ..
Reviewed in the United States on April 20, 2025 by Carlos matiz Carlos matiz
    • Amazing! Too small? Difficult to read?
Color: Red
Review Image by Lin Lin
It isn't a giant g-shock. That's exactly why I got this: I loved the idea of the g-shock, but I hated the execution. I wanted something tough, but beautiful. This one is light, and I have no problem reading the hour (analog). the digital isn't as clear as the analog part, but I got this specific watch because I love analogs. Though you can indeed see the digital part, it's easier to read the digital part in other models that are only digital. Now, even if this is a "small" g-shock, it's actually a big watch comparing to others I own. I like it very much though, so for small wrist people and for those who just don't want to attach a wall watch to their wrist, it's a great deal. ... show more
Reviewed in the United States on March 5, 2021 by Lin Lin
    • Great watch to add a little color to your wardrobe
Color: Red
This brand is a great watch brand for on the go watches for guys. I bought it for my son and he lives it. It looks great, adding some style to his fits.
Reviewed in the United States on August 7, 2024 by Mari Hernández

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