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G-Shock

G-Shock GA-2100-4A

  • Based on 869 reviews
Condition: New
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Availability: Only 2 left in stock, order soon!
Fulfilled by Watch Trendz
Arrives Friday, Jan 2
Order within 9 hours and 29 minutes
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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: #515,008 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry) #1,994 in Men's Wrist Watches #5,133 in Men's Shops


#1,994 in Men's Wrist Watches:


#5,133 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: Friday, Jan 2

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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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
    • 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
    • Beautiful color
Color: Red
Review Image by JJ JJ
Bought to mod and wasn’t disappointed. The red really stands out from other watches.
Reviewed in the United States on September 2, 2025 by JJ JJ
    • The red watch we all need.
Color: Red
Consistently getting compliments for the watch.
Reviewed in the United States on September 21, 2025 by David Holt
    • A Must Have G-Shock
Color: Red
I’ve been wanting to get this watch since I was a kid and I absolutely love it. It’s stylish and functional. Also I can confirm that it does not come in a metal tin, I got my in a cardboard box.
Reviewed in the United States on July 22, 2025 by Justin Vang
    • 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
    • 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
    • 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

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