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Casio G-Shock GA-400-1B | Large Rotary Switch | Shock & Magnetic Resistant | 200M Water Resistant

  • Based on 1,221 reviews
Condition: New
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$108.95 Why this price?
Holiday Deal · 7% off was $117.14

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This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026

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Availability: In Stock.
Fulfilled by Amazon

Arrives Wednesday, Dec 17
Order within 11 hours and 46 minutes
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Description

From super-tough G-SHOCK comes a collection of GA-400 with a large rotary switch for intuitive operation. This G-SHOCK is accented in silver to create a HIP-HOP artist or B-BOY fashion motif

Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 3.86 x 4.41 x 3.94 inches; 2.5 ounces


Item model number ‏ : ‎ GA-400-1B


Department ‏ : ‎ mens


Batteries ‏ : ‎ 1 Lithium Metal batteries required. (included)


Date First Available ‏ : ‎ October 29, 2014


Brand, Seller, or Collection Name: Casio


Model number: GA-400-1B


Part Number: GA-400-1BDR (G566)


Item Shape: Round


Dial window material type: Mineral Glass


Display Type: Analog-Digital


Clasp: Toggle Clasp


Case material: Resin


Case diameter: 5.5 centimeters


Case Thickness: 18 millimeters


Band Material: Resin


Band size: Mens Standard


Band width: 22 millimeters


Band Color: Multicolor


Dial color: Black


Bezel material: Resin


Bezel function: Stationary


Calendar: Day-Date-Month


Special features: World Time, Alarm


Item weight: 2.5 ounces


Movement: Quartz


Water resistant depth: 200 Meters


Product Warranty: For warranty information about this product, please click here


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Dec 17

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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Top Amazon Reviews


  • Works and looks great!!!!
This is the best watch I've ever had it is so nice and beautiful in the price was right too I got a really good deal on it.
Reviewed in the United States on March 8, 2025 by John Angileri

  • Excelente calidad y muy bonito el reloj
Gracias muy bonito y totalmente en buen estado mi reloj , gracias por su rápido y eficaz envío
Reviewed in the United States on November 21, 2025 by maikel castillo maikel castillo

  • I’m fine with it
Good Watch
Reviewed in the United States on November 17, 2025 by Eric Whippy

  • It's a watch!
Feels great, the look is perfect for me and it's easy to use with the dial knob.
Reviewed in the United States on May 6, 2025 by david schwantor

  • Excelente 👌 servicio
Es un reloj poderoso y duradero
Reviewed in the United States on September 22, 2025 by IBRAHIN JIMENEZ

  • Very nice watch.
This is my fifth G shock. The functionality of this watch it s no different than most other models. However the crown on the right side allows you to move to the count down timer much quicker than having to scroll through the mode button. I like the display. It's stands out more that on other G shock models. The backlight is still in need of improving. The Band I changed myself. A Red Model GA700 band fits this watch like a glove, in case anyone was wondering. Great watch. Worth every penny. ... show more
Reviewed in the United States on May 14, 2019 by Josh Kaller Josh Kaller

  • love it
read the reviews and i'm not sure what all people were expecting in regards to night use. this isn't your typical digital watch, it's very much a hybrid, that being said i've tested the LED light in various dark conditions and it's perfectly acceptable for telling the time at night. is it the clearest and brightest to read? no way, but that doesn't prevent me from actually telling the time if i need to read it in the dark. all that aside, this watch is amazing! it looks even better in person than in the photos. has a ton of features and is very aesthetically pleasing. so just know what you're buying, if you need something with excellent backlighting for night use, stay away from this watch. otherwise, it more than exceeds my expectations in every other area. ... show more
Reviewed in the United States on March 24, 2017 by Mike D

  • Not genuine
Sent several messages and pictures regarding this watch. I dont believe it is genuine. Be careful. Extremely poor packing and missing the Casio stamp on the band
Reviewed in the United States on December 1, 2025 by SaSa

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