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Casio

G-Shock Men's Grey Sport Watch

Based on 1,856 reviews
Condition: New
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$101.24
Holiday Deal · 35% off was $155.00

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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Nov 11
Order within 8 hours and 24 minutes

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At a glance

Condition
New
Style
GD400-9CS
Dimensions
4 x 5 x 6 in; 0.15 oz
Weight
4.54 g
Display
Digital
Watch Movement Type
Quartz
Power Source
Battery Powered
In the box
Resin caseresin watch band

Description

The most durable digital and analog-digital watches in the industry, trusted by military personnel, law enforcement, surfers and outdoor enthusiasts around the world. Shock-resistant construction protects against all sorts of impact and vibration. You can wear your G-SHOCK in all sorts of situations, from working with water in daily life and taking a shower to participating in water activities such as swimming, surfing or jet skiing. With the back-light, you can see the watch face in any situations without light.

Specs 45

Product Dimensions 4 x 5 x 6 inches; 0.15 ounces
Item model number 476412
Department unisex-adult
Batteries 1 Lithium Ion batteries required. (included)
Manufacturer Casio
Display Digital
Watch Movement Type Quartz
Additional Features Alarm, Calendar, Light Up, Second Hand, Shock Resistant

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Nov 11

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

Great watch, price and quality!
Style: Standard
Love this watch. Little hard to program, but solid design and many great comments.
Reviewed in the United States on October 19, 2025 by Simon
Definitely Waterproof!
Style: Standard
Fantastic watch! The time is super easy to read day and night. The back light works very well compared to most watches. The buttons are large and easy to use. The watch is super waterproof with no issues to report as of yet. It’s very comfortable. Great Product!
Reviewed in the United States on July 27, 2025 by Shanna
Excellent watch, tough, bulky, and gritty
Style: GD400-1CR
This is the fourth G-shock that I've owned (dw5600E-1, GA110, and gw6900-1). I love this watch. I love the blackout feature. It's flashy but discrete. The bull bar provides extra protection, as well as a nice aesthetic touch in that it also gives me a sense of security telling me that I can be rough and tumble with it. It's bulky. It's bulkier than the above mentioned models (the GA110 is pretty bulky) and I think its the bulkiest of the watches I've seen in the gshock line. The bars add another 2-3mm in thickness as well. IF you're adverse to thickness, this is not the watch for you. The band width is pretty wide as well. Now, I look better with bigger watches, so this fits me well. But I want to make sure people know that if they are questioning about I've noticed a lot of criticism regarding these polarized g-shock watches and the difficulty it is to see the time in the dark. However, I noticed that it is difficult to see the watch when viewing it directly at 90 degrees (that is, viewing directly on top). However when viewed between at a 30-40 degree angle, it shows perfectly, every time, even in low light. The Auto EL feature works for 6 hours when enabled, which is perfect in the evening. It lights up at 40 degree angle and has a blueish tint in the background, which is a great contrast to the black/red and is easily viewable. It also has all the other basic casio features that go without saying. I really like this watch. I don't want to marry it, and I'm not emotionally tied to it, but I like the way it feels on my arm and how it looks and compliments my color wheel (yeah I said that). If bulky is your thing, and your hesitant, don't be. ... show more
Reviewed in the United States on December 16, 2015 by SCT
Perfect choice for EDC and rugged environment
Style: Standard
Excellent and rugged EDC watch!
Reviewed in the United States on August 4, 2025 by C. Nayeri
A Great G-Shock Watch for a Great Price
Style: Standard
Review Image by Kyle Krauch Kyle Krauch
Review Image by Kyle Krauch Kyle Krauch
I’m on my 4th G-Shock watch in 7 years. I lost my first one, and the other 2 work just fine to this day. This is the new one. I’m no watch collector, but I wear one just about every single day, and really only own G-Shocks. The only thing that makes me want to buy a new one is the single flaw I see in G-Shocks; the little plastic band that holds the strap down in place. After a few years they get brittle and break. An easy fix,(you can get replacement parts through G-Shock & replace the band yourself or even take it to a watch shop) but instead I decide its time to treat myself to a new watch. This has to be the nicest looking one I’ve bought yet, and I have no question that it will be just as durable as the others, if not more so. The metal wiring around it only makes it stronger. I work in the construction industry and am also a very active outdoorsman(fishing, mountain biking, camping etc etc etc) and almost never take off my watch for any of the above. No, it does not come in the classic G-Shock tin, but its a damn box thats useless once I put the watch on so I’m well over that. This watch was released in 2014 so its price has gone down all the way to $77 for the grey/green colored one. The one warning ill issue to anyone who decides to buy this watch is that G-Shocks usually come with the battery already on, so the battery may not last as long as expected due to the fact that its an older model. Another easy fix should the battery die. Overall, a great purchase and I look forward to getting some good years out of this watch until the time comes once again to order a new one. Enjoy! ... show more
Reviewed in the United States on July 17, 2019 by Kyle Krauch Kyle Krauch
Great Watch
Style: Standard
The media could not be loaded. Durable, not overly complicated, good backlight ( I use it even as a very temporary flashlight early in the morning on my workdays so I can see the stairs.) and the side buttons do not take an abundance of force to actuate. I will say the photo made the watch look FDE but it's more of an OD Green, but it blends well next to multicam. Would recommend, worth the money. ... show more
Reviewed in the United States on August 26, 2024 by clayton
Recomiendo esta marca
Style: Standard
Excelente producto
Reviewed in the United States on July 25, 2025 by José Alexander Romero
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