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Casio G-Shock GD100-1B | Men's Tough Digital Watch | 200M Water Resistant | High-Brightness LED | Dual Time & 7-Year Battery

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Arrives Jan 10 – Jan 14
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Description

G-SHOCK GD100-1B: The Ultimate High-Visibility Tactical Watch The Casio G-SHOCK GD100-1B is built for toughness and visibility, featuring a Super Illuminator high-brightness LED for superior nighttime readability. Designed for military, law enforcement, athletes, and outdoor adventurers, this all- black, shock-resistant digital watch combines functionality and rugged durability. The large display, dual-time feature, and world time function allow you to stay on schedule across multiple time zones, making it perfect for travelers and professionals. The 1/100-second stopwatch and countdown timer help with training, workouts, and timing tasks, while five daily alarms ensure you never miss an important event. 200M water resistance, shock resistance, and a 7-year battery life make this watch low-maintenance and adventure-ready. Whether you're hitting the gym, going on a mission, or exploring the outdoors, the G-SHOCK GD100-1B is your go-to watch for extreme performance. CasioWith the launch of its first watch in November 1974, Casio entered the wristwatch market at a time when the watch industry had just discovered digital technology. As a company with cutting-edge electronic technology developed for pocket calculators, Casio entered this field confident that it could develop timepieces that would lead the market.Today, Casio is focusing its efforts on solar-powered radio-controlled watches: the built-in solar battery eliminates the nuisance of replacing batteries, atomic timekeeping means the users never have to reset the time. Recently, Casio launched a series of Bluetooth watches that sync to the users cell phone to automatically update the time. Casio is always moving time forward.

Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 1 x 1 x 1 inches; 2.5 ounces


Item model number ‏ : ‎ GD100-1B


Department ‏ : ‎ WATCHES


Batteries ‏ : ‎ 1 Lithium Metal batteries required. (included)


Date First Available ‏ : ‎ October 4, 2010


Manufacturer ‏ : ‎ Casio


Best Sellers Rank: #45,538 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry) #99 in Men's Wrist Watches


#99 in Men's Wrist Watches:


Brand, Seller, or Collection Name: Casio


Model number: GD100-1B


Part Number: GD100-1B


Model Year: 2011


Item Shape: Round


Dial window material type: Mineral Glass


Display Type: Digital


Clasp: Buckle


Case material: Resin


Case diameter: 5.1 centimeters


Case Thickness: 17.4 millimeters


Band Material: Resin


Band size: Men's Standard


Band width: 21 millimeters


Band Color: Black


Dial color: Black


Bezel material: Resin


Bezel function: Stationary


Calendar: Day-Date-Month


Special features: Water Resistant, Shock Resistant


Item weight: 2.5 ounces


Movement: Japanese Quartz


Water resistant depth: 200 Meters


Warranty: Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jan 10 – Jan 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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Top Amazon Reviews


  • Great watch. 1 year review
I have had this watch over a year now and it is still functioning and looks like day one. I have been to multiple field training exercises with it and it has yet to show any signs of quiting. Within the first month that I owned it, I scratched the plastic front face pretty deep but thankfully that deep scratch disappeared within a week (didn't expect that, just thought I should share) it's almost like the plastic face to the watch is self repairing. The watch was a bit bulky the first week but you get used it quickly. The nice thing about that is it is likely to keep your sleeve up enough so that you can easily see the time. It has different functions that work well, the four button arrangement for functions can be a bit tricky at times but it becomes muscle memory soon enough. Over the past year I have only noticed it coming off my wrist twice which I'm sure can be expected with many watches just based on things pressing against the buckle certain ways/directions. If I lost this watch I would certainly buy again. The only thing I would look for differently would be to have an easier way to set alarms. At night in the field you can't use the watch light while attempting to set alarm because the light goes off every three seconds. Easily the best $60 I have spent for myself in a long time ... show more
Reviewed in the United States on May 1, 2018 by Liam

  • Quality, Durable Watch
Fantastic watch. I haven't had it long enough to test the durability but the feel of it is amazing. It is heavy, the buttons take some force to push down, it's easy to read and pretty easy to navigate through all the features. I've had watches where the side buttons take a hit too hard and stop working, but that is pretty much impossible with these extra-high durability buttons. The negative display is distinctive and easy to read. The backlight is a real LED that shines directly onto the face, which distinguishes it from other watches that just have a light you can barely see illuminating the clock. Lots of features, most of which I won't need but useful nonetheless. I think it can have up to 5 alarms, it has a stopwatch, the calendar is always visible, 24-hour time, world time,a countdown timer (not common), and some more. The watch is large on the wrist but not problematically so for me, it fits comfortably and won't slip so it doesn't get in the way of exercises that bend the wrist. ... show more
Reviewed in the United States on August 15, 2014 by Landon

  • Great watch.
I would like to give fellow customers who decide to purchase this watch a WARNING about what they,(as customers),might get into. Well,as a customer, I purchased this watch,relatively LATE in 2015. Initially,everything worked well. However,to get my watch set CORRECTLY, I realized that to get my watch set correctly,that it would be in my “OWN BEST INTEREST” to have my watch set correctly at a major department store such as”Mac”. And they did it at “relatively” no charge. I got my watch set for free at no charge. I thought that I was doing great. However,what I realized is that the people who would set my watch didn’t really like to do it,AND,sometimes STUFF would happen,like,just a few days ago. I get off of the bus,walk across the street to my home,smoke a cigarette outside and then I go inside. I turn on the light inside of my bedroom,(to check the time on the clock that is on the wall), and I realize that My WRISTWATCH has completely STOPPED !! I try to fix it, but,that doesn’t work !! I ‘m not upset about that,however, I realize that I HAVE to buy a new watch. I’m just one of those people who ABSOLUTELY REFUSE to consult their cell phone in order to get the correct time. So,in order to get the correct time, I’ll have to guess for the next little bit, I’ll make due. I’ll have to make due,I’ll be okay. What I really liked about this watch is that when you’re doing your everyday stuff,(washing dishes,doing stuff,YOU CAN DO STUFF WITH IT,you can do stuff with it, and you can get it wet,(YOU CANNOT TAKE IT SCUBA DIVING),but,it works for everything else),. With all that this watch can do for you,at the very least, you won’t get aggravated by NOT KNOWING what time it is. I hope that you enjoy it. ... show more
Reviewed in the United States on February 13, 2016 by J.B.

  • THIS IS THE WATCH TO BUY
This watch is unbelievably rugged. I had taken this watch off and placed it in my jeans pocket when I went to do some spray painting. I had completely forgotten about the watch until after I had laundered the jeans in a hot, heavy soil washer load and then dried the jeans in a hot dryer for 30 minutes along with other laundry. This watch popped out with the dry laundry when I removed all from the dryer. I was pretty irritated at myself for my forgetfulness because the watch had ceased functioning (blank screen) at that point. Lo and behold...after cooling off for about 10 minutes the watch began fully functioning again and now, several hours later, the watch continues to work perfectly. The watchband is also in perfect shape having received no damage whatsoever. All that I can say is WOW!!! I was impressed by this modestly priced watch when I received it and am incredibly more so now. Anyone wanting an accurate and rugged wristwatch at a very reasonable price need to look no further than the Casio GD 100 G-Shock!! ... show more
Reviewed in the United States on April 16, 2018 by Mikeah

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