Casio Men’s GA100-1A1 Black

  • Casio G-Shock GA100-1A1 Initial thoughts
  • Casio – G-Shock GA-100-1A1 Review
  • Casio G-shock GA-100-1A1 *ALL BLACK – UNBOXING + LIGHT DEMO
  • G-Shock Men’s GA100-1A1 All Black Resin Watch Photo and Video Review
  • Casio G-Shock Black Chronograph X-Large Watch GA-100-1A1ER – Hands On Review
  • G Shock GA100- Unboxing & First impressions
  • Casio GSHOCK XL GA100-1A1 REVIEW | How To Set Time | LIGHT DISPLAY
  • Casio G-SHOCK GA-100 1A1DR Review
  • Casio GSHOCK Military GA100MB-1A REVIEW | How To Set Time | LIGHT DISPLAY
  • Adventure Watch: Casio G100 Series [Full Review]
Amazon Price: $71.65 $71.50 You save: $0.15 (%). (as of July 22, 2017 12:41 am – Details). Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on the Amazon site at the time of purchase will apply to the purchase of this product.

Living up to G-Shock's reputation for big case designs, comes a revolution in case size with the introduction of the X-Large G. This Ana-Digi, "three-eyed" monster measure in at a whopping 55 x 51.2 x 16.9mm size, with an attention to detail, that is second to none. Large anti-skid buttons provide easy operation, embossed indexes gives a 3-D look and a rivet bezel design adds strength to its overall appearance

Product Details

  • Product Dimensions: 6 x 6 x 7 inches ; 2.1 ounces
  • Shipping Weight: 5.6 ounces
  • ASIN: B003WPUU0U
  • Item model number: GA100-1A1

Customer Reviews

Love this watch.

144 people found this helpful.
 on February 21, 2012
By David Beck
I bought this watch when it was on sale for around a $100, but after having it for a while, would still pay the $70 more for it’s current price point. That said, look around, you might be able to find it cheaper elsewhere.

This watch is awesome! (Here’s how to fix the illumination issue)

154 people found this helpful.
 on April 19, 2012
By D. J. Garvich
This watch caught my eye as I walked by a counter in a department store. I needed something rugged that could take a serious beating often and never look any worse. In addition, I needed something stylish that would go with anything, that had a stopwatch AND had a countdown timer. This watch had all those things and had them at the right price. I’ve been REALLY excited to have it and haven’t taken it off since I bought it.

Love this watch.

93 people found this helpful.
 on February 2, 2013
By Jim S
Law enforcement – I use this as an every day-er. Good watch. Not too bright to light up (good thing) and its light-weight. I like G Shock products for work and this one holds the reputation well. People who complain about the not being able to see the date with the light at night…really? First off, by night time you should know the date…second, if you cup your hand around the top half of the watch, should see it fine. I agree its not for nigh time stopwatch use. Simply cant see it well enough…but you could try the alternative: “One- one thousand..Two -one thousand.. Three- one thousand” method.. It should get you close enough. 🙂


114 people found this helpful.
 on August 31, 2013
By Khal
hold adjust for 3 seconds press mode until you get to LT1 then use forward button to change to LT3… Bang lites up whole screen. Don’t you realize this is a military watch and having a bright light may get you shot??? LMAO

I Love my watch!!!

33 people found this helpful.
 on April 27, 2011
By Guara
Its a great watch.

Excellent watch for military Physical Training

17 people found this helpful.
 on September 8, 2014
By Rogelio Fiorenzano
There has been quite a few discussions on here regarding the quality of this watch and a line down the middle regarding the lighting of the watch’s display and a very small portion of folks indicating that the time was never correct on the watch.


17 people found this helpful.
 on January 11, 2015
By Bob
Love this watch!!! Looks great and light weight

It just works

12 people found this helpful.
 on April 30, 2015
By Jairo Gonzalez
This is a great watch. Actually found it pretty comfortable for its size. Looks great and feels very tough. I feel like it will last a lifetime. Feel bad for those spending over $350 for an apple watch that will probably only last a few years.


12 people found this helpful.
 on May 12, 2015
By Anthony
Looks great! Stealthy all black military looking watch. The negative display is easy to read and if you don’t want to turn the light on it does have auto light and the hands for the clock are pretty easy to read being white as well! I have to give this a 4 because I’m all about solar powered..I have a few solar g shocks but love this all black.