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Casio

Casio G-Shock G-100 Series | Analog-Digital Watch | Shock Resistant | 200M Water Resistant | Anti-Magnetic | Neobrite Hands | EL Backlight | Black

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Arrives Friday, Aug 28
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Description

The Casio G-Shock G-100 is a study in doing more with less. Launched in 2000 and still going strong, it distills the G-Shock philosophy — toughness, reliability, legibility — into a medium-sized round case that manages to feel both classic and purposeful on the wrist. The all-black resin case and band give it a clean, no-nonsense look, while the analog dial with Neobrite luminous hands delivers the kind of instant time readability that digital-only watches can't match at a glance. This is a G-Shock for people who appreciate straightforward utility without compromise. Under the surface, the G-100 is built on the three pillars that define the G-Shock line. Shock resistance protects the movement and crystal from drops and impacts. Anti-magnetic resistance shields the movement from interference by magnetic fields — a real- world concern for anyone working near motors, speakers, or industrial equipment. And at 200-meter water resistance (20 ATM), it far exceeds what most daily wear watches offer — fully capable of swimming, snorkeling, and extended submersion well beyond everyday splashes. The electro-luminescent backlight with afterglow activates at the push of a button for instant display readability in low-light conditions, and Neobrite coating on the hands ensures the analog display glows in the dark for hands-free time reading. The feature set is intentionally focused. Dual time lets you track a second time zone simultaneously — practical for travel or remote work. The 1/100-second stopwatch covers elapsed time with precision up to 23:59'59.99"", and a daily alarm with hourly time signal handles basic scheduling needs. An auto-calendar and selectable 12/24-hour format round out a clean, no-frills package. Powered by a CR2016 battery rated for approximately 3 years and housed in a mineral glass-protected case measuring 49.6 × 47.8 × 15.7mm and weighing 65 grams — the G-100 is a watch that earns its place on the wrist every single day. 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


Item model number ‏ : ‎ G-100-1BVMUR


Department ‏ : ‎ men


Batteries ‏ : ‎ 1 Lithium Metal batteries required. (included)


Date First Available ‏ : ‎ September 2, 2003


Manufacturer ‏ : ‎ Casio


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


Best Sellers Rank: #69,347 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry) #223 in Men's Wrist Watches


#223 in Men's Wrist Watches:


Display: Analog-Digital


Watch Movement Type: Quartz


Additional Features: Water Resistant


Power Source: Solar Powered


Strap Type: Two Piece Strap


Water Resistance Depth: 660 Feet


Sport Type: fitness


Clasp Type: Buckle


Water Resistance Level: Water Resistant


Embellishment Feature: Crystal


Closure Type: Buckle


Style Name: Sport


Shape: Round


Band Color: Black


Dial Color: Black


Theme: Army


Pattern: Camouflage


Face Style: Camouflage


Bezel Color: Black


Brand Name: Casio


Model Name: G100-1BV


Included Components: Two Piece Strap


Model Number: G-100-1BVMUR


Series Number: 100


Item Weight: 65 Grams


Global Trade Identification Number: 06


Manufacturer: Casio


UPC: 079767674106


Item Part Number: G100-1BV


Manufacturer Part Number: G-100-1BVMCI


Unit Count: 1.00 Count


Age Range Description: Adult


Item Type Name: Watch


Band Material Type: Resin


Case Material Type: Resin


Crystal: mineral


Case Diameter: 48 Millimeters


Band Width: 20 Millimeters


Case Thickness: 49.6 Millimeters


Band Length: 9 Inches


Bands: 1


Warranty Type: Limited


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Aug 28

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Top Amazon Reviews

    • Face is pretty small... Face is pretty small...
Review Image by Sslider
Pros: Quality watch for sure. Perfect combo of analog and digital if that's what you're looking for. Band is solid and comfortable. Personal Cons: While the actual case diameter is over 47mm, it has such a small face that it has the impression/look on the wrist of more like a 37-40mm watch.. (Picture for reference, my wrist is 7.5" diameter) Watch is probably perfect for someone looking for the smaller statured on the wrist, rock solid build of this G-Shock, but it wasn't for me. ... show more
Reviewed in the United States on February 23, 2026 Reviewed in the United States on February 23, 2026 by Sslider
    • Great watch for what it does, but description is very flawed.
I love my own Casio G-Shock watches, so when I was looking for a gift for my nephew's birthday, I looked at a lot of the different G-Shock watches here on Amazon.com for him. My nephew is in the Boy Scouts, and when I found this watch and read in the description that it has a compass, it made me decide to go ahead and order it, because I know he would love that feature, as well as the rugged good looks and durability of the watch. The description is/was as follows: "Round-face watch in resin with accurate digital compass around bezel, textured band with gunmetal-tone rivets, and logo emblem at twelve o'clock Mineral crystal dial window Features buckle closure, 100-hour chronograph, and compass with bearings based on 16 cardinal points measured in degrees Water resistant to 660 feet (200 M): suitable for recreational scuba diving" This is clearly a misrepresentation of what people will get when they purchase this watch. I would return this watch to Amazon and purchase one elsewhere, but his birthday is going to be celebrated this weekend, and time is running out. This is clearly an issue with Amazon's product description. With that said, the watch itself is representative of the high quality that I have come to expect from the Casio G-Shock line of timepieces. I am sure that it will make a fine gift for him and prove to be as rugged as my 12 year + Original G-Shock solar atomic watch that I wore at work and beat up pretty good, but it still functions perfectly. I had to rate the watch 5 stars based on the functions and durability it was designed for, and think it would be inappropriate to rate the product itself poorly because of an error in product description by Amazon. The watch is not what I was led to believe it was when I ordered it. Come on Amazon! Please address this inaccurate description and update it to provide factual details regarding its functionality. It is a fine watch, worth the price, but setting up expectations of certain features and then delivering a product that does not match the description is a disappointment and affects the trust of Amazon by its consumers. **Edit** 04/29/2015 To clarify, this watch DOES NOT have compass functionality, nor is it solar powered. It is a rugged G-Shock with analog and digital display with the usual stopwatch, dual time, alarm, etc., and the LCD display is "negative" - black background with silvery digits, which adds to its appeal in my case. Very nice watch, good price for what you get. The MSRP is $100.00, but I purchased it from Amazon for around $58.00. ... show more
Reviewed in the United States on April 29, 2015 by Sparkie
    • Lovely digi-analog
I love this watch. If you have small wrists this is a nice one to have, isnt gigantic like other gshocks. My only issue is the luminated dials dont last long after solar charge.
Reviewed in the United States on May 23, 2026 by Sanchez
    • Ups & Downs
This Analog/Digital Combination Watch is a Great Buy & there's more Ups than Downs if you ask me. 1st off its your Standard Watch Size & is not as Big as the Pics make it seem to be. The Style is Very Nice & has that Rugged Look & Feel to it. This Watch is made to withstand an Hard Active Lifestyle. Its Clear to see it can take some Abuse without being Harmed Thanks to the Materials. The Analog is Slightly Useless in the Dark seeing that you can only Truly Read the Hour & Minutes Hands. You would think the Numbers or Dotted Arrows for each Hour would Light up as well but they Don't Provide enough Light to Consider it as Help (In Complete Darkness). You Basically have to know your Timing based off of those 2 Hands only. The Saving Grace to Counteract this is the Digital System in the Watch. The Led provides the Light Source to Cover for its Flaw on the Analog. The Digital System also Comes with your Standard Feature Settings (Calendar, Time, Alarm, StopWatch & Dual Time). So its all sorts of Handy when you look at it. Also because of the Analog, Digital & Dual Time Feature you can now Keep the Time for 3 Different Events/Zones all at once. The only Flaw with the Digital is that from the 20Min Marker up to the 40Min Marker its Blocked when the Analog reaches around those Times (Its Not That Bad But Still). One More thing is the Setting Up of your Watch which can be a Pain the 1st time & if you have to Reset your Watch for what ever reason. The Buttons are a bit Hard to Push (One In Particular) & Holding them during the set up is not Nice lol. The Biggest Pain during set up is the Analog Clock which can Only Advance & can't Reverse. It Advances by 20sec per push or can be Held for a Auto Advancement but Don't go pass the time you want or you'll have to go pass all the Hours again just to reach back to where you belong. The Watch is Crafted to have a Great Appearance/Design but it has Ups & Downs. Yeah there's a few Problems due to the Design but the Mechanics/Materials of the Watch is Top Notch. Its of the High Quality you would expect from Casio with its Strong Build. ... show more
Reviewed in the United States on October 18, 2012 by TJS
    • Great buy
My first G-Shock and I am very happy with this. Easy to set time/date. Easy to read dial. Casio has been top quality for a long time.
Reviewed in the United States on June 5, 2026 by Tony Williamson Jr
    • Perfect G-Shock
After wearing a cheap Timex with a nylon band for a couple years, I was in desperate need for a new workout watch. I was looking for something with a stop watch for timing jogs, but didn't sacrifice on looks. This G-Shock is perfect. Early on in the search process, I decided to go with a G-Shock over a Nike, Puma, etc workout watch. I don't need the GPS tracking mode and felt the G-Shock had a better overall reputation for reliability. I've not been disappointed. It's the little things. For instance, the plastic bezel sticks out on the front so if it ends up on its face, it won't get scratched. You can replace the band if it gets screwed up. Before purchasing this watch, I read a lot of reviews and looked at a lot of G-Shocks in the store. This one received criticism for two primary things. 1. You have to hold a single button to advance the minute hand. That's the only way to set the time. 2. When the hands are between :20 and :35, it's hard to read the digital display. On number one, it's true, you have to hold a button to set the time. It's annoying .... once a year, when DST is over. On number two, I haven't noticed this to be irritating at all. Perhaps if you have problems seeing close up. Oh, and yes, the light only lights up the small digital display, but the watch hands glow in the dark. So, no issues telling the time in the dark. The biggest reason I got this watch is it's an affordable analog/digital watch. I love the look of analog, but enjoy the digital functionality. This one combines both in a very attractive package. I've worked out many times with it. It does not collect sweat or smell afterwards. And, it looks good enough for a business casual function. Are there nicer looking G-Shocks out there? Sure. But, for the price, you can't beat this one. (Also, no issues with the water resistance. I've had it in the shower and frequently do dishes with it on. Granted, it's not diving, but still, no water has infiltrated the face.) Update: I've now been wearing this watch daily since I purchased it in 2012. It is functioning 100%. Even more impressive, there are no scratches on the face. I cannot say enough about how nice the plastic bezel is. It does a great job protecting the face -- as is evidenced by several scratches on the plastic. The plastic band is still perfect also. Lastly, no battery replacements in that time. This thing is freaking awesome! And, it's under $60! ... show more
Reviewed in the United States on December 26, 2012 by Hipturt1015
    • Basically basic Basically basic
Review Image by spin_nin
Review Image by spin_nin
This was one of the first G-Shock watches I purchased. I have a 6 3/4" wrist, so I wanted a rugged, durable, and sensible watch that fit me. A lot of the newer G-Shock Classic watches, that I tried on at Macy's, were huge and they looked absolutely ridiculous on my smallish wrist like the Casio Men's GA110RG-1A G-Shock Black Watch, and the Casio G-Shock Quartz Men's Watch GA201-1A I'm happy to say that the G100-1BV watch fit me perfectly bet, even though I do like an analogue display, I think it's a little hard to read on this watch. I will agree with other reviewers when they point out that the digital display is completed obscured from view, twice a day, at 6:30 am / pm. The reverse digital display is also not easy to read without the illumination (which will kill the battery). The G100-1BV watch is light and comfortable. The buttons are all easy to use, but not so easy that you might accidentally press one of them. The included manual tells you how to adjust the watch's analogue and digital displays, set the date, set alarms, etc. Overall, compared to other watches in the G-Shock line up, this is very basic. This doesn't come with a ton of features, just the simple stuff. It is a good looking watch, it's all black, it's comfortable, it's lightweight, it's rugged, and it tells time. It is just what I thought I was looking for. Unfortunately, some day, the battery will die and that will be the end of this watch. I like the idea of the solar battery feature found on other G-Shock watches, as well as the ability of other G-Shock watches to sync with the atomic clock every night (but you have to put your watch in the window at night for this to take place with the 12 o'clock facing up). At $54, I think that the price is a little steep for the G100-1BV. If I had it to do over again, I might get the G9000-1V for $10 more. The G9000-1V also uses a battery that will die but, I think, it is a similar sized watch, offers more features, and it has an all digital display that is easier to read, plus, you get to have a MUDMAN! lol. I know I said I wanted an analogue display and that's what I got, but the digital display on some of the other G-Shock watches are easier to read than the analogue display of the G100-1BV, especially at night. I believe this watch is now discontinued because I cannot find it on Casio's gshock dot com web page so, you might want to take that into consideration if you decide to purchase this watch. ... show more
Reviewed in the United States on August 7, 2014 Reviewed in the United States on August 7, 2014 by spin_nin
    • this watch is a new beginning for me. this watch is a new beginning for me.
Review Image by Henry D
I used to have a great watch collection that started when I was 12 years old. It began with a Casio G-Shock watch that my uncle bought for me as a present when I visited Thailand. He took me shopping in the market and we stopped in front of a watch store. I remember the hot, sticky musk of summer Bangkok weather, ushering us inside the store with its cool air conditioning and ethereal lighting. My uncle looked at me and said that I could pick any watch that I wanted and that he would pay for it as a present to remember my family in Thailand. My eyes wandered and became fixated on a very large, and bulky plastic watch. It looked like something very technical and indestructible, like I had never seen before. I hadn't ever seen anything like it back in America. It had fancy dials, a stop-watch, and a number of cool features and gadgets. It was a Casio G-Shock. Over the course of 14 years I had collected many other watches, which I had kept in a watch box. As I grew older and began to work, these watches became much more expensive and fancier. I had watches for specific purposes; ones that I used for working in clinic, watches I wore to social gatherings, during sports, during running -- and a watch that my friend Chris had bought me the day I was a best man at his wedding. I even splurged the day I got into medical school by buying myself a Citizen Eco-Drive watch, solar powered with an alligator skin strap, which soon became my most favorite and coveted timepiece. I kept all of these timepieces neatly stored away in my room, until they disappeared this past Tuesday. A indecent excuse for a human being broke into my apartment and stole a large number of things that I own, but most upsetting to me, he took my entire watch collection. He even went through all of my other belongings and took watches that weren't in the box. Watches that weren't even worth a penny on the street or any pawn shop, only had sentimental value to me. Initially I was upset about the most expensive timepieces that I had lost, this depressed me for several days. But I realized a couple days ago that those pieces will be replaced someday -- after all it is only money. What will NEVER be replaced is that Casio G-Shock watch that my uncle bought me 14 years ago. I easily recalled that feeling I had, walking slowly through the store in Bangkok, Thailand, staring at all of the shiny pieces in their display cases, and finding myself finally fixated on that Casio. It was only right to begin a new collection with such a wonderful, perfectly engineered instrument of time. To the team that has been designing and engineering the G-Shock brand of timepieces for almost 30 years, I want to say thank for the memories. And to the man who robbed my apartment this past Tuesday: I'm Buddhist and I truly believe in karma. The universe has a way of correcting wrongs against others. ... show more
Reviewed in the United States on November 3, 2010 Reviewed in the United States on November 3, 2010 by Henry D

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