Casio G-Shock GD-100 — High-intensity LED & Over-sized Buttons

Rating: 3.5 out of 5.
Size★★
Weight★★★
Functions★★★
Materials★★★★★
Battery Years★★★★★
Price★★★
How did we compose this rating? Enjoy our calculations →

GD-100 Model Range *may be updated

*Want to be the first to know about new G-Shock Updates? Here we store all recent Monthly G-Shock Updates →


Quick Content Guide

  1. GD-100 Model Range *in different colors and bands
  2. General information about the watch *year of first release, model range etc.
  3. G-Shock GD-100 Display Guide *for key functions only
  4. G-Shock GD-100 on the wrist! *only images and only on the wrist
  5. GD-100 Usage Patterns *what the watch is usually meant for
  6. Feedback from Users and Experts *anonymous from different sources
  7. GD-100 Limited Editions *unique style, materials, and price
  8. The most distinctive specs *from our Editorial point of view
  9. Other G-Shock GD Watches *similar by price and functions but different by cases
  10. Official GD-100 Specs *all details and for base version GD-100-1B
  11. Famous people wearing G-Shock GD-100! *updates
  12. Japanese Unique Features in GD-100 *the most distinctive features in details
  13. GD-100 Comparison Table *with similar G-Shock Watches
  14. Full Photo Gallery *various images
  15. Recent News about GD-100 *the latest breaking news and videos

About the Watch in short. Introducing a collection of new G-SHOCK digital models whose big faces and cases give them a look of power and strength.
A high-intensity LED makes the digital easier to read, even in the dark.
A choice of either dark-on-light or light-on-dark LCD is available, both with a black case and band.



General Information

Price$140 *average Amazon Price, we may earn commission from purchases
Year of first Release2010
Module Number3263 / Manual
Model RangeSTANDART DIGITAL (This Line includes Digital G-Shocks that are the best in “price/quality” category. Usually have traditional digital functions.)
Battery TypeCR2025 (G-Shock Batteries)
Buy Battery on Amazon →

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G-Shock GD-100 Display Guide *for key functions only. For you to know how it works))

Timekeeping

The Timekeeping Mode’s Multi Time feature gives you quick and easy access to the current time and date in four different cities, numbered from T-1 (Time 1) through T-4 (Time 4). T-1 is your Home City Time, and T-2, T-3, and T-4 are Local Times. Local Times are kept in synchronization with your Home City Time (T-1).

World Time

World Time shows the current time in 48 cities (31 time zones) around the world.
– All of the operations in this section are performed in the World Time Mode, which you enter by pressing (C).

Alarms

Your watch has a total of five alarms, each of which you can configure as a daily alarm or one-time alarm.

Countdown Timer

The countdown timer can be set within a range of one second to 24 hours. An alarm sounds when the countdown reaches zero.
– All of the operations in this section are performed in the Countdown Timer Mode, which you enter by pressing (C).

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G-Shock GD-100 on the wrist!

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GD-100 Usage Patterns *what the watch is usually meant for

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Feedback from Users *accumulated information from our own comments and emails, forum threads, socials, reviews, etc.

PROs
+ date and clock display high readabilty
+ 7 years battery life
+ high brightness LED backlight
+ simple design
+ a really tough watch
+ quality timepiece
+ perfect watch, reliable and classy
+ love the black on black and the backlight is sweet too
+ size fits good on the hand too. Its a simple watch but it looks classy

CONs
– small alarm signal mute display
– the negative display is pretty bad

Feedback from Experts *based on comparison info with similar watches by price, model range, etc.

PROs
+ hourly Time Signal
+ 31 time zones
+ 7 years battery

CONs
– no Radio-controlled feature
– no Data Memory
– no Moon Graph
– no Tide Graph
– not so small 55×51.2×17.4mm

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GD-100 Limited Editions *unique style, materials, and price

GD-100-1B

The Listing of All G-Shock GD-100 Limited Watches → *with detailed description about the style

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What we like in GD-100 *comments by experts with 10 years experience in writing about Casio watches
— 200-meter water resistance
(good for swimming but not for deep diving)
— Multi time (you can check the current time in 4 different cities at once)
— Big face (gives a look of power and strength for the watch)

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Other G-Shock GD Watches *similar by price and functions but different by cases


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Official Casio Description. Based on the successful analog/digtial GA100 X-large G series, G-Shock introduces an all digital version line-up. Black resin band digital watch with black face. Over-sized buttons come with a checkered anti-slip surface to make operations fast and sure. All of this plus high shock resistance and water resistance makes these G-SHOCK models the perfect choice for casual wear just about everywhere.


Official GD-100 Specs / Features *for base version GD-100-1B

  • Case / bezel material: Resin
  • Resin Band
  • Shock Resistant
  • Mineral Glass
  • 200-meter water resistance
  • LED Backlight
    Auto light switch, selectable illumination duration, afterglow.
  • Flash alert
    Flashes with buzzer that sounds for alarms, hourly time signal, countdown timer time up alarm
  • Multi time (4 different cities)
  • World time
    31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city / World time city swapping
  • 1/100-second stopwatch
    Measuring capacity: 23:59’59.99”
    Measuring modes: Elapsed time, split time, 1st-2nd place times
  • Countdown timer
    Measuring unit: 1/10 second
    Input range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)
  • 5 alarms (daily or one-time)
  • Hourly time signal
  • Full auto-calendar (to year 2099)
  • 12/24-hour format
  • Button operation tone on/off
  • Regular timekeeping: Hour, minute, second, pm, month, date, day
  • Accuracy: ±15 seconds per month
  • Approx. battery life: 7 years on CR2025
  • Size of case : 55×51.2×17.4mm
  • Total weight : 72g

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Famous people wearing G-Shock GD-100!

Actor Chris Pratt (Owen Grady) is wearing G-Shock GD-100

Have you seen this watch with another person? Let us know!


Enjoy Japanese Unique Features in GD-100!

*some images are about G-Shock 5000/5600 cases, but the technology, approaches, concepts and philosophy remains the same for the whole G-Shock Model Range

Hollow case structure. Based on a realization that “shocks are not transmitted inside a bouncing rubber ball,” the structure was designed to let the module float inside the case, relieving shocks transmitted from outside. Today, the module’s shock resistance is realized through further technical innovations. But the revolutionary tough structure that gave G-SHOCK its origin began here.

All-directional covering. If the watch is dropped, the protruding bezel fully enclosing it absorbs the shock, protecting the buttons directly connected to the module and alleviating shocks from all directions. The bezel also guards the surface of the crystal. The band is curved stiffly at the point of connection with the case, moreover, enabling it to serve as a shock absorber and prevent direct shocks to the back of the case.

Protective cushioning of key parts. The crystal oscillator and other critical parts inside the module are guarded individually by cushioning material. Any strong shock to the watch causes immediate distortion of the cushioning inside the module, preventing contact failure and malfunction.

Japan Quality. Constructed with genuine quality, CASIO products provide truly practicable applications in which functionality and beauty combine. The leading-edge LSI technologies and skilled craftsmanship that give life to CASIO watches exemplify the quality Japan boasts in the world marketplace.
For CASIO, “faith in manufacturing” refers to an inexorable advancement of digital technologies and an uncompromising commitment to fine craftsmanship. This faith engenders unparalleled performance that not only elevates CASIO watches as close as possible to perfection, but that actually changes their wearers’ lifestyles.

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GD-100 Comparison Table with similar G-Shock Watches

GD-100

Price (Amazon)

Year of first Release

2010

2009

2002

Accuracy

±15 seconds per month

Radio-controlled (via atomic watch signals)

 ±15 seconds per month

SmartWatch Features

No

No

No

Light

LED Backlight

Full-Auto Illuminator

Electro-luminescent backlight

Alarm

5 alarms (daily or one-time)

5 daily alarms

5 independent multi alarms

Timer

Measuring unit: 1/10 second
Input range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)

1/1 min. – 24 hours

Input range: 1 minute to 24 hours
Unit: 1 second
Other: Auto-repeat

Stopwatch

1/100-second stopwatch
Measuring capacity: 23:59’59.99”
Measuring modes: Elapsed time, split time, 1st-2nd place times

Stopwatch function – 1/100 sec. – 24 hours

1/100-second stopwatch
Measuring capacity: 23:59’59.99”
Measuring modes: Elapsed time, split time, 1st-2nd place times

Hourly Time Signal

Yes

No

Yes

World Time

31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city / World time city swapping

Displays the current time in major cities and specific areas around the world

29 time zones (27 cities), city code display, daylight saving on/off

Data Memory

No

No

Yes

Moon Graph

No

Yes

No

Tide Graph

No

Yes

No

Case / bezel material

Resin

Resin

Resin / Stainless steel

Glass

Mineral Glass

Mineral Glass

Mineral Glass

Battery

7 years on CR2025

Solar Powered CTL1616

10 years on CR2025

Size (mm) *we consider 48.9×42.8×13.4 to be a traditional watch size (as in DW-5600). So you are to compare how far or close the watch is to this size

55×51.2×17.4

52.40x50x17.70

52.4×45.9×16.5


Full features (if you want to know more)

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GD-100 Replacement Band (Strap) *availability
We think it is very important (before buying a new watch) to know if there will be some choice as for replacement bands for GD-100 (in future or even now). So we made a research and you shouldn’t worry about your future as the bands are available for buying.

starting from 47$ on eBay →
starting from 37$ on PacParts →


Recent News about GD-100 *on casiofanmag.com

  • Enjoy our research as for GD-100 PROs & CONs features. We analyzed user reviews, forum threads, and other social signals. Then we deleted duplicates and listed only unique and important features. Feedback from Users *accumulated information from our own comments and emails, forum threads, socials, reviews, etc. PROs+ date and clock display […]
  • Can’t choose between G-Shock GD-100, GW-7900 and G-2900? Enjoy our comparison table and the best features unique list of each series. *Want to compare some other features? Please, comment and we will improve our table. GD-100 ProfileAverage Amazon Price: $140 (yes, we may earn a commission on qualifying purchases from our links […]
  • Following their announcement of pro BMX street rider Nigel Sylvester joining Casio as an official G-Shock team rider, G-Shock unveils Nigel Sylvester’s signature timepiece: the GD100NS-7. Year of Release: 2011 Collaboration Company: https://www.instagram.com/nigelsylvester/ This collaborative watch infuses Nigel’s street style with G-Shock’s toughness to compliment and withstand his riding needs. The stark white […]

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You ask, we answer…

What does 200-meter water resistance in GD-100 mean?

The watch is good for swimming but not for deep diving.

What is Big face in GD-100?

It gives a look of power and strength for the watch.

What does Multi time in GD-100 mean?

You can check the current time in 4 different cities at once.


Not sure about GD-100? There are more G-Shocks!

Back to All G-Shock Models →

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