Casio G-Shock GA-1100 Watches

About the Watch in short. Budget series from the Gravitymaster line for pilots and military pilots. For the “air” design meets the streamlined body and arrows in add. windows similar to an airplane. Thanks to large hour markers and hands, the readability of the dial will be readable even in conditions of poor visibility. Official positioning does not limit the potential audience – young people often prefer the GA-1100 due to their dissimilarity to other G-Shocks. Two asymmetric digital windows are next to each other – important information is always before your eyes. The watch is equipped with a dual sensor, which includes a thermometer and a digital compass. In poor lighting, you can use the LED backlight.


Quick Content Guide

  1. Japanese approaches to Tough and Functional Watches in GA-1100 *the most distinctive features in details
  2. General information about the watch *year of first release, model range etc.
  3. Feedback from Users and Experts *anonymous from different sources
  4. GA-1100 Model Range *in different colors and bands
  5. The most distinctive specs *from our Editorial point of view
  6. Other G-Shock GA Watches *similar by price and functions but different by cases
  7. Official GA-1100 Video *only from Casio Company
  8. G-Shock GA-1100 on the wrist! *only images and only on the wrist
  9. Official GA-1100 Specs *all details and for base version GA-1100-1A3
  10. GA-1100 Comparison Table *with similar G-Shock Watches
  11. Full Photo Gallery *various images

Enjoy Japanese approaches to Tough and Functional Watches!

*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.



General Information

Price220$ *average Amazon Price, we may earn commission from purchases
Year of first Release2015
Module Number5441 / Manual
Model RangeGRAVITYMASTER (Developed in response to pilots’ needs, these tough watches offer improved accuracy, strength and practicality. Famous for unique and beautiful aviation design (usually analog) and advanced technologies.)
Battery TypeSR927W × 2 (G-Shock Batteries)
Buy Battery on Amazon →
Other Divisions the GA-1100 belongs to: *you may find all watches of the division by clicking on the linkG-Shock Ana-Digi
G-Shock Compass

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

PROs
+ compass
+ stop watch
+ big and easy to press buttons
+ plenty of functions
+ easy to track second time zone. Very useful when you working with somebody in the different time zone
+ cool looking watch

CONs
– not accurate Temp function
– digital parts need to be brighter

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

PROs
+ hourly Time Signal
+ affordable price
+ 5 daily alarms
+ 1/100-second stopwatch
+ Auto-Back Light
+ compass
+ sunrise Sunset

CONs
– no Radio-controlled feature
– mineral (Spherical Glass)
– 2 years battery
– no Alpha Gel / Vibration Resistance
– no Tough MVT
– no Magnetic Resistance

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GA-1100 Model Range *may be updated

*You may find updated information about colors on our G-Shock 2021 New Releases page →

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The most distinctive specs of GA-1100 *Editorial
— 200-meter water resistance
(good for swimming but not for deep diving)
— Digital compass (measures and displays direction as one of 16 points)
— Thermometer (can measure and display the outside temperature in a range from -10 C to 60 C)
Dual Time (In addition to the time in your current location, which is indicated by wide hour and minute hands, a second time can be indicated by the dial at 9 o’clock)

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

These are not all G-Shock GA Series. Here is a list of All G-Shock GA Watches →


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Official GA-1100 Video

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Official Marketing Focus from Casio

Introducing the latest new additions to the GRAVITYMASTER Series of the watch that is conceived and developed as aviation timepiece.
This new model features a new type of World Time function that is designed with international pilots in mind. In addition to the time in your current location, which is indicated by wide hour and minute hands, a second time can be indicated by the dial at 9 o’clock.
Other pilot-friendly functions include a large button at 9 o’clock that can be used to trigger a 60-second continuous bearing or temperature sensor reading with a single press. Also, a high-luminosity LED display light enables reading of display information even in the dark.
All of this and much more makes this new GRAVITYMASTER model the logical watch of choice as aviation watches.


G-Shock GA-1100 on the wrist!

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Official GA-1100 Specs / Features *for base version GA-1100-1A3

  • Case / bezel material: Resin / Stainless steel
  • Resin Band
  • Neobrite
  • Shock Resistant
  • Mineral Glass / Spherical Glass
  • 200-meter water resistance
  • LED light (Super Illuminator)
    Auto light switch, selectable illumination duration (1.5 seconds or 3 seconds), afterglow
  • Digital compass (NORTH)
    Hand indication of north (60 seconds continuous measurement)
    Measures and displays direction as one of 16 points
    Measuring range: 0 to 359°
    Measuring unit: 1°
    Bidirectional calibration
    Magnetic declination correction
  • Thermometer
    Display range: –10 to 60°C (14 to 140°F)
    Display unit: 0.1°C (0.2°F)
  • World time
    31 time zones (48 cities + coordinated universal time), daylight saving on/off
  • Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)
  • 1/100-second stopwatch
    Measuring capacity: 59’59.99”
    Measuring modes: Elapsed time, split time, 1st-2nd place times
  • Countdown timer
    Measuring unit: 1 second
    Countdown range: 60 minutes
    Countdown start time setting range: 1 minute to 60 minutes (1-minute increments)
  • 5 daily alarms
  • Hourly time signal
  • Full auto-calendar (to year 2099)
  • 12/24-hour format
  • Button operation tone on/off
  • Regular timekeeping
    World time hour and minute
    Analog: 3 hands (hour, minute (hand moves every 10 seconds), second)
    Digital: Hour, minute, second, pm, month, date, day
  • Accuracy: ±15 seconds per month
  • Approx. battery life: 2 years on SR927W × 2
  • Size of case : 50.8×52.1×16.9mm
  • Total weight : 88g

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GA-1100 Comparison Table with similar G-Shock Watches

GPW-2000

GA-1100

GPW-1000

Price (Amazon)

Year of first Release

2017

2015

2014

Accuracy

Radio-controlled (via atomic watch signals), Bluetooth (via phone app), GPS Signal Reception

±15 seconds per month

Radio-controlled (via atomic watch signals), GPS Signal Reception

SmartWatch Features

G-Shock Connected App (simplifies certain watch operations by letting you perform them on your phone screen)

No

No

Light

Neobrite (hands and hour markers) and LED light (Super Illuminator)

Neobrite (hands and hour markers) and LED light (Super Illuminator)

Neobrite (hands and hour markers) and LED light (Super Illuminator)

Alarm

1 Alarm

5 daily alarms

1 independent daily alarm

Timer

1 minute units, maximum 24 hours, 1 second measurements

Measuring unit: 1 second
Countdown range: 60 minutes
Countdown start time setting range: 1 minute to 60 minutes (1-minute increments)

Measuring unit: 1 second (maximum 24 hours)

Stopwatch

1 second measurement, 24 minutes total

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

1/20-second stopwatch; measuring capacity: 24 minutes; elapsed time; split time, 1st and 2nd place times

Hourly Time Signal

No

Yes

No

World Time

28 cities (39 time zones + UTC, automatic DST)
Two city time display

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

27 cities (40 time zones, daylight saving on/off) and Coordinated Universal Time

Alpha Gel /
Vibration Resistance

Yes

No

No

Auto-Back Light

No

Yes

No

Compass

No

Yes

No

Sunrise Sunset

No

Yes

No

Tough MVT

Yes

No

Yes

Magnetic Resistance

Yes

No

No

Case / bezel material

Resin / stainless steel

Resin / stainless steel

Resin / stainless steel

Glass

Sapphire Glass with non-reflective coating

Mineral (Spherical Glass)

Sapphire Glass with non-reflective coating

Battery

Solar Powered CTL1616

2 years on SR927W

Solar Powered CLB2016

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

66x57.1x18.2

50.8×52.1×16.9

 66×56×18.8

Full features (if you want to know more)

GPW-2000 Wiki

GPW-1000 Wiki

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GA-1100 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 GA-1100 (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 120$ on eBay →
starting from 20$ on PacParts →


Recent News about GA-1100 

All Casio GA-1100 News →


You ask, we answer…

What does Digital compass in GA-1100 do?

It measures and displays direction as one of 16 points.

How does Thermometer in GA-1100 work?

It can measure and display the outside temperature in a range from -10 C to 60 C.

What is Dual Time in GA-1100?

In addition to the time in your current location, which is indicated by wide hour and minute hands, a second time can be indicated by the dial at 9 o’clock.


Not sure about GA-1100? There are more G-Shocks!

Back to All G-Shock Models →

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