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Target: Men
Set contents: Body, box, instruction manual, warranty card attached to the instruction manual, 1 year warranty
Reinforced waterproof for daily life: 20BAR
Mobile link function that can be linked by Bluetooth communication with compatible smartphones
Shock-resistant structure that resists shock and vibration
Set 5 flight schedules and display the remaining time on the clock in seconds, countdown alarm
Fully automatic double LED light that illuminates the dial and LCD
* When not linked with a smartphone, it operates with normal quartz accuracy (average monthly difference of ± 15 seconds)

With calendar function
Case / Bezel Material: Resin / Stainless Steel Product Introduction A new aviation watch with the accuracy and functionality required for flight from the G-SHOCK “Gravity Master”, which continues to evolve in pursuit of toughness
Large hour and minute hands and index for improved visibility
In addition, up to five flight schedules can be set, and a countdown alarm that displays the remaining time until the scheduled time on the clock in seconds
With a large LCD that reflects the glass cockpit used in the latest aircraft and current passenger aircraft, it is possible to confirm this information instantly.
In addition, the function of each button is distributed by the configuration of 6 keys including 5 side keys and front light key, contributing to the improvement of operability.
In exterior design, G-SHOCK's first 7 × 33 dot display large LCD and IP-processed multi-sided metal bezel image the latest high-tech aircraft
In addition, fashionability is enhanced by the two-color molding band.
In terms of functionality, it is equipped with a “Connected engine” that supports time correction via Bluetooth connection.
It is possible to manage and save a record of the distance and time of flight missions in the flight log by setting the countdown alarm and the point memory function by connecting with the smartphone with the Bluetooth communication function and connecting with the dedicated application “G-SHOCKConnected *” Is possible
In addition, in order to improve the accuracy of time correction, time information can be adjusted by obtaining time information from an Internet time server, and simple settings such as world time, timer, and alarm are also provided.
In addition to these smartphone link functions, practical functions such as high-brightness full-auto double LED lights, world time and stopwatch can be driven stably by Casio's unique power-saving technology Tough Solar.
It is the appearance of the Gravity Master GR-B100 series that has evolved further, such as the highly visible design required for aviation watches and the installation of a new module with enhanced utility.
* G-SHOCK smartphone link model dedicated application
By connecting with a “Connected engine” that supports Bluetooth connection, time settings such as automatic time correction and world time can be linked with a smartphone to display the latest time zone and daylight saving time information reflected around the world.
Realization of solar drive with heavy load function by installing tough solar
* Installation of the dedicated app “G-SHOCK Connected” is required to connect to a smartphone.
Compatible with our specified iPhone and Android smartphone
* GR-B100 is certified by the Japanese Radio Law.
* The smartphone link function depends on the specifications of the mobile phone and the service of the telecommunications carrier in the country where it is used.

・ Shock-resistant structure
・ Tough solar (solar charging system)
・ 20 ATM water resistant function
・ Mobile link function
・ Needle retraction function (If the needle overlaps the LCD display and is difficult to see, the needle can be temporarily retracted from the LCD display.)
-World time: 39 cities (39 time zones, daylight saving time automatic setting function) + UTC (universal coordinated time) time display, home time city replacement function, UTC direct call function
・ Stopwatch (1/1000 second (less than 1 hour) / 1/10 second (1 hour or more), 24-hour counter, with split)
・ Timer (set unit: 1 second, maximum set: 24 hours, measured in 1/10 second units)
・ 5 multi alarms (countdown alarm (DAILY, I TIME, SCHEDULE)), time signal
・ Battery indicator display
・ Power saving function (In a dark place, when a certain time has passed, the display is turned off and the hand movement is stopped to save power)
・ Full auto calendar
・ 12/24 hour system display switching
・ Operation sound ON / OFF switching function
・ Double LED light: LED light for dial (full auto light, super illuminator, afterglow function, afterglow time switching (1.5 sec / 3 sec)), LED backlight for LCD part (full auto light, super illuminator, (With afterglow function, afterglow time switching (1.5 seconds / 3 seconds))
・ Driving time without solar power generation from full charge: When using functions / About 6 months, When power saving state / About 19 months * When not working with a smartphone, normal quartz accuracy (average monthly difference ± 15 Second)
Brand introduction G-SHOCK has built a new concept of toughness on watches.
It all started with a developer's passion for creating a watch that would not break even if dropped, and a reckless challenge that overturned the common sense of the time.
Over 200 prototypes have been repeated, and about two years have been spent, and the shock-resistant structure has been completed.
It is the birth of technology to play the core of toughness
Since then, G-SHOCK has continued to evolve endlessly
Structure, material, function
Pursuing further toughness in every aspect

Model Number: GR-B100-1A2JF

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★★★★★ Good visibility
Post date : 3/09/2019

Google Translation
Translated by Google
Good visibility
Visibility is particularly excellent. I use it at work.

Original Japanese review Original Japanese review


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★★★★★ Even if it is not a radio clock, time correction is perfect!
Post date : 25/06/2019

Google Translation
Translated by Google
Even if it is not a radio clock, time correction is perfect!
We like design and purchase. It looks cool as shown in the photo. I got a lighter impression than I expected. I don't know the durability yet, but I have 5 stars with the expectation of G-SHOCK. I've always been looking for a solar-powered Digiana, but I bought this product that would correct the time in conjunction with a smartphone at an affordable price. It seems to be useful because it requires work and accurate time!

Original Japanese review Original Japanese review


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★★★★★ Cool and good
Post date : 28/05/2019

Google Translation
Translated by Google
Cool and good
I think it was good to buy a watch that is moderately sized and cool, and that has good visibility even in the dark.

Original Japanese review Original Japanese review


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★★★★★ A perfect balance of size, weight and luxury
Post date : 8/01/2019

Google Translation
Translated by Google
A perfect balance of size, weight and luxury
I was quite lost. I'm quite confused with the mad master, but here is a great answer! Visibility is outstanding, and the size and weight as a G-Shock is the optimal balance. The blue color on the bezel is also deep blue, creating a sense of luxury. I already purchased edifice's smartphone link type, but now I download the smartphone link software for G-Shock and both are working correctly.

Original Japanese review Original Japanese review


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