Description


This is the model sold in Japan.　Band wearable size  150-205mm

【feature】
From the toughness watch G-SHOCK, the G-STEEL GST-B400 is slim and has an improved design.
By reducing the size of the components and making the module thinner, we have reduced the thickness while maintaining the functionality of Bluetooth® and solar power, and have significantly reduced power consumption. In addition, the carbon core guard structure makes it the thinnest in the G-STEEL series (as of March 2021). It measures 12.9mm from the back to the top of the bezel, which is more than 1mm thinner than the GST-B100. In terms of design, it uses large stainless steel buttons that are easy to press. This is a standard model with a silver case, and you can enjoy the difference in texture by applying different finishes to the top and middle bezels.
The G-STEEL series combines different materials, metal and resin, to achieve both toughness and design.

【specification】
basic information
Case size (length x width x thickness)
46.6 × 49.6 × 12.9 mm
mass
160g
Case/bezel material
Resin/stainless steel
band
Metal band (stainless steel)
solid band
One-push three-fold buckle
structure
Shock-resistant structure (shock resist)
Carbon core guard structure
Waterproof
20 ATM water resistant
Power supply/battery life
Tough solar (solar charging system)
Mobile link/app linkage function
Mobile link function
Mobile link function (function linked via Bluetooth communication with compatible mobile phones)
app
Compatible with “CASIO WATCHES”
exterior
glass
inorganic glass
Size that can be attached to the band
150～205mm
others
neobright
clock function
world time
World time: 38 cities around the world (38 time zones, automatic summer time setting function) + UTC (coordinated universal time) time display, home time city switching function
stopwatch
Stopwatch (1/100 second (less than 1 hour)/1 second (more than 1 hour), 24 hour meter, with lap/split)
timer
Timer (set unit: 1 second, maximum set: 60 minutes, measured in 1 second increments)
alarm
5 time alarms/time signal
light
Double LED light: LED light for dial (with super illuminator, afterglow function, afterglow time switching (1.5 seconds/3 seconds)), LED backlight for LCD section (super illuminator, afterglow function, afterglow time switching (1.5 seconds) /3 seconds)
light color
LED: White
calendar
Fully automatic calendar
Operation sound ON/OFF switching function
Operation sound ON/OFF switching function
Power saving function
Power saving function (turns off the display after a certain period of time in a dark place to save power)
Battery display/warning
battery indicator display
driving time
Operating time without solar power generation from full charge
When using functions: Approximately 7 months
In power saving state: Approximately 18 months
accuracy
*If not linked to a smartphone, it will operate with normal quartz accuracy (average monthly difference of ±15 seconds).
Other functions
Needle retraction function (If the hands overlap the LCD display and are difficult to see, you can temporarily retract the hands from above the LCD display.)
12/24 hour display switching
Date display (month/day display swap)
Day of the week display (switchable between 6 languages: English, Spanish, French, German, Italian, and Russian)
​

※The contents of the product photo are all.　See photos for accessories and condition　if you have any questions' please feel free to contact us.
※Even if the warranty period is stated in the product description'Please note that the warranty may not apply to overseas purchasers outside of Japan.