Set contents: Main unit, box, instruction manual, warranty card are attached to the instruction manual
Waterproof specification: 20 ATM water resistant function
World time GMT / UTC
It is GST-B400X which adopted the carbon bezel from the metal series "G-STEEL" of the alarm toughness watch G-SHOCK.
Developed a carbon bezel that combines carbon fiber reinforced resin and carbon sheet based on GST-B400, which is a slimmer version of G-STEEL.
Black IP processing is applied to the case, and a resin band is used for the band.
The color used is red, which is the G-SHOCK brand color.
The base model GST-B400 realizes miniaturization of parts, thinning of modules, and power saving, and maintains high functionality of Bluetooth® and solar while reducing the thickness.
In addition, the carbon core guard structure makes it the thinnest size in the G-STEEL series (as of March 2021) while maintaining impact resistance.
In terms of design, by reducing the button guards to the utmost limit, we adopted a large stainless steel button that is slim yet easy to push.
Three-dimensional parts are used for the dial, and the finish is particular about the appearance.
The G-STEEL series combines toughness and design by fusing different materials such as metal, resin, and carbon.
・ Smartphone link (time & place, world time for about 300 cities, alarm, timer, hand position correction, time change, mobile phone search, etc.)
・ Double LED light (super illuminator) that illuminates the dial and LCD
・ Impact resistant structure
・ Tough solar (solar charging system)
・ 20 ATM water resistant function
・ Mobile link function (function interlocking with compatible mobile phones by Bluetooth® communication)
・ Needle evacuation function (If the needle overlaps with the liquid crystal display and is difficult to see, the needle can be temporarily retracted from above the liquid crystal display)
・ World time: 38 cities around the world (38 time zones, with automatic daylight saving time setting function) + UTC (Coordinated Universal Time) time display, home time city replacement function
・ Stop watch (1/100 second (less than 1 hour) / 1 second ( 1 hour or more), 24-hour counter, with lap / split)
・ Timer (set unit: 1 second, maximum set: 60 minutes, measured in 1 second units)
・ 5 time alarms
・ Time signal
・ Battery indicator display
・ Power saving function (In a dark place, the display is turned off after a certain period of time to save power)
・ Fully automatic calendar
・ 12/24 hour display switching
・ Operation sound ON / OFF switching function
・ Date display (month / day display replacement)
・ Day of the week display (switching between 6 languages: English, West, French, German, Italian, and Russian)
-Double LED light: LED light for dial (with super illuminator, afterglow function, afterglow time switching (1.5 seconds / 3 seconds)), LED backlight for LCD part (super illuminator, afterglow function, afterglow time switching (1.5 seconds) With (seconds / 3 seconds)
Casio G-Shock Master of G Mudmaster GG1000 G-Shock Master of G MUDMASTER GGB100 G-Shock Master of G MUDMASTER GWG1000 Casio G-Shock Mudmaster x The British Army GGB100BA-1A G-shock Men's Analog-Digital