Skip to search

Shopping from US? View this page in English with prices in USD.

Switch
JDM Parts     Bestsellers     New arrivals     Limited Time Sale     Marketplace     80,838 Items
Japan : 11/06 01:05   EN
Europe, UK: Wednesday, Nov 11
USA: Monday, Nov 9
Australia: Wednesday, Nov 11
Asia: Tuesday, Nov 10
UAE: Tuesday, Nov 10

Order within 22 Hours 54 mins with Scheduled Delivery. If you place an order within this time, We will ship on Monday, Nov 9 2026. This delivery time is calculated by DHL & Fedex. You can check the exact delivery date on checkout page.

Buyer Protection

Full refund if not genuine. Full or partial refund, if the new item is not as described.

Write a review!

No reviews on this item...

     Description (3,644 characters)
Set contents: Main unit, box, instruction manual, warranty card are attached to the instruction manual
Waterproof specification: 20 ATM water resistant function
solar
World time GMT / UTC
alarm
Since its launch in 1983, the toughness watch G-SHOCK has continued to evolve in search of insatiable strength.
G-STEEL's GST-B400 is slim and has improved design due to the thin module and carbon core guard structure.
Achieve further miniaturization of parts and thinness of modules
While reducing the thickness, it maintains the high functionality of Bluetooth® and solar, and significantly reduces power consumption.
In addition, the carbon core guard structure makes it the thinnest in the G-STEEL series (as of December 2020) while maintaining impact resistance.
The distance from the back to the bezel top is 12.9 mm, which is more than 1 mm thinner than the GST-B100.
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.
By applying different finishes to the TOP bezel and the middle bezel, you can enjoy the difference in texture, and the finish is particular about the appearance.
In addition to the two standard models, the GST-B400 in a silver case and the GST-B400D in all silver, the resin band is combined with the red vapor-deposited dial, which is the symbol color of G-SHOCK, and the black IP bezel. GST-B400AD and GST-B400BD with black IP applied to the case and band and blue vapor deposition on the dial are available.
Due to the power saving of the module, the texture has been improved with three-dimensional parts and a dial with vapor deposition.
The G-STEEL series combines toughness and design by fusing different materials such as metal and resin.

・ 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 daylight saving time automatic setting function) + UTC (Coordinated Universal Time) time display, home time city replacement function
・ Stopwatch (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)
・ Driving time without solar power generation from full charge When using the function: Approximately 7 months When using the power saving state: Approximately 18 months * Normal quartz accuracy (average monthly difference ± 15 seconds) when not linked with a smartphone ) Works with
* GST-B400, GST-B400D, GST-B400AD, GST-B400BD have been certified by the Radio Law of Japan.



Tags:

Grey   Navy blue  


Related products

Products Similar to 'CASIO'

HOT ITEMS

Bestseller
Holbein color pencil 150 colors set
Holbein color pencil 150 colors set

C$ 315
Hasegawa 1/20 Sculpture Beauty's No.03 Sporty Unpainted Resin Kit SP521
Hasegawa 1/20 Sculpture Beauty's No....
C$ 44
CASIO Oceanus electric wave solar OCW-T150-2AJF silver(N)
CASIO Oceanus electric wave solar OCW-T1...

C$ 632
New Model
BANDAI SPIRITS GUNDAM ASSEMBLE STARTER SET 01 (ST01)
BANDAI SPIRITS GUNDAM ASSEMBLE STARTER S...
C$ 45
SEIKO Black SND399P (N)
SEIKO Black SND399P (N)
C$ 143
CITIZEN CITIZEN ANA-DIGI TEMP reprint model watch black JG2105-93E
CITIZEN CITIZEN ANA-DIGI TEMP reprint mo...
C$ 382
TAMASHII NATIONS Jumbo Machinder Brave Raideen, approximately 600mm, PE, ABS, and PVC painted action figure
TAMASHII NATIONS Jumbo Machinder Brave R...
C$ 172
CASIO  G-SHOCK  GULFMASTER Radio Solar GWN-1000B-1BJF Black
CASIO G-SHOCK GULFMASTER Radio Solar G...

C$ 651
CASIO watch lineage radio wave solar LCW-M100TSE-1AJF men's silver
CASIO watch lineage radio wave solar LCW...

C$ 256
New Model
CASIO Lineage Wave Ceptor Radio Solar LIW-M610DB-1AJF Black
CASIO Lineage Wave Ceptor Radio Solar LI...

C$ 287
CASIO G-SHOCK FROGMAN radio wave solar GWF-1000-1JF men
CASIO G-SHOCK FROGMAN radio wave solar G...

C$ 680
Kotobukiya Illustrator Original: Deceptive Rabbit Standing Bunny by Kafun, 1/7 Scale PVC Pre-painted Figure
Kotobukiya Illustrator Original: Decepti...
C$ 275

Bestsellers

Latest from Our Blog

Discovery Japan Mall
Experience it better in our app.