Casio G-Shock GD-400 Watches

*GD-400GB-1B2 – Updated December 2022 color!

About GD-400 in Short. A model for those who value strength and fortitude in watches most of all. On the front of the case there is a pair of special bezel protectors – even with a very strong impact, the glass in the watch will remain intact. The strap is attached on both sides with two powerful screws and is secured by an additional insert. The designers knowingly made the strap with a “texture” that resembles a durable fabric – the series is highly regarded by the military because of its aggressive and masculine design. A stopwatch for 24 hours, a timer, 5 alarms and a flashing signal will help you in tactical adventures. In the dark, you won’t be left in the dark – the GD-400 has an LED illuminated dial.

General Information

Price$89  *average Amazon Price, we may earn commission from purchases
Year of First Release2014
Battery Type CR2016 (Casio Batteries)
Manual3434 (official)

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

+ highly visible red negative number display
+ LED backlight
+ strong strap
+ different time zones
+ attractive design
+ comfortable on the wrist

– not found yet

GD-400 Model Range *may be updated

*Want to be the first to know about new G-Shock Updates? Here we store all recent Monthly G-Shock Updates →

The most distinctive specs of GD-400 *Editorial
200-meter water resistance (good for swimming but not for deep diving)
Multi time (you can check the current time in 4 different cities at once)
Super Illuminator (high-brightness LED backlight with auto light switch)
Face protectors (steel plates for extra protection of the bezel and dial)
Flash alert (Flashes with buzzer that sounds for alarms, hourly time signals)
World time for 31 time zones (48 cities)
Stopwatch with 24-hour Measuring capacity

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

Official Casio Description. Introducing a collection of G-SHOCK models with face protectors that are so popular for young aficionados of skateboarding and other street sports. Classic designs are freshened up with a choice of five different color variations. These models come with protector for the areas where the band joins the watch, which protect against impact from the back of the watch. High-luminosity LED lighting provides easy reading, even in the dark.

Casio GD-400 on the wrist!

Official GD-400 Specs / Features *for base version GD-400-4

  • Case / bezel material: Resin
  • Resin Band
  • Mineral Glass
  • Shock Resistant
  • 200-meter water resistance
  • LED backlight (Super Illuminator)
    Auto light switch, selectable illumination duration (1.5 seconds or 3 seconds), afterglow
  • Flash alert
    Flashes with buzzer that sounds for alarms, countdown timer (time up), hourly time signal
  • Multi Time (4 different cities)
  • World time
    31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping
  • 1/100-second stopwatch
    Measuring capacity: 23:59’59.99”
    Measuring modes: Elapsed time, split time, 1st-2nd place times
  • Countdown timer
    Measuring unit: 1/10 second
    Countdown range: 24 hours
    Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)
  • 5 daily alarms or one-time alarms
  • Hourly time signal
  • Full auto-calendar (to year 2099)
  • 12/24-hour format
  • Button operation tone on/off
  • Regular timekeeping: Hour, minute, second, pm, month, date, day
  • Accuracy: ±15 seconds per month
  • Approx. battery life: 3 years on CR2016
    Size of case : 55×49.7×16.6mm
  • Total weight : 78g

Recent News about GD-400 

All Casio GD-400 News →

You ask, we answer…

What does 200-meter water resistance in GD-400 mean?

The watch is good for swimming but not for deep diving.

What type of battery does GD-400 have?

3 years CR2016.

Does GD-400 have alarm?

Yes, it has 5 daily alarms or one-time alarms.

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