GST-B400-1AER
Regular Price
€319,00
Sale Price
€319,00
Regular Price
€319,00
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Unit Price
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G-SHOCK, the indestructible watch brand, introduces an ultra-thin module model encased in carbon fiber. Strong yet lightweight, the carbon core's protective structure absorbs external shocks and maintains Bluetooth connectivity and solar power functionality even with smaller components and a thinner module. The GST-B400 measures just 12.9 mm from case back to the top of the bezel, making it over a millimeter thinner than its predecessor. Choose from four different styles: the simplicity of a metal strap and silver case; a light silver case paired with a dark resin strap; a red vapor-finished dial paired with a black ion-plated bezel; or a bold blue vapor-finished dial with a black ion-plated bezel and strap.

  • Case dimensions (H x W x D)

    46.6 × 49.6 × 12.9 mm
  • Weight

    80 g
  • Case and bezel material

    Case/Bezel Material: Resin / Stainless Steel
  • Strap

    Resin strap
  • Structure

    Shock resistant
    Carbon Core Guard Structure
  • Waterproof

    Water resistant up to 200 meters
  • Power and battery life

    Tough Solar (Solar-powered)


  • Smartphone connection function

    Mobile Link (wireless connection via Bluetooth®)
  • App

    CASIO WATCHES


  • Glass

    Mineral glass
  • Various

    Neobrite


  • International Time

    World Time 38 time zones (38 cities + Coordinated Universal Time), city code display, city name display, daylight saving time on/off, automatic switching for daylight saving time (DST), switching between Home City and World Time City
  • Stopwatch

    Hundredths of a second stopwatch Measuring range: 00'00''00~59'59''99 (for the first 60 minutes) 1:00'00~23:59'59 (after 60 minutes) Measuring unit: 1 hundredth of a second (for the first 60 minutes) 1 second (after 60 minutes) Measuring mode: Elapsed time, split/lap time
  • Timer

    Countdown Timer Unit of measurement: 1 second Countdown interval: 60 minutes Countdown start time setting range: 1 second to 60 minutes (1-second increments and 1-minute increments)
  • Sound reminder / Time signal

    5 daily sound reminders
    Time signal
  • Light

    Dual LED light for dial (Super Illuminator, selectable illumination duration (1.5 seconds or 3 seconds), luminescence) LED backlight for digital display (Super Illuminator, selectable illumination duration (1.5 seconds or 3 seconds), luminescence)
  • Light color

    LED: White
  • Calendar

    Full automatic calendar (up to the year 2099)
  • Volume mute

    Activation/deactivation of the button press acoustic signal
  • Energy saving function

    Power saving (display turns off to save power when the watch is left in the dark)
  • Battery status display/warning

    Battery level indicator
  • Race timing

    Approximate battery operating time: 7 months with rechargeable battery (operating period for normal use without exposure to light after charging), 18 months with rechargeable battery (operating period when stored in total darkness with the power saving function activated after a full charge)
  • Precision

    Accuracy: ±15 seconds per month (without Mobile Link function)
  • Other features

    12/24 hour format
    Date/Month Display Switching
    Day of the month display (weekdays selectable in six languages)
    Hand movement function (the hands move so as not to block the view of the digital display contents).
    Regular timekeeping: Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (battery level, mode) Digital: hour, minute, second, pm, month, date, day

Size Guide

CUT CM*
S 16
M 17
THE 18
XL 19
XXL 20
3XL 21

*LENGTH IN CM OF THE BRACELETS WITH TOLERANCES OF 0.5 CM

Contact Us:
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