Add a splash of color with the thinnest* G-STEEL watches ever. New colors and a slim carbon fiber-covered module join the sleek and stylish GST-B400 lineup.
Technical data
Basic information
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Housing dimensions (H x W x D)
46,6 × 49,6 × 12,9 mm -
Libra
160 gr -
Housing and frame material
resin/stainless steel -
Belt
Stainless Steel Strap
Durable Strap
3-Fold One-Touch ClosureStruktura -
Impact resistant
Carbon Core Guard structure -
Waterproof
Water resistant to 200 meters -
Battery power and life
Tough Solar (solar powered)
Smartphone and app connection function
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Smartphone connection function
Mobile Link (wireless connection via Bluetooth®) -
App
CASIO WATCHES
External
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Glass
A glass of mineral water -
Surface treatment
Green ion plated bezel-
Miscellaneous
Unshaven
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Watch functions
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Time in the world
World time 38 time zones (38 cities + Coordinated Universal Time), city code display, city name display, daylight saving time on/off, automatic daylight saving time (DST) switching, city time change in city according to world time-
Stopper
Stopwatch 1/100 second Measuring capacity: 00'00''00~59'59''99 (for the first 60 minutes) 1:00'00~23:59'59 (after 60 minutes) Unit of measurement: 1 hundredth of a second (for the first 60 minutes) 1 second (after 60 minutes) Measuring mode: elapsed time, split time
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Timer
Countdown timer Unit: 1 second Countdown interval: 60 minutes Countdown start time setting range: 1 second to 60 minutes (in 1 second and 1 minute increments) -
Sound reminder/time signal
5 daily audio remindersTime signal-
Light
Dual LED dial lighting (Super Illuminator, selectable lighting time (1.5 seconds or 3 seconds), luminescence) Digital display LED backlight (Super Illuminator, selectable lighting time (1.5 seconds or 3 seconds), luminescence) -
Light color
Diode: white -
Calendar
Fully automatic calendar (up to 2099) -
Volume mute
Turn on/off the sound signal when pressing a button -
Power saving function
Power saving (display turns off to save power when watch is in darkness) -
Battery status display/warning
Battery level indicator -
Race time
Approximate battery life: 7 months battery life (battery life under normal use without exposure to light after charging), 18 months battery life (battery life when stored in complete darkness with power saving function activated after full charge) -
Precision
Accuracy: ±15 seconds per month (without Mobile Link function) -
Other Features
12/24-hour formatDate/month display switchingDay of the month display (six languages selectable)Hand movement function (hands move so as not to block the digital display).Regular timekeeping: Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (battery level, mode) Digital: hour, minute, second, noon, month, date, day
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