Description

Make a statement in colour with the slimmest* G-STEEL timepieces yet. Fresh new colours and a slim module encased in carbon fibre come together in the smart and stylish GST-B400 line.
*as of Oct 2021
Specifications
Case / bezel material: Resin / Stainless steel
Solid Band
One-touch 3-fold Clasp
Stainless Steel Band
Mineral Glass
Neobrite
Shock Resistant
Carbon Core Guard structure
Green ion plated bezel
200-meter water resistance
Tough Solar (Solar powered)
Double LED light
LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds),afterglow)
Mobile link (Wireless linking using Bluetooth®）
Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents)
World time
38 time zones (38 cities + coordinated universal time), city code display, city name display, daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping
1/100-second stopwatch
Measuring capacity: 00’00”00~59’59”99 (for the first 60 minutes)
1:00’00~23:59’59 (after 60 minutes)
Measuring unit: 1/100 second (for the first 60 minutes)
1 second (after 60 minutes)
Measuring modes: Elapsed time, lap/split time
Countdown timer
Measuring unit: 1 second
Countdown range: 60 minutes
Countdown start time setting range: 1 second to 60 minutes (1-second increments and 1-minute increments)
5 daily alarms
Hourly time signal
Battery level indicator
Power Saving (display goes blank to save power when the watch is left in the dark)
Full auto-calendar (to year 2099)
12/24-hour format
Button operation tone on/off
Date/month display swapping
Day display (days of the week selectable in six languages)
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
Accuracy: ±15 seconds per month (with no mobile link function)
Approx. battery operating time:
7 months on rechargeable battery (operation period with normal use without exposure to light after charge)
18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)

Size of case / Total weight
Size of case : 46.6×49.6×12.9mm
Total weight : 160g