GST-B400-1A

Basic information Case size (length × width × height) 46.6 × 49.6 × 12.9 mm Weight 80 g Case and frame material Resin / Stainless steel Band Resin band Build Shock resistant Basic protection structure Carbon core guard Water resistance Water resistant up to 200 meters Power source and battery life Tough Solar (solar powered) Watch features World time World time 38 time zones (38 cities + UTC), display city codes, display city names, toggle daylight saving time on/off, automatic DST switching, local city/UTC city switching Stopwatch Precise 1/100 second stopwatch from 00'00''00 to approximately 59'59''99 (first 60 minutes) and from 1:00'00 to approximately 23:59'59 (after 60 minutes) Measurement units 1/100 second (first 60 minutes), 1 second (after 60 minutes) Modes Elapsed time, lap/split time Timer Measurement units 1 second Countdown range 60 minutes Set start time range 1 second to 60 minutes (with 1-second or 1-minute increments) Alarm / Hourly time signal 5 daily alarms Hourly time signal Light Dual LED light, LED backlight for digital display (high-intensity lamp, adjustable lighting duration (1.5 or 3 seconds), fade-in/fade-out) Backlight color White LED Calendar Full automatic calendar (until year 2099) Mute feature Enable/disable button tone Power saving Power saving mode (screen turns off to save power when in dark areas) Display / Battery level alert Battery level indicator Operating time Approximate battery life: 7 months with rechargeable battery (normal usage without light exposure after full charge) 18 months with rechargeable battery (when stored in complete darkness with power saving mode active after full charge) Accuracy Accuracy ±15 seconds per month (without mobile link function)