GBD-100SM-4A1

Battery Life / Accuracy
Approximately 2 years (+/-15 seconds per month)

Crystal
Mineral crystal

Light
LED backlight (super illuminator, auto light switch, selectable illumination duration, afterglow)

Case & Band Material
Resin / aluminium case with resin band

Water Resistance
200m

Case Size
Thickness: 17.0 mm
Diameter: 49.3 mm
Length: 58.2 mm

Other Specifications
Shock resistant
Training function (distance, speed, pace and other calculated values based on accelerometer)
Mobile link (wireless linking via Bluetooth)
World time (38 time zones)
1-second stopwatch
Countdown timer
4 daily alarms with snooze
Full auto-calendar (to year 2099)
Button operation tone on/off
Power saving (display goes blank to save power 3 hours everyday)
12/24-hour format
Flight mode
Regular timekeeping (digital display)
Vibration on/off
Life log data (daily step count, monthly running distance display)
Training data (up to 100 runs, up to 140 laps per run)
Elapsed time, distance, pace, calories burned