Casio GBD-300-9 Introducing the GBD-300 line for your active everyday — the tough, sports-oriented G-SQUAD designed to make training fun.
Casio GBD-300-9 G-Shock Men’s Watch Features:
Construction: Shock Resistant
Water resistance: 200-meter water resistance
Time adjustment: Bluetooth: Connects to a smartphone and automatically adjusts the time
Power supply and battery life: Approx. battery life: 2 years
World time: 38 time zones (38 cities + coordinated universal time), daylight saving on/off, auto summer time (DST) switching
Stopwatch: 1-second stopwatch
Timer: Countdown timer
Alarm/hourly time signal: 4 daily alarms with snooze
Light: LED backlight (Super Illuminator)
Light color: LED:White
Calendar: Full auto-calendar (to year 2099)
Mute feature: Button operation tone on/off
Energy saving feature
Power Saving (Display goes blank to save power 3 hours everyday.)
Accuracy: ±15 seconds per month (with no mobile link function)
Other features
12/24-hour format
Flight mode
Regular timekeeping:
Hour, minute, second, am/pm, month, date, day
User profile creation
Vibration on/off
Sensor feature details
Life Log Data
Daily data display (step count), Monthly data display (running distance)
Training Data (Up to 100 runs, up to 140 lap times per run)
Elapsed time, distance, pace, calories burned


