Shock Resistant
200 Meter Water Resistant
Magnetic Resistant
Auto LED Light with Afterglow
World Time
29 times zones (48 cities + UTC), daylight saving on/off, home city/world time swapping
4 Daily Alarms and 1 Snooze Alarm
Hourly Time Signal
1/1000 Second Stopwatch
Measuring capacity: 99:59'59.999"
Measuring modes: Elapsed time, lap time, split time
Others: Speed (0-1998 units/hour), Selection distance input (0.0-99.9)
Countdown Timer
Measuring unit: 1 second
Countdown range: 24 hours
Countdown start time setting range: 1 minute to 24 hours
(1-minute increments and 1-hour increments)
Other: Auto-repeat
Full auto-calendar (pre-programmed until the year 2099)
12/24 Hour Formats
Accuracy: +/-15 seconds per month
Battery: CR1220
Approx. battery life: 3 years
Module 5255
Size of case/total weight
GA150 55.1 x 52.2 x 16.6mm / 71g
GA150A 55.1 x 52.2 x 16.6mm / 71g
200 Meter Water Resistant
Magnetic Resistant
Auto LED Light with Afterglow
World Time
29 times zones (48 cities + UTC), daylight saving on/off, home city/world time swapping
4 Daily Alarms and 1 Snooze Alarm
Hourly Time Signal
1/1000 Second Stopwatch
Measuring capacity: 99:59'59.999"
Measuring modes: Elapsed time, lap time, split time
Others: Speed (0-1998 units/hour), Selection distance input (0.0-99.9)
Countdown Timer
Measuring unit: 1 second
Countdown range: 24 hours
Countdown start time setting range: 1 minute to 24 hours
(1-minute increments and 1-hour increments)
Other: Auto-repeat
Full auto-calendar (pre-programmed until the year 2099)
12/24 Hour Formats
Accuracy: +/-15 seconds per month
Battery: CR1220
Approx. battery life: 3 years
Module 5255
Size of case/total weight
GA150 55.1 x 52.2 x 16.6mm / 71g
GA150A 55.1 x 52.2 x 16.6mm / 71g