- 200M Water Resistant
- Shock Resistant
- Auto LED Backlight (Super Illuminator)
- Multi-time (4 different cities)
- World Time
31 time zones (48 cities UTC), city code display, daylight saving on/off - 5 Independent Alarms (one-time or daily)
- Hourly Time Signal
- Flash alert
Flasher with buzzer that sounds for alarms, hourly time signal, countdown timer time-up alarm, countdown timer progress beeper - 1/100 second stopwatch
Measuring capacity: 23:59’59.99”
Measuring modes: Elapsed time, split time, 1st-2nd place times - Countdown timer
Measuring unit: 1/10 second
Countdown range: 24 hours
Countdown start time setting range: 1 minute to 24 hours (1-second increments, 1-minute increments and 1-hour increments)
Other: progress beeper - Full Auto Calendar (pre-programmed until the year 2099)
- 12/24 Hour Formats
- Button operation tone on/off
- Accuracy: /-15 seconds per month
- Battery: CR2025
- Approx. battery life: 7 years
- Module 3263
Size of case/total weight
GD100 55.0 x 51.2 x 17.4mm / 72g
