Shock resistant
200M Water Resistant
EL Backlight with Afterglow
Flash Alert
Flashes with buzzer that sounds for alarms, hourly time signal
countdown timer, progress beeper and stopwatch auto-start
World Time
29 time zones (48 cities), city code display, daylight saving on/off
2 Multi-function Alarms and 1 Snooze Alarm
Hourly Time Signal
1/100 second stopwatch
Measuring capacity: 23:59'59.99"
Measuring modes: Elapsed time, split time, 1st-2nd place times
Other: 5-second auto-start
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, Progress beeper on/off
Full Auto Calendar (pre-programmed until the year 2099)
12/24 Hour Formats
Button Operation Tone on/off
Accuracy: +/- 15 seconds per month
Battery: CR2016
Approx. battery life: 5 years
Module 3436
Size of case/total weight
GMDS6900 48.8 x 46.0 x 12.7mm / 48g