Shock resistant (G-SHOCK)
200 meter water resistant
Electro-luminescent backlight Afterglow
Flash alert Flashes with buzzer that sounds for alarms, hourly time signal
1/100-second stopwatch Measuring capacity: 00’00″00~59’59″99 (for the first 60 minutes) 1:00’00~23:59’59 (after 60 minutes) Measuring unit: 1/100 second (for the first 60 minutes) 1 second (after 60 minutes) Measuring modes: Elapsaed time, split time, 1st-2nd place times
Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments) Other: Auto-repeat
Multi-function alarm
Hourly time signal
Full auto-calendar (to year 2099)
12/24-hour format Regular timekeeping: Hour, minute, second, pm, month, date, day
Accuracy: ±15 seconds per month
Approx. battery life: 2 years on CR2016
Module: 3230
Size of case / total weight
GM-6900 ………….53.9 x 49.7 x 18.6 mm / 96 g