Environmental resistance Low temperature resistant (-20℃)
Power supply and battery life Approx. battery life: 2 years on CR2025
World time 29 time zones (48 cities), daylight saving on/off
Moon data Moon data (moon age of the input data, moon phase graph)
Tide graph Tide graph (tide level for specific date and time)
Stopwatch 1/100-second stopwatch (ST1) Measuring capacity: 999:59'59.99'' Measuring modes: Elapsed time, split time, 1st-2nd place times Other: 5-second countdown auto start 1/100-second stopwatch (ST2) Measuring capacity: 999:59'59.99'' Measuring modes: Elapsed time, split time, 1st-2nd place times
Timer 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) Others: Auto-repeat, progress beeper
Alarm/hourly time signal Hourly time signal 5 multi-function alarms (with 1 snooze alarm)
Flash alert feature Flash alert Flashes with buzzer that sounds for alarms, hourly time signal, countdown timer time up alarm, countdown timer progress beeper, and stopwatch auto start
Light Electro-luminescent backlight Auto light switch, selectable illumination duration (3 seconds or 5 seconds), afterglow
Light color EL:Blue Green
Calendar Full auto-calendar (to year 2099)
Mute feature Button operation tone on/off
Accuracy: ±15 seconds per month
Other features 12/24-hour format Regular timekeeping: Hour, minute, second, pm, month, date, day
