Atomic Timekeeping
Receives time calibration radio signals which keep the displayed time accurate
Auto receive function (4 times per day)
Manual receive function
Signal:  WWVB, Frequency:  60kHz

Tough Solar Power

Shock Resistant

200M Water Resistant

Auto EL Backlight with Afterglow

World Time
29 times zones (30 cities), city code display, daylight saving on/off

4 Daily Alarms & 1 Snooze Alarm

Time Recorder
Memory capacity: 30 records (each record contains month, day, hour, minutes, seconds)

1/100 second stopwatch
Measuring capacity: 23:59'59.99"
Measuring modes: Elapsed time, split time, 1st-2nd place times

Hourly Time Signal

Auto Calendar (pre-programmed until the year 2039)

12/24 Hour Formats

Accuracy: ±15 seconds per month (with no signal calibration)

Storage Battery CTL1616

Battery Power Indicator

Power Saving Function

Approx. battery life: 11 months on full charge (without further exposure to light)

Module 2638

Size of case/total weight
54.8 x 45.0 x 17.0mm / 132g