​​Watch Features
World time
World time 29 time zones (29 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping
Stopwatch
1/100-second stopwatch Measuring capacity: 23:59'59.99'' Measuring modes: Elapsed time, split time, 1st-2nd place times
Timer
Countdown timer Measuring unit: 1 minute Countdown range: 60 minutes Countdown start time setting range: 1 second to 60 minutes (1-minute increments)
Alarm/hourly time signal
5 daily alarms
Hourly time signal
Light
Double LED light LED light for the face (Full auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) LED backlight for the digital display (Full auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
Light color
LED:White
Calendar
Full auto-calendar (to year 2099)
Mute feature
Button operation tone on/off
Hand home position correction feature
The auto hand home position correction
Energy saving feature
Power Saving (display goes blank and hands stop to save power when the watch is left in the dark)
Battery display/alert
Battery level indicator
Run time
Approx. battery operating time: 6 months on rechargeable battery (operation period with normal use without exposure to light after charge) 25 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
Accuracy
Accuracy: ±15 seconds per month (with no signal calibration)
Other features
Hand shift feature (manual or auto (during altitude, barometric pressure, and temperature measurement))
12/24-hour format
Regular timekeeping: Analog: 3 hands (hour, minute (hand moves every 10 seconds), second) Digital: Hour, minute, second, am/pm, month, date, day
Time adjustment details
Time calibration signal reception Auto receive up to six* times a day (remaining auto receives canceled as soon as one is successful) *5 times a day for the Chinese calibration signal Manual receive The latest signal reception results
Time Calibration Signals Station name: DCF77 (Mainflingen, Germany) Frequency: 77.5 kHz Station name: MSF (Anthorn, England) Frequency: 60.0 kHz Station name: WWVB (Fort Collins, United States) Frequency: 60.0 kHz Station name: JJY (Fukushima, Fukuoka/Saga, Japan) Frequency: 40.0 kHz (Fukushima) / 60.0 kHz (Fukuoka/Saga) Station name: BPC (Shangqiu City, Henan Province, China) Frequency: 68.5 kHz