Accuracy at normal temperature:
±15 seconds per month average when time adjustment by time calibration signal reception or by communication with a phone is not possible.
Hour, minute, second, year, month, day, day of the week
Full Auto Calendar (2000 to 2099) *
* Year display on setting screen only.
Signal Receive Functions:
Auto receive, manual receive
Auto summer time switching
Auto transmitter selection (for JJY, MSF/DCF77)
Receivable call signs:
JJY (40 kHz/60 kHz), WWVB (60 kHz), MSF (60 kHz), DCF77 (77.5 kHz), BPC (68.5 kHz)
OFF: Signal receive disabled
Displays current time in 39 cities (39 time zones) and for UTC, auto summer time setting
Home City/World Time City swapping
Measurement unit: 1/100 seconds (first hour); 1 second (after first hour)
Measurement range: 23 hours, 59 minutes, 59 seconds (24 hours)
Measurement functions: Elapsed time, split time, two finishes
Alarms: 5 (with one snooze alarm)
Setting units: Hours, minutes
Beeper: 10 seconds
Hourly time signal
Beeps every hour on the hour
Measuring unit: 1 second
Countdown range: 24 hours
Setting unit: 1 second
Time up: 10-second beeper
Auto Time Adjustment
Time setting adjusted automatically at preset time.
One-touch Time Correction
Manual connection and time adjustment
Watch operation sounds the alert sound of the mobile phone.
Current time for approximately 300 cities selected for the watch
Home Time/World Time swapping
Original city function (location and name settings)
Auto Summer Time Switching
Automatic switching between standard time and summer time.
Reminds you of anniversaries and other important dates.
Data Communication Specifications
Frequency Band: 2400MHz to 2480MHz
Maximum Transmission: 0 dBm (1 mW)
Communication range: Up to 2 meters (depends on environment)
LED light, light duration setting, Full Auto Light, Power Saving, Button operation tone on/off, Month/day order, Day of the week language, Auto time adjustment on/off
Solar panel and one rechargeable battery
Battery operating time: Approximately 10 months
Not exposed to light under the conditions below.
Auto time adjustment: 4 times/day
Alarm: Once (10 seconds)/day
Illumination: Once (2 seconds)/day
Power Saving: 6 hours/day
Specifications are subject to change without notice.