Module No. 5544


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, day (2000 to 2099 full auto calendar), day of the week

World Time:

Current time in 27 cities (39 time zones), and UTC (Coordinated Universal Time) time

Auto summer time setting

Home Time swapping

Signal Receive Functions:

Time calibration: Auto Receive, manual receive

Auto transmitter selection (for JJY, MSF/DCF77)

Receivable Call Signs:

JJY (40kHz/60kHz), BPC (68.5kHz), WWVB (60kHz), MSF (60kHz), DCF77 (77.5kHz)

Last reception result display

Automatic and manual switching between standard time and summer time.

Mobile Link:

Auto Time Correction

Time setting adjusted automatically at preset time

One-touch Time Correction

Manual connection and time adjustment

Phone finder

Watch operation sounds the alert sound of the phone.

Home Time swapping

Auto summer time setting

Automatic switching between standard time and summer time

Hand alignment correction

Data Communication Specifications


Frequency Band: 2400MHz to 2480MHz

Maximum Transmission: 0 dBm (1 mW)

Communication range: Up to 2 meters (depends on environment)


Measuring unit: 1 second

Measuring capacity: 23:59’59” (24 hours)

Measurement function: Elapsed time


Setting unit: 1 minute

Countdown range: 24 hours

Measuring unit: 1 second

10-second beeper when the end of the countdown is reached


Setting units: Hours, minutes

Beeper: 10 seconds


LED light, auto hand position correction, Power Saving, battery indicator

Power Supply:

Solar panel and one rechargeable battery

Approximate Battery Life:

Approximately 5 months


Auto adjust: 4 times/day

Light: 1 operation/day

Alarm: 1 operation/day

Power Saving: 6 hours/day

Specifications are subject to change without notice.