Module No. 5658


Accuracy at normal temperature:

±15 seconds per month average when time adjustment by communication with a phone is not possible.



Hour, minute (moves every 20 seconds)


Hour, minute, second, month, day, day of the week

a.m./p.m.(P)/24-hour timekeeping

Full Auto Calendar (2000 to 2099)

Summer Time

World Time:

38 cities (38 time zones) and Coordinated Universal Time (UTC)

Summer time

Home Time swapping


Measurement unit:

1/100 seconds (first hour)

1 second (after first hour)

Measuring range: 23 hours 59 minutes 59 seconds

Measurement Functions:

Elapsed time, split times, lap times


Measuring unit: 1 second

Measuring range: 60 minutes

Time setting unit: 1 second

Time setting range: 1 second to 60 minutes

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

Countdown start tone


Time alarm

Number of alarms

5 (with countdown start tone)

Setting units

Hours, minutes

Alarm tone duration: 10 seconds

Hourly time signal: Beep every hour on the hour

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 mobile phone

World Time

Current time for approximately 300 cities selected for the watch

Home Time/World Time swapping

Auto Summer Time Switching

Automatic switching between standard time and summer time

Timer Settings

Alarm Settings

Stopwatch data transfer

1/1000-second Stopwatch:
200 lap/split time records (date and time, lap/split time, lap number)

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)

Double LED light:

Face LED light: Super Illuminator, afterglow, selectable illumination duration (approximately 1.5 seconds or 3 seconds)

LCD LED backlight: Super Illuminator, afterglow, selectable illumination duration (approximately 1.5 seconds or 3 seconds)


Power Saving, battery Indicator, selectable day of the week language, auto time adjustment on/off, operation tone on/off, Hand Shift, countdown start tone on/off

Power Supply:

Solar panel and one rechargeable battery

Battery operating time: Approximately 7 months


Auto Time Adjustment: 4 times/day

Alarm: Once (10 seconds)/day

Illumination: Once (1.5 seconds)/day

Power Saving: 6 hours/day

Specifications are subject to change without notice.