±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

Hour, minute, 24-hour

27 time zones

Auto summer time setting

Home City/World Time City swapping

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)

OFF: Signal receive disabled

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.

World Time

Current time for a selection of approximately 300 cities
Home Time/World Time swapping

Auto summer time setting

Automatic switching between standard time and summer time

Timer Settings

Alarm Settings

Hand alignment correction

Data Communication Specifications

Bluetooth^®

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 Functions:

Normal elapsed time measurement, flyback timing, direct start

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 (Super Illuminator, afterglow), Power Saving, battery level indicator, auto hand position correction

Solar panel and one rechargeable battery

Approximately 5 months

Conditions

Not exposed to light under the conditions below.
Auto Time Adjustment: 4 times/day
Light: 1 operation/day
Alarm: Once (10 seconds)/day
Power Saving: 6 hours/day