Receive successful Reception date
Receive failed
If there was a previously successful reception

Operation Guide 3159

Proper signal reception can be difficult or even impossible under the conditions listed below.

Inside or

Inside a

Near

Near a

Near high-

Among or

among

vehicle

household

construction

tension power

behind

buildings

 

appliances,

site, airport,

lines

mountains

 

 

office

or other

 

 

 

 

equipment,

sources of

 

 

 

 

or a mobile

electrical

 

 

 

 

phone

noise

 

 

Signal reception normally is better at night than during the day.

Time calibration signal reception takes from two to seven minutes, but in some cases it can take as long as 14 minutes. Take care that you do not perform any button operations or move the watch during this time.

The time calibration signal the watch will attempt to pick up depends on its current Home City code setting as shown below.

Home City Code

Transmitter

Frequency

LIS, LON, MAD, PAR, ROM,

Anthorn (England)

60.0 kHz

BER, STO, ATH, MOW*

Mainflingen (Germany)

77.5 kHz

HKG, BJS

Shangqiu City (China)

68.5 kHz

TPE, SEL, TYO

Fukushima (Japan)

40.0 kHz

Fukuoka/Saga (Japan)

60.0 kHz

 

HNL*, ANC*, YVR, LAX, YEA,

Fort Collins, Colorado

60.0 kHz

DEN, MEX, CHI, MIA, YTO,

(the United States)

 

NYC, YHZ, YYT

 

 

*The areas covered by the HNL, ANC, and MOW city codes are quite far from the time calibration signal transmitters, and so certain conditions may cause problems with signal reception.

Calibration signal reception is disabled while a countdown timer operation is in progress.

Approximate Reception Ranges

U.K. and German Signals

1,500 kilometers

Mainflingen

Anthorn

500 kilometers

North American Signal

About Auto Receive

The watch receives the time calibration signal automatically up to six times a day (five times a day for the Chinese calibration signal). When any auto receive is successful, the remaining auto receive operations are not performed. The reception schedule (calibration times) depends on your currently selected Home City, and whether standard time or Daylight Saving Time is selected for your Home City.

 

Your Home City

 

Auto Receive Start Times

 

 

 

1

2

3

4

5

6

LIS

Standard Time

1:00 am

2:00 am

3:00 am

4:00 am

5:00 am

Midnight*

LON

Daylight Saving Time

2:00 am

3:00 am

4:00 am

5:00 am

Midnight*

1:00 am*

MAD

Standard Time

2:00 am

3:00 am

4:00 am

5:00 am

Midnight*

1:00 am*

PAR

Daylight Saving Time

3:00 am

4:00 am

5:00 am

Midnight*

1:00 am*

2:00 am*

ROM

 

 

 

 

 

 

 

BER

 

 

 

 

 

 

 

STO

 

 

 

 

 

 

 

ATH

Standard Time

3:00 am

4:00 am

5:00 am

Midnight*

1:00 am*

2:00 am*

 

Daylight Saving Time

4:00 am

5:00 am

Midnight*

1:00 am*

2:00 am*

3:00 am*

MOW

Standard Time

4:00 am

5:00 am

Midnight*

1:00 am*

2:00 am*

3:00 am*

 

Daylight Saving Time

5:00 am

Midnight*

1:00 am*

2:00 am*

3:00 am*

4:00 am*

HKG

Standard Time and

1:00 am

2:00 am

3:00 am

4:00 am

5:00 am

 

BJS

Daylight Saving Time

 

 

 

 

 

 

TPE

Standard Time

Midnight

1:00 am

2:00 am

3:00 am

4:00 am

5:00 am

SEL

 

 

 

 

 

 

 

TYO

 

 

 

 

 

 

 

HNL

Standard Time and

Midnight

1:00 am

2:00 am

3:00 am

4:00 am

5:00 am

ANC

Daylight Saving Time

 

 

 

 

 

 

YVR

 

 

 

 

 

 

 

LAX

 

 

 

 

 

 

 

YEA

 

 

 

 

 

 

 

DEN

 

 

 

 

 

 

 

MEX

 

 

 

 

 

 

 

CHI

 

 

 

 

 

 

 

MIA

 

 

 

 

 

 

 

YTO

 

 

 

 

 

 

 

NYC

 

 

 

 

 

 

 

YHZ

 

 

 

 

 

 

 

YYT

 

 

 

 

 

 

 

Note

 

 

 

 

 

 

*Next day

 

 

 

 

 

 

 

When a calibration time is reached, the watch will receive the calibration signal only

if it is in either the Timekeeping Mode or World Time Mode. Reception is not

performed if a calibration time is reached while you are configuring settings.

Auto receive of the calibration signal is designed to be performed early in the

morning, while you sleep (provided that the Timekeeping Mode time is set correctly).

Before going to bed for the night, remove the watch from your wrist, and put it in a

location where it can receive the signal easily.

The watch receives the calibration signal for two to seven minutes everyday when

the time in the Timekeeping Mode reaches a calibration time. Do not perform any

button operation within seven minutes before or after the calibration times. Doing so

can interfere with correct calibration.

Remember that reception of the calibration signal depends on the current time in the

Timekeeping Mode. The receive operation will be performed whenever the display

shows any one of the calibration times, regardless of whether or not the displayed

The Anthorn signal is receivable within this area.

2,000 miles

(3,000 kilometers)

600 miles

(1,000 kilometers)

Fort Collins

time actually is the correct time.

About the Signal Strength Indicator

The signal strength indicator shows the strength of the calibration signal being received. For best reception, be sure to keep the watch in a location where signal strength is strongest. The signal strength indicator is displayed while an auto or manual receive operation is in progress.

Japan Signals

RCVD indicator

 

ll ll

l

l

500 kilometers

500 kilometers

l

l

 

l

 

ll ll

Fukuoka/Saga

Fukushima

1,000 kilometers

 

 

l

 

l l

l

 

l

l

 

 

l

l

 

l

 

ll

1,000 kilometers

Signals are receivable in the Taiwan area when reception conditions are good.

China Signal

1,500 kilometers

Changchun

500 kilometers

Beijing

Chengdu

Shanghai

 

Shangqiu

Hong Kong

 

Signal reception may not be possible at the distances noted below during certain times of the year or day. Radio interference also may cause problems with reception.

Mainflingen (Germany) or Anthorn (England) transmitters: 500 kilometers (310 miles)

Fort Collins (United States) transmitter: 600 miles (1,000 kilometers)

Fukushima or Fukuoka/Saga (Japan) transmitters: 500 kilometers (310 miles)

Shangqiu (China) transmitter: 1,500 kilometers (910 miles)

Even when the watch is within the reception range of the transmitter, signal reception will be impossible if the signal is blocked by mountains or other geological formations between the watch and signal source.

Signal reception is affected by weather, atmospheric conditions, and seasonal changes.

See the information under “Signal Reception Troubleshooting” if you experience problems with time calibration signal reception.

Weak

Strong

Signal strength indicator

 

Even in an area where signal strength is strong, it takes about 10 seconds for signal reception to stabilize enough for the signal strength indicator to indicate signal strength.

Use the signal strength indicator as a guide for checking signal strength and for finding the best location for the watch during signal receive operations.

Following reception of the time calibration signal and calibration of the watch’s time setting, the RCVD indicator will remain on the display in all modes. The RCVD indicator will not be displayed if signal reception was unsuccessful or after you adjust the current time setting manually.

The RCVD indicator is displayed only when the watch is able to receive both time and date data successfully. It does not appear when only time data is received.

The RCVD indicator indicates that at least one of the auto calibration signal receive operations was successful. Note, however, that the RCVD indicator disappears from the display each day when the first auto receive operation of the day is performed.

To perform manual receive

Receiving

1. Enter the Timekeeping Mode.

ll ll

2. Hold down Dfor about two seconds until the RCVD

l

 

l

indicator starts to flash on the display. This indicates

l

 

 

 

l

 

l

l l

ll

that manual receive is in progress.

 

 

Time calibration signal reception takes from two to

 

l

 

l

 

seven minutes. Take care that you do not perform

l

l l

 

 

l

l

any button operations or move the watch during this

 

ll l

 

l

 

 

time.

If the receive operation is successful, the reception date and time appear on the display, along with the GET indicator.

3.After manual receive is complete, press Dto return to normal timekeeping.

The watch also will return to normal timekeeping if you do not perform any button operation for about one or two minutes.

If the latest reception fails but a previous reception was successful during the current day, the RCVD indicator

will be on the display.

Note

To interrupt a receive operation and return to normal timekeeping, press D.

2