7 to 8 o’clock

Operation Guide 5196/5252/5301

Charging Times

 

Daily

 

 

 

Level Change *2

 

 

 

Exposure Level (Brightness)

Operation

 

 

Level 4

Level 3

Level 2

 

Level 1

 

*1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Outdoor sunlight (50,000 lux)

8 minutes

 

 

 

2 hours

 

25 hours

Window sunlight (10,000 lux)

30 minutes

 

 

 

4 hours

 

93 hours

 

 

 

 

 

 

 

 

 

 

 

Window sunlight on cloudy day

48 minutes

 

 

 

6 hours

151 hours

(5,000 lux)

 

 

 

 

 

 

 

 

 

 

 

 

 

Indoor fluorescent lighting

8 hours

 

 

 

59 hours

 

– – –

(500 lux)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*1 Approximate exposure each day to generate power for normal daily operation.

*2 Approximate exposure to take power up one level.

ξThe above times are for reference only. Actual times depend on lighting conditions.

ξFor details about the operating time and daily operating conditions, see the “Power Supply” section of the Specifications (page E-54).

Power Saving

A Power Saving feature causes the watch to enter a sleep state automatically whenever it is left for a certain period in an area where it is dark.

How Power Saving works

The watch will enter the sleep state if it is left in a dark location for about one week.

ξIn the sleep state:

−All hands stop at 12 o’clock.

−Auto Receive is disabled.

−Internal timekeeping continues to operate normally.

ξThe watch will not enter a sleep state between 6:00 AM and 9:59 PM. If the watch is already in a sleep state when 6:00 AM arrives, however, it will remain in the sleep state.

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To recover from the sleep state

Move the watch to a well-lit area, press the Abutton, or pull out the crown to the Þ rst click.

ξIt can take up to eight minutes for the watch to resume normal operation after recovering from the sleep state. Do not perform any button operations during that time.

Radio Controlled Atomic Timekeeping

This watch receives a time calibration signal and updates its time setting accordingly. However, when using the watch outside of areas covered by time calibration signals, you will have to adjust the settings manually as required. See ÒConÞ guring Time and Date Settings ManuallyÓ (page E-35) for more information.

This section explains how the watch updates its time settings when the city name selected as the current location is in Japan or China, and is one that supports time calibration signal reception.

If your location setting is this:

The watch can receive the signal from the transmitter

located here:

 

CN (HKG, HONG KONG)

Shangqiu City (China)

JP (TYO, TOKYO)

Fukushima (Japan), Fukuoka/Saga (Japan)

OFF

No signal received

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Approximate Reception Ranges

Japanese Signal

Chinese Signal

500 kilometers Fukushima

500 kilometers

Changchun

 

 

 

Beijing

 

 

 

Shangqiu

 

 

 

Shanghai

 

 

 

Chengdu

 

 

 

Hong Kong

Fukuoka/Saga

1,000 kilometers

1,500 kilometers

 

 

 

 

 

ξEven when the watch is within range of a transmitter, signal reception may be impossible due to the effects of geographic contours, structures, weather, the time of year, the time of day, radio interference, etc. The signal becomes weaker at distances of approximately 500 kilometers, which means that the influence of the above conditions becomes even greater.

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

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

−Shangqiu (China) transmitter: 500 kilometers (310 miles)

ξAs of December 2010, China does not use Daylight Saving Time (DST). If China does go to the Daylight Saving Time system in the future, some functions of this watch may no longer operate correctly.

ξUsing this watch in a country covered by a time calibration that is different from the countries it supports may result in incorrect time indication due to local application of summer time, etc.

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To get ready for a receive operation

1.Place the watch in a location where signal reception is good.

ξPosition the watch as shown in the nearby illustration, with the part of the dial between 7 and 8 o’clock pointed towards a window. Make sure there are no metal objects nearby.

ξSignal reception normally is better at night.

ξ The receive operation takes from three to eight minutes, but in some cases it can take as long as 18 minutes. Take care that you do not perform any button operation or move the watch during this time.

ξSignal reception may be difficult or even impossible under the conditions described below.

Inside or

Inside a

Near

Near a

Near

Among

among

vehicle

household

construction

high-tension

or behind

buildings

 

appliances,

site, airport,

power lines

mountains

 

 

office

or other

 

 

 

 

equipment,

sources of

 

 

 

 

or a mobile

electrical

 

 

 

 

phone

noise

 

 

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2.What you should do next depends on whether you are using Auto Receive or Manual Receive.

ξAuto Receive: Leave the watch over night in the location you selected in step 1. See “Auto Receive” below for details.

ξManual Receive: Perform the operation under “To perform manual receive” on page E-29.

Auto Receive

ξWith Auto Receive, the watch performs the receive operation each day automatically. Reception times depend on the location settings: 2:00, 3:00, and 4:00 a.m. for JP (TYO, TOKYO), and 1:00, 2:00, and 3:00 a.m. for CN (HKG, HONG KONG). When any receive operation is successful, none of the other receive operations for that day are performed.

ξWhen a calibration time is reached, the watch will perform the receive operation. The receive operation is not performed if a calibration time is reached while you are configuring settings.

To perform manual receive

1. Hold down Afor at least two seconds.

ξThe x Second Hand will first indicate the last receive

results as either Y (YES) or N (NO), and then move to RC (Receive in progress) to indicate that signal reception has started.

2. The watchÕs time setting is adjusted automatically whenever a receive operation is successful.

Note

ξ It can take as long as 30 seconds for signal reception conditions to stabilize.

ξIf you want to stop a receive operation at any time, press A.

ξIf reception fails for some reason, check the surrounding area and eliminate possible causes for failure and then try again. See “To get ready for a receive operation” (page E-26).

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