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Operation Guide 3217 3275

E-60

Important!

Storing the watch for long periods in an area where there is no light or wearing it in
such a way that it is blocked from exposure to light can cause rechargeable battery
power to run down. Be sure that the watch is exposed to bright light whenever
possible.

This watch uses a rechargeable battery to store power produced by the solar cell, so
regular battery replacement is not required. However, after very long use, the
rechargeable battery may lose its ability to achieve a full charge. If you experience
problems getting the rechargeable battery to charge fully, contact your dealer or
CASIO distributor about having it replaced.

Never try to remove or replace the watch’s rechargeable battery yourself. Use of the
wrong type of battery can damage the watch.

All data stored in memory is deleted, and the current time and all other settings
return to their initial factory defaults whenever battery power drops to Level 5 (pages
E-61 and E-62) and when you have the battery replaced.

Turn on the watch’s Power Saving function (page E-83) and keep it in an area
normally exposed to bright light when storing it for long periods. This helps to keep
the rechargeable battery from going dead.

E-61

Level

1

2

3

4

5

Battery Power Indicator

(Charge Soon Alert)

Function Status

All functions enabled.

All functions enabled.

Auto and manual receive,
illumination, and beeper
disabled.

Except for timekeeping and
the

CHG

 (charge) indicator,

all functions and display
indicators disabled.
All functions disabled.

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Battery Power Indicator and Recover Indicator

The battery power indicator on the display shows you the current status of the
rechargeable battery’s power.

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Battery power
indicator

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E-62

The flashing 

LOW

 indicator at Level 3 tells you that battery power is very low, and

that exposure to bright light for charging is required as soon as possible.

At Level 5, all functions are disabled and settings return to their initial factory
defaults. Once the battery reaches Level 2 after falling to Level 5, reconfigure the
current time, date, and other settings.

The watch’s Home City code setting will change automatically to 

TYO

 (Tokyo)

whenever the battery drops to Level 5. With this Home City code setting, the watch is
configured to receive the time calibration signals of Japan. If you are using the watch
in North America or Europe, or China you will need to change the Home City code
setting to match your location whenever the battery drops to Level 5.

Display indicators reappear as soon as the battery is charged from Level 5 to Level 2.

Leaving the watch exposed to direct sunlight or some other very strong light source
can cause the battery power indicator to show a reading temporarily that is higher
than the actual battery level. The correct battery level should be indicated after a few
minutes.

E-63

Performing illumination, or beeper operations during a
short period may cause 

(recover) to appear on

the display.
After some time, battery power will recover and 
(recover) will disappear, indicating that the above
functions are enabled again.

If

(recover) appears frequently, it probably means

that remaining battery power is low. Leave the watch in
bright light to allow it to charge.

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Recover indicator

E-64

Charging Precautions

Certain charging conditions can cause the watch to become very hot. Avoid leaving
the watch in the areas described below whenever charging its rechargeable battery.
Also note that allowing the watch to become very hot can cause its liquid crystal
display to black out. The appearance of the LCD should become normal again when
the watch returns to a lower temperature.

Warning!
Leaving the watch in bright light to charge its rechargeable battery can cause it
to become quite hot. Take care when handling the watch to avoid burn injury.
The watch can become particularly hot when exposed to the following
conditions for long periods.

On the dashboard of a car parked in direct sunlight

Too close to an incandescent lamp

Under direct sunlight

E-65

Exposure Level (Brightness)

Outdoor Sunlight (50,000 lux)
Sunlight Through a Window (10,000 lux)
Daylight Through a Window on a Cloudy Day (5,000 lux)
Indoor Fluorescent Lighting (500 lux)

Approximate

Exposure Time

5 minutes
24 minutes
48 minutes
8 hours

Charging Guide

The following table shows the amount of time the watch needs to be exposed to light
each day in order to generate enough power for normal daily operations.

For details about the battery operating time and daily operating conditions, see the
“Power Supply” section of the Specifications (page E-93).

Stable operation is promoted by frequent exposure to light.

E-66

Recovery Times

The table below shows the amount exposure that is required to take the battery from
one level to the next.

Approximate Exposure Time

Level 5

Level 4

Level 3

Level 2

Level 1

2 hours

18 hours

5 hours

7 hours

88 hours

24 hours

13 hours

180 hours

48 hours

153 hours

- - - - - - - -

- - - - - - - -

Exposure Level
(Brightness)

Outdoor Sunlight
(50,000 lux)
Sunlight Through a
Window (10,000 lux)
Daylight Through a
Window on a Cloudy
Day (5,000 lux)
Indoor Fluorescent
Lighting (500 lux)

The above exposure time values are all for reference only. Actual required exposure
times depend on lighting conditions.

E-67

Timekeeping

Press the 

A

 button to toggle the upper display between the day of the week and

date, and the currently selected World Time city and time (Dual Time).
Use the Timekeeping Mode to set and view the current time and date.

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Current Time

Day of week

Dual Time

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Dual time

City code

Month – Day

PM indicator

Hour : Minutes
Seconds

A

E-68

Read This Before You Set the Time and Date!

This watch is preset with a number of city codes, each of which represents the time
zone where that city is located. When setting the time, it is important that you first
select the correct city code for your Home City (the city where you normally use the
watch). If your location is not included in the preset city codes, select the preset city
code that is in the same time zone as your location.

Note that all of the times for the World Time Mode city codes (page E-42) are
displayed in accordance with the time and date settings you configure in the
Timekeeping Mode.

To set the time and date manually

1. In the Timekeeping Mode, hold down 

A

 until the city

code starts to flash, which indicates the setting screen.

2. Use 

D

 and 

B

 to select the city code you want.

Make sure you select your Home City code before
changing any other setting.

For full information on city codes, see the “City Code
Table” at the back of this manual.

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E-69

3. Press 

C

 to move the flashing in the sequence shown below to select the other

settings.

Seconds

12/24-Hour

Format

Hour

Minutes

DST

Month

Year

City Code

Day

Power Saving

Illumination

Duration

Button

Operation Tone

The following steps explain how to configure timekeeping settings only.

4. When the timekeeping setting you want to change is flashing, use 

D

 or 

B

 to

change it as described below.

Change the city code

Cycle between Auto DST (

A

vtA

), Daylight

Saving Time (

ON

) and Standard Time

(

OFF

).

Use

D

 (east) and 

B

(west).
Press

D

.

Screen:

To do this:

Do this:

Summary of Contents for 3217

Page 1: ...ay illumination can run down the battery quickly and require charging The following guidelines give an idea of the charging time required to recover from a single illumination operation Approximately 5 minutes exposure to bright sunlight coming in through a window Approximately 8 hours exposure to indoor fluorescent lighting Be sure to read Power Supply page E 59 for important information you need...

Page 2: ...le transmitter in the middle of the night and update its settings accordingly For information about the relationship between city codes and transmitters see page E 19 and Transmitters page E 86 See the maps under Approximate Reception Ranges page E 20 for information about the reception ranges of the watch You can disable time signal reception if you want See To turn auto receive on and off on pag...

Page 3: ...re 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 c...

Page 4: ...mation about the Moon phase indicator and Tide Graph page E 79 for information about the tide graph All of the operations in this section are performed in the Tide Moon Data Mode page E 10 Note It takes about two seconds to calculate tide graph data You will not be able to display a setting screen while data calculation is in progress Moon age is calculated to an accuracy of 1 day E 36 Tide Data T...

Page 5: ...ght Saving Time setting affects only the currently displayed city code Other city codes are not affected Note that you cannot switch between Standard Time and Daylight Saving Time while UTC is selected as the city code DST indicator E 45 Alarms The Alarm Mode gives you a choice of four one time alarms and one snooze alarm Also use the Alarm Mode to turn the Hourly Time Signal SIG on and off There ...

Page 6: ...rate See Illumination Precautions page E 89 for other important information about using illumination To illuminate the display manually In any mode except when a setting screen is on the display press B to turn on illumination The above operation turns on illumination regardless of the current auto light switch setting l l l l l l l lll l Auto light switch on indicator E 56 You can use the procedu...

Page 7: ...elow whenever charging its rechargeable battery Also note that allowing the watch to become very hot can cause its liquid crystal display to black out The appearance of the LCD should become normal again when the watch returns to a lower temperature Warning Leaving the watch in bright light to charge its rechargeable battery can cause it to become quite hot Take care when handling the watch to avo...

Page 8: ... DST setting will be retained If you change to a city that is outside your current transmitter area DST will be turned off automatically l l l l l l l l l l l l l l l l l l l l l l l l l l ll l l DST indicator E 74 Transmitter Japan China U S Europe U K Germany None Covered City Codes TPE SEL TYO HKG BJS HNL ANC YVR LAX YEA DEN MEX CHI NYC YHZ YYT LIS LON MAD PAR ROM BER STO ATH MOW All other city...

Page 9: ...f the week automatically for the period January 1 2000 to December 31 2099 Setting of the date by the time calibration signal cannot be performed starting from January 1 2100 This watch can receive signals that differentiate between leap years and non leap years Though this watch is designed to receive both time data hour minutes seconds and date data year month day certain signal conditions can l...

Page 10: ... Sign BPC Frequency 68 5 kHz E 92 Tide Moon Data Moon phase indicator for specific date Tide level for specific date and time Other High tide time adjustment Moon phase reversal World Time 48 cities 31 time zones Other Daylight Saving Time Standard Time Alarms 5 daily alarms four one time alarms one snooze alarm Hourly Time Signal Stopwatch Measuring unit 1 100 second Measuring capacity 23 59 59 9...

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