Casio 5105 Users Manual QW

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Operation Guide 5105

1

MO0905-EA

Getting Acquainted

Congratulations upon your selection of this CASIO watch. To get the most out of your

purchase, be sure to read this manual carefully.

Keep the watch exposed to bright light

The electricity generated by the solar cell of the watch is

stored by a built-in battery. Leaving or using the watch

where it is not exposed to light causes the battery to run

down. Make sure the watch is exposed to light as much as

possible.

•When you are not wearing the watch on your wrist,

position the face so it is pointed at a source of bright

light.

•You should try to keep the watch outside of your sleeve

as much as possible. Charging is reduced significantly if

the face is even only partially covered.

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Bright Light

Solar cell

•The watch continues to operate, even when it is not exposed to light. Leaving the

watch in the dark can cause the battery to run down, which will result in some watch

functions to be disabled. If the battery goes dead, you will have to re-configure watch

settings after recharging. To ensure normal watch operation, be sure to keep it

exposed to light as much as possible.

All

functions

enabled

LEVEL 1

LEVEL 2

LEVEL 3

LEVEL 4

Charge

Rechargeable battery

Bright Light

Electrical

energy

Solar cell

(Converts light to

electrical power.)

Some or all

functions

disabled

LEVEL 1

LEVEL 2

LEVEL 3

LEVEL 4

Dis-

charge

Battery charges in the light. Battery discharges in the dark.

•The actual level at which some functions are disabled depends on the watch model.

•Frequent display 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 about 8 hours exposure to indoor fluorescent lighting

•Be sure to read “Power Supply” for important information you need to know

when exposing the watch to bright light.

If the display of the watch is blank...

If the display of the watch is blank, it means that the watch’s Power Saving function

has turned off the display to conserve power.

•See “Power Saving Function” for more information.

Note that CASIO COMPUTER CO., LTD. assumes no responsibility for any

damage or loss suffered by you or any third party arising through the use of this

product or its malfunction.

About This Manual

•Depending on the model of your watch, display text

appears either as dark figures on a light background or

light figures on a dark background. All sample displays

in this manual are shown using dark figures on a light

background.

•Button operations are indicated using the letters shown

in the illustration.

•Each section of this manual provides you with the

information you need to perform operations in each

mode. Further details and technical information can be

found in the “Reference” section.

General Guide

•Press C to change from mode to mode.

•In any mode (except a setting mode), press B to illuminate the display for about

one second.

Timekeeping Mode

Press C.Alarm Mode Countdown Timer Mode

▲

World Time Mode Stopwatch Mode

▲

▲

▲

▲

Timekeeping

You can adjust the Home Time city data and time in the Timekeeping Mode. You also

can simultaneously display the current time in one other time zone, by specifying a

Dual Time City.

•For information about selecting a Dual Time City, see “To specify the Dual Time

City”.

•Pressing D in the Timekeeping Mode will cycle the lower display between the

screens shown below.

D

▲

▲

D

Home City Date Home City Time Dual Time

▲

D

Month – Day

Day of

week

Seconds

Right dial hand

(World Time)

PM indicator

Hour : Minutes

Dual Time

City code

Dual Time

(Hour :

Minutes)

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 City codes and Dual Time City are

displayed in accordance with the time and date settings you configure for the

Timekeeping Mode.

To set the time and date

1. In the Timekeeping Mode, hold down A for about five

seconds until the left dial hand points to T1 and the city

code flashes on the upper display. This is the setting

mode.

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”.

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City code

3. Press C to change the flashing screen content in the sequence shown below to

select the other setting.

Seconds

12/24-Hour

Format Hour

Minutes

DST

Month Year

City Code

DayPower Saving

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

Toggle between Daylight Saving Time

() and Standard Time ( ).

Use D (east) and B

(west).

Press D.

To do this: Do this:Screen:

5. Press A twice to exit the setting mode.

•For details about the Daylight Saving Time setting, see “To change the Daylight

Saving Time (summer time) setting”. For information about Power Saving, see “To

turn Power Saving on and off”.

•The day of the week is displayed automatically in accordance with the date (year,

month, and day) settings.

Toggle between 12-hour ( ) and

24-hour ( ) timekeeping

Reset the seconds to

Change the hour and minutes

Change the year, month, or day

Toggle between Power Saving on

() and off ( )

Press D.

Press D.

Use D (+) and B (–).

Press D.

12-hour and 24-hour timekeeping

•With the 12-hour format, the P (PM) indicator appears to the left of the hour digits for

times in the range of noon to 11:59 p.m. and no indicator appears for times in the

range of midnight to 11:59 a.m.

•With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without

any indicator.

•The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is

applied in all other modes.

Daylight Saving Time (DST)

Daylight Saving Time (summer time) advances the time setting by one hour from

Standard Time. Remember that not all countries or even local areas use Daylight

Saving Time.

Operation Guide 5105

2

To change the Daylight Saving Time (summer time) setting

1. In the Timekeeping Mode, hold down A for about five

seconds until the left dial hand points to T1 and the city

code flashes on the upper display. This is the setting

mode.

2. Press C. This will display the DST setting screen.

3. Press D to toggle between Daylight Saving Time (ON

displayed) and Standard Time (OFF displayed).

4. When the setting you want is selected, press A twice

to exit the setting mode.

• The DST indicator appears to indicate that Daylight

Saving Time is turned on.

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DST indicator

Dual Time

Dual Time lets you display the current time in another time zone called your “Dual

Time City”, in addition your Home City’s current time. This feature is very handy for

business professionals and others who need to keep track of the current time in two

different time zones.

• For information about how to display the current time in the Dual Time City in the

lower display, see “Timekeeping”.

To specify the Dual Time City

1. In the Timekeeping Mode, hold down A for about five

seconds until the left dial hand points to T1 and the city

code flashes on the upper display. This is the setting

mode.

2. Press A again. The left dial hand will move to T2 and

the current Dual Time City code will start to flash on the

upper display. This is the Dual Time City selection

screen.

3. Use D (eastward) and B (westward) to scroll through

the available city codes.

• See the “City Code Table” for information about city

codes.

4. Press A to exit the setting mode.

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Left dial hand

World Time

World Time digitally displays the current time in one of

48 cities (29 time zones) around the world. A simple

operation swaps your Home City with the currently

selected World Time City.

•The times kept in the World Time Mode are

synchronized with the time being kept in the

Timekeeping Mode. If you feel that there is an error in

any World Time Mode time, check to make sure you

have the correct city selected as your Home City. Also

check to make sure that the current time as shown in

the Timekeeping Mode is correct.

•Times in the World Time Mode are based on UTC

offsets. See the “City Code Table” for information about

the UTC offsets that are supported.

•All of the operations in this section are performed in the

World Time Mode, which you enter by pressing C.

Currently selected

World Time City

Current time in

World Time City

Right dial hand

(World Time hour)

Right Dial Hand

The right dial hand shows the current hour in the World Time City in all modes.

•The right dial hand moves just like the normal hour hand, completing one revolution

every 12 hours.

•Between the noon and midnight in the World Time Mode, a PM indicator (PM▼)

appears above the right dial hand.

▲

Press A.

One second

DateHour : Minutes Seconds

To view the current time in another time zone

In the World Time Mode, use D to scroll through available city codes (time zones).

Holding down the button scrolls at high speed.

•When the city code (time zone) you want is selected, you can press A to display

the date. After about one second, the watch will resume regular timekeeping.

To toggle a city code time between Standard Time and Daylight Saving Time

1. In the World Time Mode, press D to display the city

code (time zone) whose Standard Time/Daylight Saving

Time setting you want to change.

2. Hold down A for about three seconds to toggle

between Daylight Saving Time (DST indicator

displayed) and Standard Time (DST indicator not

displayed).

•The DST indicator is shown in the bottom (World Time)

display while Daylight Saving Time is turned on.

DST indicator

Swapping your Home City and World Time City

You can use the procedure below to swap your Home City and World Time City. This

changes your Home City to your World Time City, and your World Time City to your

Home City. This capability can come in handy when you frequently travel between two

cities in different time zones.

To swap your Home City and World Time City

1. In the World Time Mode, use D to select the World Time City you want.

2. Hold down A and B until the watch beeps.

• This will make the World Time City you selected in step 1 your Home City, and cause

the hour and minute hands to move to the current time in that city. At the same time,

it will change the Home City you had selected prior to step 2 your World Time City,

and cause the content upper and lower displays to change accordingly.

• After swapping the Home City and World Time City, the watch stays in the World

Time Mode with the city that was selected as the Home City prior to step 2 now

displayed as the World Time City.

Stopwatch

The stopwatch lets you measure elapsed time, split times,

and two finishes.

•The digital display range of the stopwatch is 23 hours,

59 minutes, 59.99 seconds.

•The stopwatch continues to run, restarting from zero

after it reaches its limit, until you stop it.

•The stopwatch measurement operation continues even

if you exit the Stopwatch Mode.

•Exiting the Stopwatch Mode while a split time is frozen

on the display clears the split time and returns to

elapsed time measurement.

•All of the operations in this section are performed in the

Stopwatch Mode, which you enter by pressing C.

1/100 second

Hours

Minutes

Seconds

Clear

D

Start Stop Re-start Stop

DD

D

➤ ➤ ➤ A

➤

D

Start Split

(SPL displayed)

Split release Stop

AD

A

➤ ➤ ➤

Clear

A

➤

D

Start Split

First runner

finishes.

Display time of

first runner.

Stop

Second runner

finishes.

Split release

Display time of

second runner.

DA

A

➤ ➤ ➤

Clear

A

➤

To measure times with the stopwatch

Elapsed Time

Split Time

Two Finishes

Countdown Timer

You can set the countdown timer start time within a range

of one minute to 60 minutes. An alarm sounds when the

countdown reaches zero.

•You also can select auto-repeat, which automatically

restarts the countdown from the original value you set

whenever zero is reached.

•All of the operations in this section are performed in the

Countdown Timer Mode, which you enter by pressing

C.

Seconds

Minutes

Start time (minutes)

To use the countdown timer

Press D while in the Countdown Timer Mode to start the countdown timer.

•When the end of the countdown is reached and auto-repeat is turned off, the alarm

will sound for 10 seconds or until you stop it by pressing any button. The countdown

time is reset to its starting value automatically after the alarm stops.

•When auto-repeat is turned on, the countdown will restart automatically without

pausing when it reaches zero. The alarm sounds to signal when the countdown

reaches zero. The countdown is repeated up to eight times, and then stops.

•The number of the current repeat (1 to 8) is shown in the lower display.

•The countdown timer measurement operation continues even if you exit the

Countdown Timer Mode.

•To stop a countdown timer operation completely, first pause it (by pressing D), and

then press A. This returns the countdown time to its starting value.

To configure countdown start time and auto-repeat settings

1. While the countdown start time is on the display in the

Countdown Timer Mode, hold down A for about three

seconds until the minute setting of the countdown start

time starts to flash. This is the setting mode.

•If the countdown start time is not displayed, use the

procedure under “To use the countdown timer” to

display it.

2. Press C to move the flashing in the sequence shown

below, and select the setting you want to change.

Start Time

(Minutes)

Auto-Repeat

On/Off

C

3. Perform the following operations, depending on which setting currently is selected

on the display.

•While the start time setting is flashing, use D (+) and B (–) to change it.

•While the auto-repeat on/off setting (on or OFF) is flashing on the display, press

D to toggle auto-repeat on (on) and off (OFF).

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Start time (minutes)

4. Press A to exit the setting mode.

•The auto-repeat on indicator ( ) is displayed on the Countdown Timer Mode screen

while this function is turned on.

•Frequent use of auto-repeat and the alarm can run down battery power.

Alarms

When an alarm is turned on, the alarm tone will sound

when its alarm time is reached. One of the alarms is a

snooze alarm, while the other four are one-time alarms.

You also can turn on an Hourly Time Signal that causes

the watch to beep twice every hour on the hour.

•There are five alarm screens numbered AL1, AL2,

AL3 and AL4 for the one-time alarm, and a snooze

alarm screen indicated by SNZ. The Hourly Time

Signal screen is indicated by SIG.

•All of the operations in this section are performed in the

Alarm Mode, which you enter by pressing C.

Alarm number

Alarm time

(Hour : Minutes)

Operation Guide 5105

3

To set an alarm time

1. In the Alarm Mode, use D to scroll through the alarm

screens until the one whose time you want to set is

displayed.

•To set a one-time alarm, display alarm screen AL1,

AL2, AL3 or AL4. To set the snooze alarm,

display the SNZ screen.

•SIG is the hourly time signal setting.

•The snooze alarm repeats every five minutes.

2. After you select an alarm, hold down A for about three seconds until the hour

setting of the alarm time starts to flash. This is the setting mode.

•This operation turns on the alarm automatically.

3. Press C to move the flashing between the hour and minute settings.

4. While a setting is flashing, use D (+) and B (–) to change it.

5. Press A to exit the setting mode.

Alarm Operation

The alarm tone sounds at the preset time for 10 seconds, regardless of the mode the

watch is in. In the case of the snooze alarm, the alarm operation is performed a total

of seven times, every five minutes, or until you turn the alarm off.

•Alarm and Hourly Time Signal operations are performed in accordance with the

current time in your Home City, as kept in the Timekeeping Mode.

•To stop the alarm tone after it starts to sound, press any button.

•Performing any one of the following operations during a 5-minute interval between

snooze alarms cancels the current snooze alarm operation.

Displaying the Timekeeping Mode setting screen

Displaying the

SNZ

setting screen

To turn an alarm on and off

1. In the Alarm Mode, use D to select an alarm.

2. Press A to toggle it on and off.

•Turning on a alarm (AL1, AL2, AL3, AL4 or

SNZ) displays the alarm on indicator on its Alarm

Mode screen.

•In all modes, the alarm on indicator is shown for any

alarm that currently is turned on.

•The alarm on indicator flashes while the alarm is

sounding.

•The snooze alarm indicator flashes while the snooze

alarm is sounding and during the 5-minute intervals

between alarms.

Alarm on

indicator

Snooze alarm indicator

ON

To turn the Hourly Time Signal on and off

1. In the Alarm Mode, use D to select the Hourly Time

Signal (SIG).

2. Press A to toggle it on and off.

•The Hourly Time Signal on indicator is shown on the

display in all modes while this function is turned on.

Hourly time signal

on indicator

Illumination

An LED (light-emitting diode) illuminates the face of the

watch for easy reading in the dark. The watch’s auto light

switch turns on illumination automatically when you angle

the watch towards your face.

•The auto light switch must be turned on (indicated by

the auto light switch on indicator) for it to operate.

•See “Illumination Precautions” for other important

information about using illumination.

To illuminate the display manually

In any mode (except a setting mode), press B to turn on

the illumination for about one second.

•The above operation turns on illumination regardless of

the current auto light switch setting.

Auto light switch

on indicator

About the Auto Light Switch

Turning on the auto light switch causes illumination to turn on, whenever you position

your wrist as described below in any mode.

Note that this watch features a “Full Auto LED Light”, so the auto light switch operates

only when available light is below a certain level. It does not illuminate the display

under bright light.

•The auto light switch is always disabled, regardless of its on/off setting, while an

alarm is sounding.

Moving the watch to a position that is parallel to the ground and then tilting it towards

you more than 40 degrees causes illumination to turn on.

• Wear the watch on the outside of your wrist.

Parallel to

ground

More than

40°

Warning!

•Always make sure you are in a safe place whenever you are reading the

display of the watch using the auto light switch. Be especially careful when

running or engaged in any other activity that can result in accident or injury.

Also take care that sudden illumination by the auto light switch does not

startle or distract others around you.

•When you are wearing the watch, make sure that its auto light switch is turned

off before riding a bicycle or operating a motorcycle or any other motor

vehicle. Sudden and unintended operation of the auto light switch can create a

distraction, which can result in a traffic accident and serious personal injury.

To turn the auto light switch on and off

In the Timekeeping Mode, hold down B for about three seconds to toggle the auto

light switch on (auto light switch on indicator displayed) and off (auto light switch on

indicator not displayed).

•The auto light switch on indicator is on the display in all modes while the auto light

switch is turned on.

Power Supply

This watch is equipped with a solar cell and a special rechargeable battery (secondary

battery) that is charged by the electrical power produced by the solar cell. The

illustration shown below shows how you should position the watch for charging.

Example: Orient the watch so its face is

pointing at a light source.

•The illustration shows how to position

a watch with a resin band.

•Note that charging efficiency drops

when any part of the solar cell is

blocked by clothing, etc.

•You should try to keep the watch

outside of your sleeve as much as

possible. Charging is reduced

significantly if the face is even only

partially covered.

Solar cell

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 special 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 special rechargeable battery to charge fully, contact your dealer

or CASIO distributor about having it replaced.

•Never try to remove or replace the watch’s special 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 (CHG)

and when you have the battery replaced.

•Turn on the watch’s Power Saving function 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.

Battery Power Indicator and Power Recovery Mode indicator

The battery power indicator indicates you the current status of the rechargeable

battery’s power.

Battery Power Indicator

(Charge Soon Alert)

Level

1

(H)

2

(M)

3

(L)

4

(CHG)

5

(CHG)

Function Status

All functions enabled.

All functions enabled.

Illumination and beeper

disabled.

Except for timekeeping, all

functions and display

indicators disabled.

All functions disabled.

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Battery Power

indicator

•The flashing LOW indicator at Level 3 (L) 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 (CHG), all functions are disabled and settings return to their initial factory

defaults. Once the battery reaches Level 2 (M) after falling to Level 5 (CHG),

reconfigure the current time, date, and other settings.

•Display indicators reappear as soon as the battery is charged from Level 5 (CHG) to

Level 2 (M).

•The watch’s Home City code setting will change automatically to TYO (Tokyo)

whenever the battery drops to Level 5 (CHG). If this happens, change the Home City

to the setting you want.

•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.

•Overuse of display illumination or the beeper can cause

the RECOV (Recover) indicator to appear in the upper

display, which indicates that the watch is in the battery

power recovery mode. Face illumination, the alarm, the

countdown timer alarm, and all hand operations are

disabled in the power recovery mode. The watch

continues to keep time internally, so normal timekeeping

and function will resume as soon as battery power

recovers to normal levels, which is indicated when the

RECOV indicator disappears.

•If RECOV appears frequently, it probably means that

remaining battery power is low. Leave the watch in bright

light for some time to allow it to charge.

Power recovery

mode indicator

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

Operation Guide 5105

4

Charging Guide

After a full charge, timekeeping remains enabled for up to about eight months.

•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.

•Stable operation is promoted by frequent exposure to light.

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

8 minutes

30 minutes

48 minutes

8 hours

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

3 hours 26 hours 7 hours

8 hours 98 hours 26 hours

12 hours 158 hours 43 hours

141 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.

Hand Home Position Correction

The hands of the watch can be thrown off by exposure to strong magnetism or impact.

If that happens, check if the home positions of the hands are correct and adjust the

home positions as required.

To adjust the home positions

1. In the Timekeeping Mode, hold down D for about three

seconds, until H-SET appears on the upper display.

•The dial hands are in their correct home positions

when the left dial hand moves to C (CHG) and the

right dial hand moves to 12. If they don’t, use B to

adjust the left dial hand position and D to adjust the

right dial hand position.

2. After confirming that both dial hands are in their correct

home positions, press C.

•This will change to hour hand and minute hand home

position manual correction.

Correct dial hand

positions

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•The hour and minute hands are in their correct home

positions if they are at 12 o’clock. If they are not, use

D (+) and B (–) to adjust their positions as required.

•Pressing C here will return to the setting at the

beginning of step 2.

3. After everything is the way you want, press A to return

to the Timekeeping Mode.

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Correct hour and

minute hand

positions

Reference

This section contains more detailed and technical information about watch operation.

It also contains important precautions and notes about the various features and

functions of this watch.

Power Saving Function

When turned on, the Power Saving function enters a sleep

state automatically whenever the watch is left in an area

for a certain period where it is dark. The table below

shows how watch functions are affected by the Power

Saving function.

•Wearing the watch inside the sleeve of clothing can cause it to enter the sleep state.

•The watch will not enter the sleep state between 6:00 AM and 9:59 PM. If the watch

is already in the sleep state when 6:00 AM arrives, however, it will remain in the

sleep state.

To recover from the sleep state

Perform any one of the following operations.

•Move the watch to a well-lit area.

•Press any button.

•Angle the watch towards your face for reading.

Elapsed Time

in Dark

60 to 70 minutes

6 or 7 days

Hands and Display

Left dial hand: PS; Right dial

hand: “12”; Other hands:

Normal; Display: Blank

Left dial hand: PS; Other hands:

Stopped at 12 o’clock;

Display: Blank

Operation

All functions enabled, except

for displays

Beeper tone, illumination, and

display disabled.

To turn Power Saving on and off

1. In the Timekeeping Mode, hold down A for about five

seconds until the left dial hand points to T1 and the city

code flashes on the upper display. This is the setting

mode.

2. Press C nine times until PS appears in the upper

display and a flashing on or OFF appears in the lower

display. This is the Power Saving on/off screen.

3. Press D to toggle Power Saving on (on) and off (OFF).

4. Press A twice to exit the setting mode.

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l

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On/Off status

Auto Return Features

•If you leave the watch with a flashing setting on the display for two or three minutes

without performing any operation, the watch will exit the setting mode automatically.

•The watch will return to the Timekeeping Mode automatically if you do not perform

any operation for two or three minutes in the Alarm Mode.

High-Speed Movement

The D and B buttons are used to change the hand setting in various setting modes.

In most cases, holding down these buttons will start high-speed movement of the

applicable hand(s).

Initial Screens

When you enter the World Time Mode or Alarm Mode, the data you were viewing

when you last exited the mode will appear first.

Timekeeping

•Resetting the seconds to 00 while the current count is in the range of 30 to 59

causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are

reset to 00 without changing the minutes.

•The year can be set in the range of 2000 to 2099.

•The watch’s built-in full automatic calendar makes allowances for different month

lengths and leap years. Once you set the date, there should be no reason to change

it except when battery power drops to Level 5 (CHG).

•The current time for all city codes in the Timekeeping Mode and World Time Mode is

calculated in accordance with the Coordinated Universal Time (UTC) for each city,

based on your Home City time setting.

Illumination Precautions

•Illumination may be hard to see when viewed under direct sunlight.

•Illumination turns off automatically whenever an alarm sounds.

•Frequent use of illumination runs down the battery.

Auto light switch precautions

•The auto light switch is turned off automatically whenever battery power is at Level 4

(CHG).

•Avoid wearing the watch on the inside of your wrist. Doing so causes the auto light

switch to operate when it is not needed, which shortens battery life. If you want to

wear the watch on the inside of your wrist, turn off the auto light switch feature.

•Illumination may not turn on if the face of the watch is

more than 15 degrees above or below parallel. Make

sure that the back of your hand is parallel to the ground.

•Illumination turns off in about one second, even if you

keep the watch pointed towards your face.

•Static electricity or magnetic force can interfere with

proper operation of the auto light switch. If illumination

does not turn on, try moving the watch back to the

starting position (parallel with the ground) and then tilt it

back toward you again. If this does not work, drop your

arm all the way down so it hangs at your side, and then

bring it back up again.

More than 15 degrees

too high

•Under certain conditions, illumination may not turn on until about one second after

you turn the face of the watch towards you. This does not necessarily indicate

malfunction of the auto light switch.

•You may notice a very faint clicking sound coming from the watch when it is shaken

back and forth. This sound is caused by mechanical operation of the auto light

switch, and does not indicate a problem with the watch.

Specifications

Accuracy at normal temperature: ± 15 seconds a month

Digital Timekeeping: Hour, minutes, seconds, p.m. (P), month, day, day of the week

Time format: 12-hour and 24-hour

Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099

Other: Home City code (can be assigned one of 48 city codes); Standard Time /

Daylight Saving Time (summer time); Simultaneous Home Time/Dual Time

indication

Analog Timekeeping: Hour, minutes (hand moves every 10 seconds)

World Time: 48 cities (29 time zones)

Other: Daylight Saving Time/Standard Time; Home City/World Time City Swapping

Stopwatch:

Measuring unit: 1/100 second

Measuring capacity: 23:59' 59.99''

Measuring modes: Elapsed time, split time, two finishes

Countdown Timer:

Measuring unit: 1 second

Input range: 1 minute to 60 minutes (1-minute increments)

Other: Auto-repeat timing

Alarms: Four one-time alarms; one snooze alarm; Hourly Time Signal

Illumination: LED (light-emitting diode); Auto Light Switch (Full Auto LED Light

operates only in the dark)

Other: Power Saving

Power Supply: Solar cell and one rechargeable battery

Approximate battery operating time: 8 months (from full charge to Level 5

(CHG)) under the following conditions:

•Watch not exposed to light

•Internal timekeeping

•Display on 18 hours per day, sleep state 6 hours per day

•1 illumination operation (1.5 seconds) per day

•10 seconds of alarm operation per day

Frequent use of illumination runs down the battery. Particular care is required

when using the auto light switch.

Operation Guide 5105

5

Pago Pago

Honolulu

Anchorage

Vancouver

Los Angeles

Edmonton

Denver

Mexico City

Chicago

Miami

Toronto

New York

Santiago

Halifax

St. Johns

Rio De Janeiro

Praia

Lisbon

London

Madrid

Paris

Rome

Berlin

Stockholm

PPG

HNL

ANC

YVR

LAX

YEA

DEN

MEX

CHI

MIA

YTO

NYC

SCL

YHZ

YYT

RIO

RAI

UTC

LIS

LON

MAD

PA R

ROM

BER

STO

City City

UTC Offset/

Code

GMT Differential

City Code Table

–11

–10

–9

–8

–7

–6

–5

–4

–3.5

–3

–1

0

+1

City City

UTC Offset/

Code

GMT Differential

Athens

Cairo

Jerusalem

Moscow

Jeddah

Tehran

Dubai

Kabul

Karachi

Delhi

Dhaka

Yangon

Bangkok

Singapore

Hong Kong

Beijing

Taipei

Seoul

Tokyo

Adelaide

Guam

Sydney

Noumea

Wellington

+2

+3

+3.5

+4

+4.5

+5

+5.5

+6

+6.5

+7

+8

+9

+9.5

+10

+11

+12

AT H

CAI

JRS

MOW

JED

THR

DXB

KBL

KHI

DEL

DAC

RGN

BKK

SIN

HKG

BJS

TPE

SEL

TYO

ADL

GUM

SYD

NOU

WLG

•Based on data as of June 2008.

•The rules governing global times (UTC offset and GMT differential) and summer

time are determined by each individual country.