Casio 5068 Owner's Manual

MA0902-EA

5SER SS'UIDE

Thank you for purchasing this CASIO watch. To ensure that it can provide you with the years of service for which it is designed, be sure to read this manual carefully and follow the instructions contained herein.

Pay particular attention to the Safety Precautions on the following pages. Be sure the read the Safety Precautions before trying to use this watch.

Be sure to keep all user documentation handy for future reference.

•• Note that the watch illustrations in this manual are intended for reference only, and so the actual watch may appear somewhat different than depicted by an illustration.

Features

•Solar charging

•Radio-controlled atomic timekeeping

•Stopwatch

•Countdown Timer

•World Time

•Alarm

•Auto hand home position correction

Be sure to charge the watch sufficiently before using it!

Your watch runs on electrical power generated from light, which is stored by a rechargeable battery.

To ensure stable operation, make sure that the watch is exposed to light as much as possible as described in this manual.

See “Solar Charging” for more information about required charging times.

1

Safety Precautions

Symbols

This manual and the watch itself use various symbols that are intended to ensure safe operation of the watch, to prevent injury to you and others, and to protect against material damage and loss. The following explains the meanings of the symbols.

Example Symbols

The symbol indicates something you need to exercise caution about. The symbol to the left indicates an electric shock precaution.

The symbol indicates something you must not do. The symbol to the left indicates that you should not try to disassemble something.

The symbol indicates something you must do. The symbol to the left indicates that you must unplug the power cord from the power outlet.

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Disregarding information with this label

Danger! creates the risk of death or serious personal injury.

Disregarding information with this label

Warning! could possibly create the risk of death or serious personal injury.

Disregarding information with this label

Caution! could possibly create the risk of personal injury or material loss.

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Warning!

Do not use this watch while scuba diving (aqualung).

•• This watch is not a diving watch. Improper use of this watch can lead to serious accident.

Battery

Whenever removing the button type battery, take care to ensure that the battery is not swallowed accidentally.

Special care is required where young children are present.

Keep batteries out of the reach of small children. Should a battery ever be swallowed accidentally, contact a physician immediately.

4

Caution!

User Maintenance

A dirty or rusty case or band can soil the sleeve of your clothing. Be sure to keep the case and band clean at all times. Rust tends to form easily after the watch is exposed to seawater and then left without cleaning.

5

Caution!

Skin Irritation

Since the watch and the band come into direct contact with the skin, the following conditions may cause irritation of the skin.

1.When a wearer is allergic to metal or leather

2.When the watch or band is rusty dirty, sweaty, etc.

3.When the wearer is in poor physical condition

•• Tightening the band too tightly can cause you to sweat and make it difficult for air to pass under the band, which can lead to skin irritation. Do not over-tighten the band.

•• The bacterial and odor resistant band suppresses the formation of organisms and bacteria due to sweat, and related odors. It does not protect against skin rash.

•• Should you ever notice any abnormality, immediately stop using the watch and consult a physician.

6

Caution!

Never try to take the watch apart!

Never try to take the watch apart. Doing so creates

the risk of personal injury and malfunction of the watch.

7

Caution!

Use of the Watch

To avoid unexpected accidents, always check around you to ensure you are in a safe place before looking at the display of the watch. Looking at the watch while running or jogging on the open road, while riding a bicycle, or operating a motor vehicle can lead to accidents. Take care to avoid running into others.

Take care to avoid breaking your fingernails when fastening and unfastening the band. Particular care is required by people with long fingernails.

To avoid unexpected injury or skin irritation due to allergic reaction, do not wear the watch while sleeping.

8

Caution!

Use of the Watch

When picking up or otherwise coming into contact with a child, remove the watch from your wrist to avoid injury to the child or causing irritation of the child’s skin.

9

Before using the watch...

Expose the watch to light.

Your watch runs on electrical power generated from light, which is stored by a rechargeable battery. Long-term storage of the watch can cause power to run low, so be sure to expose the watch to light before using it for the first time. See page 18 for more information.

Low Battery Alert

When battery power is low, the second hand of the watch will jump at 2-second intervals in the Timekeeping Mode to let you know that charging is required. See page 20 for more information.

*UMPS EVERYYTWOOSECONDS

Power Saving

Power Saving causes the watch to enter a sleep state automatically, which stops movement of the analog hands in order to save power whenever the watch is left in the dark.

The watch will exit the sleep state if you expose it to light or perform any button operation.

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•• Though the hands are stopped, the watch continues to keep time internally.

•• Note that the watch also may enter the sleep state if its face is blocked from light by your sleeve.

•• The watch does not enter the sleep state if it is in the Stopwatch Mode or Countdown Timer Mode.

How the sleep state works

Sleep Level 1

Sleep Level 1 is triggered whenever the watch is left in the dark for about one hour any time between the hours of 10 p.m. and 6 a.m. At this time, watch functions will operate as described below.

•• The second hand will stop at its current position.

•• The hour hand, 24-hour time hands, minute hand, and date indicator will continue to operate normally.

•• Auto Receive will be disabled.

•• Alarms and the hourly time signal will continue to operate normally. At this time, watch functions will operate as described below.

Sleep Level 2

Sleep Level 2 is triggered whenever the watch is left in the dark while in Sleep Level 1 for six or seven days.

•• The hour hand, 24-hour time hand, minute hand, and World Time will stop at their current positions.

•• World Time timekeeping will stop at the point the current time in the Timekeeping Mode reached 0:00.

•• Auto Receive will be disabled.

•• Alarms and the hourly time signal will be disabled.

•• Date display will continue to operate normally.

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Contents
Safety Precautions................................................	2
Symbols.........................................................................	2
Example Symbols.........................................................	2
Before using the watch.......................................	10
Expose the watch to light...........................................	10
Power Saving .............................................................	10
Modes and Indicators ........................................	16
Solar Charging....................................................	18
How a Radio-controlled Watch Works...............	24
What is a radio-controlled watch?............................	24
Calibration Signal.......................................................	25
Reception Ranges......................................................	27
Reception Time...........................................................	30
Positioning the Watch for Best Reception................	30
Receiving a Calibration Signal..................................	31
Auto receive................................................................	32
Using Manual Receive................................................	34
To cancel a manual receive operation...............................	36
To check the result of the last receive operation..............	37

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Calibration Signal Reception Precautions ..............	38
Troubleshooting .........................................................	39
Stopwatch............................................................	42
To start or stop an elapsed time operation.......................	42
To measure elapsed time....................................................	44
To measure split times........................................................	44
Countdown Timer................................................	46
To set the countdown timer start time...............................	47
To use the countdown timer...............................................	48
To stop the time up alert.....................................................	49
World Time...........................................................	50
To search for a city..............................................................	51
Summer Time..............................................................	52
To switch between standard time and
summer time manually........................................................	53
Home Time/World Time Swapping.............................	54
City Code List..............................................................	56
Alarm....................................................................	58
To set the alarm time...........................................................	59
To turn the alarm on or off..................................................	60
To stop the time up alert.....................................................	60
Configuring Home City Settings........................	62
Configuring Time and Date Settings Manually.....	66

13

Auto Hand Home Position Correction...............	73
To trigger the auto hand home position correction
operation manually..............................................................	74
Manual Home Position Correction.....................	75
Specifications......................................................	82
Operating Precautions........................................	84
Battery..................................................................	89
User Maintenance ..............................................	90

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15

Modes and Indicators

Each press of Ccycles through modes in the sequence shown below.

•• Stopping at a mode for about one second will cause the display to change to the data for that mode.

•• Operating a button while the hands are moving at high speed may cause the hands to stop temporarily.

4IMEKEEPINGE-ODE
#URRENTRTIME
)NDICATES HOURTANDS	2IGHTGDIAL HANDS
MINUTETIN ALL MODES	7ORLD 4IME
BUTTON	BUTTON
,EFT DIAL HAND
$AYYOF THE
WEEK MODE

3ECOND HAND

BUTTON

$AY

BUTTON

"OTTOM DIALMHAND #URRENTHHOUR IN HOURRFORMAT

•• Abutton

•• Press once to view the last receive result (page 37).

•• Any time except while the watch is performing auto hand home position correction, holding down Cfor about two seconds will return directly to the Timekeeping Mode.

•• See page 24 for more information.

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•• The shape and markings of the face depend on the watch

model.

3TOPWATCHH-ODE

#OUNTDOWN 4IMER -ODE

!FTERTINDICATING 34		#OUNTDOWN 4IMER HOURS
INDICATESC SECONDS		ANDNMINUTES
FOR STOPWATCH TIMING		)NDICATESC42
3TOPWATCH TIME HOURSM
ANDNMINUTES	0	0
!LARMA-ODE		7ORLD 4IME -ODE
)NDICATESC!,		)NDICATESC34$TOR $34
	!LARMMTIME	7ORLD 4IME
		#ITY CODE
	0	0
		17

Solar Charging

Your watch runs on electrical power generated from light, which is stored by a rechargeable battery.

To ensure stable operation, make sure that the watch is exposed to light as much as possible.

•• Whenever you are not wearing the watch on your wrist, position it so the face (solar cell) is pointed in the direction of a source of bright light. Leave the watch under fluorescent lighting, near a window, etc.

3OLARLCELL ,IGHT

•• The solar cell is located in the watch’s face. When wearing the watch, try to keep your clothing from blocking its face. Charging efficiency is reduced significantly even if the face of the watch is covered only partially by your sleeve.

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How the solar cell and battery work

While the watch is exposed to light...

,IGHT

3OLARLCELL

#ONVERTS LIGHT TOGPOWER

		%LECTRICAL ENERGY
	2ECHARGEABLE E	#HARGE
	BATTERY

0OWER SUPPLIEDPTO WATCH

While the watch is not exposed to light...

$ISCHARGE

2ECHARGEABLE BATTERY

0OWER SUPPLIEDPTO WATCH

Your watch continues to operate even when it is not exposed to light. Leaving the watch in the dark can run down its battery and cause functions to become disabled.

19

Charging Precautions

Avoid charging the watch in the following locations, and anywhere else where the watch may become very hot.

•• On the dashboard of an automobile parked in the sun

•• Very close to an incandescent light source or other sources of heat

•• In a location exposed to direct sunlight for long periods Depending on the light source you are using, the case of the watch may become quite hot when charging. Take care to guard against burn injury after charging.

Low Battery Alert

When battery power is low, the second hand of the watch will jump at 2-second intervals in the Timekeeping Mode to let you know that charging is required.

Important!

The following functions are disabled when battery power is low.

•• Auto receive and manual receive

•• Alarm beeper

•• Timer countdown (If a countdown is in progress when the battery goes low, it continues. However, time up alert does not sound.)

•• Even if the battery level drops to point that all functions become disabled, you still will be able to recharge the battery and use the watch again.

•• When you recharge the battery after it drops to a level where functions become disabled, the hands will move automatically back to the current time setting.

•• Try to keep the watch exposed to light as much as possible during normal use.

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.ORMALA/PERATION

-OVES EVERYY 7HEN BATTERYYRUNSNLOW SECOND

,OWW"ATTERYY!LERT

3ECOND HANDDJUMPSAEVERYY TWOOSECONDS !T MIDNIGHT THEHDATE INDICATOR WILLD CHANGE TOG E WHICH IS THE HOME POSITION

	(OME 0OSITION
*UMPS EVERYY	)F POWER DROPS EVEN MORE
TWOOSECONDS

3TOPPED

(ANDSNSTOP ATS O CLOCK

!LLLHANDSHSTOP ATS O CLOCKKHOMEOPOSITIONS

21

Recover Mode

If you use the alarm, calibration signal receive or any other function that puts a large load on the battery, the hands will stop temporarily. During this time all watch functions will be disabled.

Normal operation will return after the battery recovers.

Charging Guide

•• The tables in this section provide some guidelines about the amount of time required each day to ensure stable operation of the watch.

•• The values in this section are base on approximately four minutes of signal reception and 10 seconds of alarm operation per day.

	Exposure Level (Brightness)	Approximate Charging Time
	Outdoor Sunlight (50,000 lux)	8 minutes
	Sunlight through a Window	30 minutes
	(10,000 lux)
	Daylight through a Window on an	48 minutes
	Overcast Day (5,000 lux)
	Indoor Fluorescent Lighting	8 hours
	(500 lux)

•• Stable operation is enabled by frequent charging.

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•• Approximate Charge Times Required to Advance to a Higher

Level

	Exposure Level	Approximate Charging Time
	(Brightness)	Until Hand	Until Full Charge
		Movement Restarts
	Outdoor Sunlight	2 hours	23 hours
	(50,000 lux)
	Sunlight through a	6 hours	85 hours
	Window
	(10,000 lux)
	Daylight through
	a Window on an	8 hours	138 hours
	Overcast Day
	(5,000 lux)
	Indoor Fluorescent	92 hours	– – –
	Lighting (500 lux)

•• Note that the above charging times are for reference only. Actual charging time depends on a variety of environmental factors.

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How a Radio-controlled Watch Works

What is a radio-controlled watch?

A radio-controlled watch is designed to receive a time calibration signal that contains standard time data and adjust its current time setting accordingly.

4RANSMITTER ,ONG WAVEETIME CALIBRATIONISIGNAL

#ESIUM
ATOMIC CLOCK	7ATCH

After the watch receives the Standard Time signal, it performs internal calculations to determine the current time. Because of this, there may be an error of up to one second in the displayed time.

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Calibration Signal

•• The Japanese calibration signal (Call Sign: JJY) is maintained by the National Institute of Information and Communications Technology (NICT). It is transmitted 24 hours a day from Mt.

Otakadoya (40 kHz) located in Tamura-gun, Fukushima Prefecture, and from Mt. Hagane (60 kHz) located on the border between Saga Prefecture and Fukuoka Prefecture.

•• The Chinese time calibration signal (BPC) is maintained by National Time Service center (NTSC) of China and is transmitted from Shangqiu.

•• The U.S. calibration signal (Call Sign: WWVB) is transmitted by the National Institute of Standards and technology from Fort Collins, Colorado.

•• The U.K. calibration signal (Call Sign: MSF) is transmitted by the National Physical Laboratory (NPL) from Anthorn, which is located near Anthorn, Cumbria.

•• The German calibration signal (Call Sign: DCF77) is transmitted by Physikalisch - Technische Bundesanstalt (PTB) in Mainflingen, which is located southeast of Frankfurt.

•• Time calibration signal frequencies and transmitter locations are subject to change.

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Note that transmission of the Japanese calibration signal may be interrupted occasionally due to maintenance, lightning, etc. For more information, visit the website of the Japan Standard Time Group of the National Institute of Information and Communications Technology (NICT) at the following URL.

http://jjy.nict.go.jp

•• Note that the above URL is subject to change.

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Reception Ranges

The table below shows the time calibration signal that the watch receives when a particular city code is selected as your Home City.

•• For information about the Home City setting, see page 62. See page 56 for details on city codes.

	Home City	Receivable Transmitter
	(Supports signal reception)
	TYO	Japan (JJY)
	HKG	Chinese Time Calibration Signal
		(BPC)
	(HNL), (ANC), LAX, DEN,	United States (WWVB)
	CHI, NYC
	LON, PAR, ATH	U.K. (MSF) and Germany (DCF77)

•• City codes in parentheses indicate areas where reception may be possible when conditions are good.

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