Casio 5415 Operation Guide

MO1408-EB

Operation Guide 5415

Congratulations upon your selection of this CASIO watch.

Applications

This watch has built-in sensors that measure direction and temperature. Measurement results are indicated by the watch’s hands and displays. These features make this watch useful when hiking, mountain climbing, or when engaging in other such outdoor activities.

• The measurement functions built into this watch are not intended for taking measurements that

require professional or industrial precision. Values produced by this watch should be considered as reasonable representations only.

•

When engaging in mountain climbing or other activities in which losing your way can create a dangerous or life-threatening situation, always use a second compass to conﬁ rm direction readings.

• 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.

E E-1

Warning!

About This Manual

• Depending on the model of your watch, display text appears either as

dark ﬁ gures on a light background, or light ﬁ gures on a dark background. All examples in this manual are shown using dark ﬁ gures on a light background.

• Button operations are indicated using the letters shown in the

illustration.

• Note that the product illustrations in this manual are intended for

reference only, and so the actual product may appear somewhat different than depicted by an illustration.

Important!

• Whenever you use the digital compass of this watch for serious trekking, mountain climbing, or other

activities, always be sure to take along another compass to conﬁ rm readings. If the readings produced by the digital compass of this watch are different from those of the other compass, perform bidirectional calibration of the digital compass to ensure more accurate readings.

• Direction readings and digital compass calibration will not be possible if the watch is in the vicinity of a

permanent magnet (magnetic accessory, etc.), metal objects, high-voltage wires, aerial wires, or electrical household appliances (TV, computer, cellphone, etc.)

Things to check before using the watch

1. Check the Home City and the daylight saving time (DST) setting.

Use the procedure under “To conﬁ gure Home City settings” (page E-13) to conﬁ gure your Home City and daylight saving time settings.

Important!

Proper World Time Mode data depends on correct Home City, time, and date settings in the Timekeeping Mode. Make sure you conﬁ gure these settings correctly.

2. Set the current time.

See “Conﬁ guring Current Time and Date Settings” (page E-15).

The watch is now ready for use.

ENGLISH

E-2

Contents

About This Manual …………………………………………………………………………………………… E-2

Things to check before using the watch ………………………………………………………………… E-3

Mode Reference Guide ……………………………………………………………………………………… E-7

Timekeeping ………………………………………………………………………………………………… E-12

Conﬁ guring Home City Settings ………………………………………………………………………… E-13

To conﬁ gure Home City settings …………………………………………………………………… E-13 To change the daylight saving time (summer time) setting……………………………………… E-14

Conﬁ guring Current Time and Date Settings ………………………………………………………… E-15

To change the current time and date settings …………………………………………………… E-15

Hand Home Position Adjustment ……………………………………………………………………… E-18

To adjust home positions …………………………………………………………………………… E-18

Using the Digital Compass ……………………………………………………………………………… E-20

To perform a digital compass operation …………………………………………………………… E-20 To perform bidirectional calibration ………………………………………………………………… E-24 To perform magnetic declination correction ……………………………………………………… E-26 To store a direction angle reading in Bearing Memory ………………………………………… E-28

Taking Temperature Readings …………………………………………………………………………… E-33

To take temperature readings ……………………………………………………………………… E-33 To calibrate the temperature sensor ……………………………………………………………… E-35

E-4

Illumination ………………………………………………………………………………………………… E-47

To illuminate the display manually ………………………………………………………………… E-47 To change the illumination duration ……………………………………………………………… E-47 To enable or disable the auto light switch ………………………………………………………… E-49

Button Operation Tone …………………………………………………………………………………… E-51

To enable or disable the button operation tone ………………………………………………… E-51

Low Battery Indication …………………………………………………………………………………… E-52

Troubleshooting …………………………………………………………………………………………… E-53

Speciﬁ cations ……………………………………………………………………………………………… E-57

Specifying Temperature Unit …………………………………………………………………………… E-36

To specify the temperature unit …………………………………………………………………… E-36

Checking the Current Time in a Different Time Zone ………………………………………………… E-37

To enter the World Time Mode …………………………………………………………………… E-37 To conﬁ gure World Time City and summer time settings ……………………………………… E-38 To swap your Home Time and World Time Cities ……………………………………………… E-39

Using the Stopwatch ……………………………………………………………………………………… E-40

To enter the Stopwatch Mode ……………………………………………………………………… E-40 To perform an elapsed time operation …………………………………………………………… E-40 To pause at a split time ……………………………………………………………………………… E-40 To measure two ﬁ nishes …………………………………………………………………………… E-41

Using the Countdown Timer ……………………………………………………………………………… E-42

To enter the Countdown Timer Mode ……………………………………………………………… E-42 To specify the countdown start time ……………………………………………………………… E-42 To perform a countdown timer operation ………………………………………………………… E-43 To stop the alarm …………………………………………………………………………………… E-43

Using the Alarm …………………………………………………………………………………………… E-44

To enter the Alarm Mode …………………………………………………………………………… E-44 To set an alarm time ………………………………………………………………………………… E-45 To test the alarm …………………………………………………………………………………… E-45 To turn an alarm and the Hourly Time Signal on and off………………………………………… E-46 To stop the alarm …………………………………………………………………………………… E-46

Mode Reference Guide

Your watch has 7 “modes”. The mode you should select depends on what you want to do.

To do this: Enter this mode: See:

• View the current date in the Home City

• Conﬁ gure Home City and daylight saving time (DST) settings

• Conﬁ gure time and date settings

• Determine north and the bearing to a destination

• Store a bearing (Bearing Memory)

• Determine your current location using the watch and a map

Determine the temperature at your current location Thermometer Mode E-33

View the current time in 48 cities (31 time zones) and UTC World Time Mode E-37

Use the stopwatch to measure elapsed time Stopwatch Mode E-40

Use the countdown timer Countdown Timer Mode E-42

Set an alarm time Alarm Mode E-44

Timekeeping Mode E-12

Digital Compass Mode E-20

E-3

E-5

E-6

E-7

Operation Guide 5415

Selecting a Mode

• The illustration below shows which buttons you need to press to navigate between modes.

• To return to the Timekeeping Mode from any other mode, hold down D for about two seconds.

World Time ModeStopwatch Mode

Mode dial hand

Countdown Timer Mode

E-8

General Functions (All Modes)

The functions and operations described in this section can be used in all of the modes.

Direct Timekeeping Mode Access

• To enter the Timekeeping Mode from any other mode, hold down D for about two seconds.

Auto Return Features

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

for a particular amount of time in each mode.

Mode Name Approximate Elapsed Time

Alarm, Digital Compass 2 to 3 minutes

Thermometer 1 to 2 minutes

Setting screen (digital setting ﬂ ashing) 2 to 3 minutes

Initial Screens

When you enter the Alarm, World Time, or Digital Compass Mode, the data you were viewing when you last exited the mode appears ﬁ rst.

Scrolling

TheE and B buttons are used on the setting screen to scroll through data on the display. In most cases, holding down these buttons during a scroll operation scrolls through the data at high speed.

Mode dial hand

Alarm Mode

• The mode dial hand indicates the watch’s current mode.

Timekeeping Mode

Digital Compass Mode

Mode dial hand

Digital Meter

• The digital meter indicates the seconds count in the Timekeeping Mode (page E-12), World Time Mode

(page E-37), and Timer Mode (page E-42). In the Stopwatch Mode (page E-40) it indicates the 1/10-second count.

• While viewing bearing memory contents in the Digital Compass mode (page E-29), the digital meter

shows a bearing pointer.

Thermometer Mode

Digital Meter

Mode dial hand

E-9

E-10

Timekeeping

Use the Timekeeping Mode to view the current time and date, and the day of the week.

• Each press of A in the Timekeeping Mode will change screen contents as shown below.

• The digital meter shows the seconds count.

E-12

5. After all of the settings are the way you want, press A to exit the setting screen.

• The DST indicator w ill be on the up per display wh ile daylight s aving time is tu rned on.

Note

• After you sp ecify a cit y code, the wa tch will use UT C* offset s in the World T ime Mode to ca lculate

the current ti me for other t ime zones ba sed on the cur rent time in yo ur Home Ci ty.

* Coordinated Universal Time, the world-wide scientiﬁ c standard of timekeeping.

The reference point for UTC is Greenwich, England.

To change the daylight saving time (summer time) setting

3. Press E to toggle the DST setting between daylight saving time (ON) and standard time (

4. After all of the settings are the way you want, press A to exit the setting screen.

• The DST indicator w ill be on the up per display wh ile daylight s aving time is tu rned on.

Date Screen Time Screen

Month Day

Hour hand

Day of week

Second hand

Digital meter

Minute hand

Mode dial hand

1. In the Timekeeping Mode, hold down A until lower display.

• When you rel ease A (aft er ADJ appears), SET will be ﬂ ashing in

the upper display.

2. Press D.

• This will cause the DST indicator to appear in the u pper display

and the DST s etting of t he currently s elected Ho me City to a ppear in the lower dis play.

Hour : Minutes

PM indicator

Seconds

ADJ

appears in the

OFF

E-11

Conﬁ guring Home City Settings

There are two Home City settings: actually selecting the Home City, and selecting either standard time or daylight saving time (DST).

To conﬁ gure Home City settings

City code and city name

DST indicator

1. In the Timekeeping Mode, hold down A until lower display.

• When you rel ease A (aft er ADJ appears), SET will be ﬂ ashing in

the upper dis play. This is the set ting mod e.

• The watch will exi t the setti ng mode auto matically i f you do not

perform a ny operatio n for about t wo or three m inutes.

2. Use E (East) and B (West) to scroll through the available city codes.

• Keep scrolling u ntil the cit y code you wan t to select as you r Home

City is sho wn in the lowe r display.

• For detail s about cit y codes, se e the “Cit y Code Table” at the b ack

of this manual.

3. Press D.

• This will cause the DST indicator to appear in the u pper display

and the DST s etting of t he currently s elected Ho me City to a ppear in the lower dis play.

PressE to toggle the DST setting between daylight saving time (ON) and standard time (

• Note that you c annot switc h between s tandard tim e and daylight

saving time (D ST) wh ile UTC is sele cted as your H ome Cit y.

OFF

ADJ

appears in the

E-13

Conﬁ guring Current Time and Date Settings

You can use the procedure below to adjust the Timekeeping Mode time and date settings if they are off. Changing the digital Home City data should cause the analog time setting to change accordingly. If the analog time does not indicate the digital time, check the home positions of the hands and make adjustments if necessary (page E-18).

To change the current time and date settings

City codeCity code

1. In the Timekeeping Mode, hold down A until lower display.

• When you rel ease A (aft er ADJ appears), SET will be ﬂ ashing in

the upper dis play.

ADJ

appears in the

E-14

E-15

Operation Guide 5415

2. Press D to move the ﬂ ashing in the sequence shown below to select the other settings.

City Code DST

Illumination Duration

• The follow ing steps expl ain how to con ﬁ gure timeke eping set tings only.

3. When the timekeeping setting you want to change is ﬂ ashing, use E and/or B to change it as described below.

Screen To do this: Do this:

E-16

Change the city code Use E (East) and B (West).

Toggle between daylight saving time (ON) and standard time (

Toggle between 12-hour ( timekeeping.

Reset the seconds to (If the current seconds count is between 30 and 59, one is added to the minute count).

Change the hour or minutes

Change the year, month, or day

12/24-Hour Format

Button Operation Tone On/Off

OFF

Seconds Hour

Day Month

12H

) and 24-hour (

24H

)

Minutes

Year

PressE.

UseE (+) and B (–).

Hand Home Position Adjustment

Strong magnetism or impact can cause the hands of the watch to be off.

• Home position adjustment is not necessary when the analog time and digital time are the same time in

the Timekeeping Mode.

To adjust home positions

1. In the Timekeeping Mode, hold down A and keep it depressed for about ﬁ ve seconds until

• When you rel ease A after H.SET appears, the second hand will

move to 12 o’clock. This i ndicates the s econd han d home posi tion adjustment mode.

• Though ADJ will appear in the lowe r display abou t two seco nds

after you ho ld down A, do not releas e the butto n yet. Keep it depressed until H.SET appears.

• Use the D button to se lect a hand fo r adjustme nt. Each pres s

of D cycles in sequ ence from th e second ha nd, to the hou r and minute hands , and then th e mode dial ha nd. Select ing a hand causes it to move to 12 o’cloc k and the con tent of the uppe r display chang es as shown i n the table be low.

H.SET

appears on the lower display.

Upper display Selected hand

Flashing

0:00

Sub

Second hand

Hour and minute hands

Mode dial hand

4. After all of the settings are the way you want, press A to exit the setting screen.

Note

• For inform ation abo ut selecti ng a Home Cit y and conﬁ guring the DS T setting, s ee “Conﬁ g uring

Home Cit y Setti ngs” (page E-13).

• While the 12- hour form at is selecte d for timeke eping, a P (PM) in dicator will ap pear for tim es from

noon to 11:59 p.m. No indi cator appea rs for time s from midnig ht to 11:59 a.m. With 24 -hour fo rmat, time is displayed fro m 0:00 to 23:59, without any P (PM) indicator.

• The watch’s built- in full autom atic calend ar makes allo wances for dif ferent month lengths and l eap

years. Once y ou set the date, th ere should b e no reason to cha nge it except af ter you have the watch’s battery re placed.

• The day of the we ek changes a utomatic ally as the date a nd/or year ch anges. Ma ke sure that your

date and year settings are correct.

• Refer to the page s shown bel ow for more in formatio n on Timeke eping Mod e setting s.

- Button operation tone on/off: “To enable or disable the button operation tone” (page E-51)

- Illumination duration setting: “To change the illumination duration” (page E-47)

• If the selec ted hand doe s not move exactl y to 12 o’clock, per form step 2 bel ow to adjust it.

• The watch will return to regular timekeeping automatically if you do not perform any operation for

about two or three minutes. Any changes you have made to settings up to that point will be saved.

2. Use E (+) and B (–) to adjust the position of the currently selected hand.

• Holding do wn either bu tton will c ause the han d to move at high spe ed. Once st arted, hig h-spee d

hand moveme nt will conti nue even if you rel ease the but ton. To s top high- speed han d movement, press any but ton.

• The second hand and mode dial hand will automatically stop high-speed movement after they

complete one revolution. The minute hand will stop automatically after 12 revolutions.

3. Press A to exit home position correction and return to regular timekeeping.

Note

After performing home position adjustment, check to make sure that the analog hands and the upper display indicate the same time. If they do not, perform home position adjustment again.

E-17

E-18

Using the Digital Compass

You can use the Digital Compass Mode to determine the direction of north, and to check your bearing to a destination.

• For information about what you can do to improve digital compass reading accuracy, see “Calibrating

the Bearing Sensor” (page E-23) and “Digital Compass Precautions” (page E-31).

To perform a digital compass operation

1. Place the watch on a ﬂ at surface. If you are wearing the watch, make sure that your wrist is horizontal

(in relation to the horizon).

2. Point the 12 o’clock position of the watch in the direction you want to check.

3. In any mode (except a setting mode), press C to perform a digital compass operation.

• This will cause the mode dial hand to move to COMPASS.

• COMP will appear in th e lower display t o indicate that a d igital com pass operat ion is in progre ss.

• After abo ut two sec onds, the s econd hand w ill point in th e direction o f magnetic no rth. Th e

bearing and d irection an gle value will a ppear on the d igital disp lay.

E-20

Digital Compass Readings

• After the ﬁ rst reading is obtained, the watch will continue to take digital compass readings automatically

each second for up to 20 seconds. After that, the digital compass operation will stop automatically.

• The direction indicator and angle value will show

complete.

• The auto light switch is disabled during the 20 seconds that digital compass readings are being taken.

• The following table shows the meanings of each of the direction abbreviations that appear on the lower

display.

Direction Meaning Direction Meaning Direction Meaning Direction Meaning

North

East

South

West

• The margin of error for the angle value and the direction indicator is ±15 degrees while the watch is

horizontal (in relation to the horizon). If the indicated direction is northwest (NW) and 315 degrees, for example, the actual direction can be anywhere from 300 to 330 degrees.

• Note that performing a digital compass operation while the watch is not horizontal (in relation to the

horizon) can result in large error.

• You can calibrate the bearing sensor if you suspect the direction reading is incorrect.

NNE

ESE

SSW

WNW

North-

northeast

East-

southeast

South-

southwest

West-

northwest

- - -

to indicate that the digital compass operation is

Northeast

Southeast

Southwest

Northwest

ENE

SSE

WSW

NNW

East-

northeast

South-

southeast

West-

southwest

North-

northwest

E-19

Objective Bearing Indication

Bearing Angle to Objective

Bearing to Objective: Northwest

N: North E: East W: West S: South

• See “Dig ital Com pass Readin gs” (page E-2 2) for informa tion abou t how directio n readings are

indicated by the watc h.

Note

• If there is an an gle value in the l ower display, it mea ns that the be aring mem ory reco rd (page

E-28) is displ ayed. If this happ ens, press E to exit the bea ring memo ry record.

4. To return to the mode you were in immediately before entering the Digital Compass Mode, press D. To enter the Timekeeping Mode, hold down D for at least two seconds.

• Any ongoing digital compass operation is paused temporarily while the watch is performing an alert

operation (daily alarm, Hourly Time Signal, countdown timer alarm) or while illumination is turned on (by pressingB). The digital compass operation resumes for its remaining duration after the operation that caused it to pause is ﬁ nished.

• See “Digital Compass Precautions” (page E-31) for important information about taking direction readings.

• The direction indicated by the Digital Compass is magnetic north.

You can use Magnetic Declination Correction to conﬁ gure the watch to indicate true north, if you want.

For details, see “Magnetic Declination Correction” below, “To perform magnetic declination correction” (page E-26), and “Magnetic North and True North” (page E-31).

Calibrating the Bearing Sensor

You should calibrate the bearing sensor whenever you feel that the direction readings being produced by the watch are off. You can use any one of two different bearing sensor calibration methods: bidirectional calibration or magnetic declination correction.

Bidirectional Calibration

•

Bidirectional calibration calibrates the bearing sensor in relation to magnetic north. Use bidirectional calibration when you want to take readings within an area exposed to magnetic force. This type of calibration should be used if the watch becomes magnetized for any reason.

Important!

• To ensure correct direction readings by the digital compass, be sure to perform bidirectional calibration

before using it. The digital compass may produce incorrect direction readings if you do not perform bidirectional calibration.

North

Meaning

315°

0°

E-21

E-22

E-23

Operation Guide 5415

Magnetic Declination Correction

•

With magnetic declination correction, you select a declination angle direction and input a magnetic declination angle (difference between magnetic north and true north), which allows the watch to indicate true north. You can perform this procedure when the magnetic declination angle is indicated on the map you are using.

Precautions about bidirectional calibration

• You can use any two opposing directions for bidirectional calibration. You must, however, make sure

that they are 180 degrees opposite each other. Remember that if you perform the procedure incorrectly, you will get wrong bearing sensor readings.

• Do not move the watch while calibration of either direction is in progress.

• You should perform bidirectional calibration in an environment that is the same as that where you plan

to be taking direction readings. If you plan to take direction readings in an open ﬁ eld, for example, calibrate in an open ﬁ eld.

To perform bidirectional calibration

1. In the Digital Compass Mode, hold down A.

• The secon d hand will move to 12 o’cloc k, indicati ng the

bidirectional calibration mode.

• At this time the lower display will show an upward pointing arrow

(

) and the uppe r display will sh ow -1-. The se indicate th at the

watch is ready for ca libration of t he ﬁ rst directi on.

2. Place the watch on a level surface facing any direction you want, and press C.

• This will start calibration of the ﬁ rst direction.

• --- will be shown in the up per display w hile ﬁ rst direct ion calibra tion is in prog ress. Whe n

calibratio n is success ful, OK will appea r in the lower d isplay for a sho rt while, a nd then chan ge to

. The upper di splay will sho w -2-. These indic ate that the watch i s ready for calib ration of the

second direction.

3. Rotate the watch 180 degrees.

4. Press C again.

• This will start calibration of the second direction.

• --- will be displayed in the up per display wh ile calibrati on is in progre ss.

• After cali bration is su ccessful, t he lower disp lay will show OK and t hen the watch wil l start a digi tal

compass operation.

• ERR will appear on t he lower displ ay for a shor t while if an er ror occurs. A fter that , the screen wi ll

automatic ally return to th e ﬁ rst directio n calibratio n screen (the o ne that appea rs after A is held down in step 1).

E-24

To perform magnetic declination correction

Magnetic declination

Magnetic declination angle value

angle value

Magnetic declination

Magnetic declination direction (E, W, or OFF)

direction (E, W, or OFF)

E-26

Using Bearing Memory

You can save the bearing to a particular destination in bearing memory and use it to ensure you are headed in the correct direction.

To store a direction angle reading in Bearing Memory

Direction angle

Direction angle of current

of current reading

reading

Bearing memory

Bearing memory direction angle value

direction angle value

North pointer

12 o’clock

12 o’clock position

position

Bearing Memory Data

1. In the Digital Compass Mode, hold down A.

• The secon d hand will move to 12 o’cloc k, indicati ng the bidirec tional

calibratio n mode.

2. Press D.

• The watch will en ter the magnet ic declinati on correct ion mode.

• The lower dis play will show t he current mag netic decli nation

direction, a nd the upper d isplay will sh ow the current m agnetic declinatio n angle value.

1. Press C to start a digital compass operation (page E-20).

• This will ta ke an initial rea ding and the n take readings eve ry

Bearing

Bearing Memory

Memory Pointer

Pointer

second for 2 0 secon ds.

• If a bearing me mory di rection ang le value is alread y displayed in

the lower dis play, it means that th ere is a reading al ready stored in Bearing M emor y. If this happens , press E to clear the Be aring Memor y reading and ex it the beari ng memor y screen bef ore performing the above step.

2. During the 20 seconds that digital compass readings are being taken, pressE to store the current reading in Bearing Memory.

• The watch will di splay the stored re ading and sta rt a digita l

compass o peration th at lasts for ab out 20 se conds. Th e stored bearing will b e indicated in t he digital m eter during thi s time.

• Pressing E will delete th e current Bea ring Memo ry conte nts (which

causes the bearing indication to disappear from the digital meter), and start a n ew 20 -secon d digital co mpass oper ation.

3. Use B and E to change the magnetic declination direction and angle setting as required.

North Setting Setting

Magnetic North OFF, 0°

True North

• Note that you can input the declination angle in whole degree units only, so you may need to round

off the value speciﬁ ed on the map. If your map indicates the declination angle as 7.4°, you should input 7°. In the case of 7.6° input 8°, for 7.5° you can input 7° or 8°.

• Holding do wn B or E will scroll the s etting at hi gh speed.

• You can turn off (OFF, 0°) magnetic decli nation co rrection by pre ssing B and E at the same

time.

• The illustra tion, for exa mple, shows t he value you sh ould input a nd the directi on setti ng you should

select whe n the map sho ws a magnetic d eclinatio n of 1° West.

E 90° to W 90°

E: East declination (Magnetic north is east of true north.) W: West declination (Magnetic north is west of true north.)

4. When the setting is the way you want, press A to exit the setting screen.

Bearing Memory Pointer

The digital meter indicates the bearing stored for a Bearing Memory record.

Bearing straight ahead

Bearing display area (Indicates a bearing within ±60° of 0.)

Bearing outside of display area (Bearing more than 60° left of 0.)

Bearing outside of display area (Bearing more than 60° right of 0.)

Bearing straight back

E-25

E-27

E-28

• To position yourself to move in the direction of the recorded bearing, move around until the Bearing

Memory Pointer points straight ahead of you, as shown above.

Example: Advancing to an objective while monitoring your bearing

Even if you lose sight of your objective, you can use a map to store the required bearing in bearing memory and refer to the memorized information to advance to your objective.

1. Set the map.

• For inform ation abo ut how to set a map, s ee “Posit ioning a map i n accordan ce with actua l

surroundings (setting a map)” below.

2. Place the watch on the map at your current location, and point 12 o’clock at your desired objective on the map.

3. Press E to store the direction to your objective in bearing memory. Now you can advance towards your objective while observing the stored direction on the watch display.

Important!

• As you progress, the direction to your bearing will change, so you need to keep updating the

information in bearing memory.

Positioning a map in accordance with actual surroundings (setting a map)

You can align a map with the northerly direction indicated by the watch, and then compare what is shown on the map with your actual surroundings. This is helpful for checking your current location and the location of your objective. This process is called “setting a map”.

• When setting a map, be sure to align the watch with true north. See “Magnetic North and True North”

(page E-31) and “Magnetic Declination Correction” (page E-24).

E-30

Digital Compass Precautions Magnetic North and True North

True north

Magnetic north

Earth

Location

• Taking a direction reading when you are near a source of strong magnetism can cause large errors in

readings. Because of this, you should avoid taking direction readings while in the vicinity of the following types of objects: permanent magnets (magnetic necklaces, etc.), concentrations of metal (metal doors, lockers, etc.), high tension wires, aerial wires, household appliances (TVs, personal computers, washing machines, freezers, etc.)

• Accurate readings are also impossible indoors, especially inside ferroconcrete structures. This is

because the metal framework of such structures picks up magnetism from appliances, etc.

• Accurate direction readings are impossible while in a train, boat, air plane, etc.

The northerly direction can be expressed either as magnetic north or true north, which are different from each other. Also, it is important to keep in mind that magnetic north moves over time.

• Magnetic north is the north that is indicated by the needle of a compass.

• True north, which is the location of the North Pole of the Earth’s axis, is the

north that is normally indicated on maps.

• The difference between magnetic north and true north is called the

“declination”. The closer you get to the North Pole, the greater the declination angle.

E-29

E-31

Operation Guide 5415

Storage

• The precision of the bearing sensor may deteriorate if the watch becomes magnetized. Because of

this, you should store the watch away from magnets or any other sources of strong magnetism, including: permanent magnets (magnetic necklaces, etc.), concentrations of metal (metal doors, lockers, etc.), and household appliances (TVs, personal computers, washing machines, freezers, etc.)

• Whenever you suspect that the watch may have become magnetized, perform the procedure under “To

perform bidirectional calibration” (page E-24).

E-32

Display Units

You can select either Celsius (°C) or Fahrenheit (°F) for the displayed temperature value. See “To specify the temperature unit” (page E-36).

Temperature Sensor Calibration

The temperature sensor built into the watch is calibrated at the factory and normally requires no further adjustment. If you notice serious errors in the temperature readings produced by the watch, you can calibrate the sensor to correct the errors.

Important!

• Incorrectly calibrating the temperature sensor can result in incorrect readings.

Carefully read the following before doing anything. –

Compare the readings produced by the watch with those of another reliable and accurate thermometer.

– If adjustment is required, remove the watch from your wrist and wait for 20 or 30 minutes to give the

temperature of the watch time to stabilize.

Taking Temperature Readings

This watch uses a temperature sensor to measure temperature.

To take temperature readings

TemperatureTemperature

Temperature

• Temperature is displayed in units of 0.1°C (or 0.2°F).

• The displayed temperature value changes to

range of –10.0°C to 60.0°C (14.0°F to 140.0°F). The temperature value will reappear as soon as the measured temperature is within the allowable range.

To calibrate the temperature sensor

4. Use E (+) and B (−) to calibrate the temperature value with the reading of another instrument.

• Each press of a b utton cha nges the tem perature valu e in units of 0.1°C (0.2 °F).

• To return the temperat ure to its uncal ibrated value (OFF set ting), press E and B at the same

time.

5. Press A to return to the Thermometer Mode.

Thermometer Precautions

Temperature measurements are affected by your body temperature (while you are wearing the watch), direct sunlight, and moisture. To achieve a more accurate temperature measurement, remove the watch from your wrist, place it in a well ventilated location out of direct sunlight, and wipe all moisture from the case. It takes approximately 20 to 30 minutes for the case of the watch to reach the actual surrounding temperature.

While in the Timekeeping Mode, press E.

TEMP

•

will appear in the lower display and temperature measurement will start. After about one second, the measurement reading will appear in the upper display.

• The watch will continue to take temperature readings every ﬁ ve

seconds for about two minutes.

• The watch will return to the Timekeeping Mode after the reading

operation is complete (about two minutes).

• Pressing E while a reading operation is in progress will stop the

operation and enter the Timekeeping Mode.

- - -

°C (or °F) if a measured temperature falls outside the

1. Take a reading with another measurement device to determine the

exact current temperature.

2. With the watch in the Timekeeping Mode, press E to enter the

Thermometer Mode.

3. Hold down A for about two seconds until the temperature reading

disappears from the bottom display. Release A at this time, which will cause the temperature reading to ﬂ ash, which indicates the setting mode.

E-33

E-34

Specifying Temperature Unit

Use the procedure below to specify the temperature unit to be used in the Thermometer Mode.

Important!

TOKYO

When setting cannot be changed.

To specify the temperature unit

E-36

To conﬁ gure World Time City and summer time settings

1. In the World Time Mode, use E (East) to scroll through city codes.

2. To toggle between summer time (

is selected as the Home City, the temperature unit is set automatically to Celsius (°C). This

1. In the Timekeeping Mode, press E to enter the Thermometer Mode.

2. Hold down A for about two seconds until the temperature reading disappears from the bottom display. Release A at this time, which will cause the temperature reading to ﬂ ash, which indicates the setting mode.

3. Press D to display the current temperature unit in the upper display.

4. Press E to toggle the temperature unit between °C (Celsius) and (Fahrenheit).

5. After the setting is the way you want, press A to exit the setting screen.

• For detail s about cit y codes, se e the “Cit y Code Table” at the b ack of this man ual.

• Holding do wn E will scroll at hig h speed.

• Pressing do wn B and E at the same ti me will jump t o the UTC cit y code.

hold down A.

• Using the Wor ld Time Mod e to change the D ST sett ing of the cit y code that is s elected as yo ur

Home Cit y also will ch ange the Ti mekeepin g Mode time D ST sett ing.

• Note that you c annot switc h betwee n standard ti me/daylight s aving time (D ST) whi le UTC is

selected as the World Time City.

• Note that the s tandard tim e/daylight s aving time (D ST) set ting affe cts only the c urrently se lected

city code. O ther cit y codes are n ot affected.

DST

in the upper display) and standard time (

Hold down A

DST indicator

DST

not displayed),

E-35

Checking the Current Time in a Different Time Zone

You can use the World Time Mode to view the current time in one of 31 time zones (48 cities) around the globe. The city that is currently selected in the World Time Mode is called the “World Time City”.

• You also can swap the current World Time City and Home Time City in the World Time Mode (page

E-39).

To enter the World Time Mode

Current time in the currently

Current time in the currently selected World Time City

selected World Time City

°F

Currently selected

Currently selected World Time City

World Time City

Swapping the Home City and World Time City

You can use the procedure below to swap your Home Time City (whose time is indicated by the hands) with your World Time City (whose time is indicated by the digital display). This function comes in handy for those who often travel between two different time zones.

• You need to conﬁ gure starting Home City and World Time City settings before performing the

procedure below.

To conﬁ gure Home City settings (page E-13) To conﬁ gure World Time City and summer time settings (page E-38)

To swap your Home Time and World Time Cities

PressA and B at the same time.

• The times indicated by the hand (Home City time) and on the digital display (World Time City time) will

be swapped with each other.

Home City [TYO] Time

UseD to select the World Time Mode as shown on page E-8.

• The mode dial hand will point to WT, and the current city code and city

name will scroll across the lower display. After that, the city code will remain shown in the lower display. You can scroll the city code and city name again by pressing A.

• The digital meter shows the seconds count.

• The hour, minute, and second hands will indicate the current

Timekeeping Mode time.

Home City [LON] Time

$ and %

Current World Time City and Time

New World Time City and Time

E-37

E-38

E-39

Operation Guide 5415

Using the Stopwatch

The stopwatch measures elapsed time, split times, and two ﬁ nishes.

To enter the Stopwatch Mode

UseD to select the Stopwatch Mode as shown on page E-8. The mode dial hand will move to

Seconds

1/100 second

Minutes

STW

To perform an elapsed time operation

Start Stop (Restart) (Stop) Reset

E E

To pause at a split time

A E

Split release Stop Reset

appears in

E-40

Hours

Start Split

SPL

( the lower display.)

Using the Countdown Timer

The countdown timer can be conﬁ gured to start at a preset time and sound an alarm when the end of the countdown is reached.

To enter the Countdown Timer Mode

UseD to select the Countdown Timer Mode as shown on page E-8.

• The mode dial hand will move to

To specify the countdown start time

Countdown time

Countdown time (Minutes, seconds)

(Minutes, seconds)

TMR

and the upper display will show the current countdown time.

1. Enter the Countdown Timer Mode.

• If a countdow n is in progres s (indicated by th e seconds c ounting

down), press E to stop it and th en press A to reset to the cur rent countdown start time.

• If a countdow n is paused, pre ss A to reset to the cur rent

countdown start time.

2. Hold down A until the minute setting of the current countdown start time starts to ﬂ ash. This is the setting screen.

3. Use E (+) and B (–) to change the minute.

• To set the starti ng value of the co untdown ti me to 60 minu tes, set

60'00.

4. Press A to exit the setting screen.

To measure two ﬁ nishes

Start Split

Note

• The Stopwatch Mode can indicate elapsed time up to 23 hours, 59 minutes, 59.99 seconds.

• The digital meter shows the 1/10 seconds count.

• Once started, stopwatch timing continues until you press E to stop it, even if you exit the Stopwatch

Mode to another mode and even if timing reaches the stopwatch limit deﬁ ned above.

• Exiting the Stopwatch Mode while a split time is frozen on the display clears the split time.

First runner ﬁ nishes.

SPL

(

appears in the lower display.) Display time of ﬁ rst runner

E A

Stop

Second runner ﬁ nishes.

Split release

Display time of second runner

Reset

To perform a countdown timer operation

Start Stop (Restart) (Stop) Reset

• The digital meter shows the seconds count.

• Before starting a countdown timer operation, check to make sure that a countdown operation is not

already in progress (indicated by the seconds counting down). If it is, press E to stop it and then to reset to the countdown start time.

• An alarm sounds for ten seconds when the end of the countdown is reached. This alarm will sound in

all modes. The countdown time is reset to its starting value automatically after the alarm sounds.

To stop the alarm

Press any button.

E E

E-41

E-42

Using the Alarm

You can set ﬁ ve independent daily alarms. When an alarm is turned on, an alarm will sound for about 10 seconds each day when the time in the Timekeeping Mode reaches the preset alarm time. This is true even if the watch is not in the Timekeeping Mode. One of the daily alarms is a snooze alarm. The snooze alarm will sound every ﬁ ve minutes up to seven times or until it is turned off. You can also turn on an Hourly Time Signal, which will cause the watch to beep twice every hour on the hour.

To enter the Alarm Mode

Alarm time

Alarm time (Hour : Minutes)

(Hour : Minutes)

Alarm number or SIG

E-44

To turn an alarm and the Hourly Time Signal on and off

Hourly time signal

Hourly time signal on indicator

on indicator

Alarm on indicator

Snooze alarm indicator

To stop the alarm

Press any button.

Note

• The snooze alarm sounds up to seven times at intervals of about ﬁ ve minutes.

• Performing any one of the operations below during an ongoing snooze alarm (

will cancel the snooze alarm operation (

- If you turn off the snooze alarm

- If you display the snooze alarm setting screen

- If you display the Timekeeping Mode setting screen

UseD to select the Alarm Mode as shown on page E-8.

• The mode dial hand will move to

currently selected alarm number ( time signal indicator (

• When you enter the Alarm Mode, the data you were viewing when you

last exited the mode appears ﬁ rst.

1. In the Alarm Mode, use E to select an alarm or the Hourly Time

Signal.

2. When the alarm or the Hourly Time Signal you want is selected, press

to turn it on

•

The alarm o n indicator (w hen any alarm i s on), snooze alar m indicator (when the sno oze alarm is on), and t he Hourl y Time Sign al on indica tor (when the Ho urly Time S ignal is on) are sho wn on the low er display in all modes.

SNZ

and off

(on)

will stop ﬂ ashing).

SIG

ALM

, the lower display will show the

AL1

AL4

SNZ

, or

(- -)

), or the hourly

SNZ

indicator ﬂ ashing)

E-43

To set an alarm time

1. In the Alarm Mode, use E to scroll through the alarm screens in the lower display until the one you want to change is shown.

AL1 AL2 AL3

SIG AL5 AL4

2. Hold down A until the hour digits of the alarm setting start to ﬂ ash in the upper display.

• This is the setting screen.

3. Press D to move the ﬂ ashing between the hour and minute settings.

4. While a setting is ﬂ ashing, use E (+) and B (–) to change it.

• When set ting the ala rm time usin g the 12-hou r format, ta ke care to

set the time c orrectly as a .m. (no indicato r) or p.m. (P indicator).

5. Press A to exit the setting screen.

To test the alarm

In the Alarm Mode, hold down E to sound the alarm.

E-45

Illumination

The display of the watch is illuminated 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 enabled (page E-49) for it to operate.

To illuminate the display manually

To change the illumination duration

1. In the Timekeeping Mode, hold down A until

• When you rel ease A (aft er ADJ appears), SET will be ﬂ ashing in t he upper disp lay. This is the

setting m ode.

2. Use D to cycle through the settings on the lower display until the current illumination duration (

LT3

) is shown.

• See the sequ ence in step 2 of t he procedu re under “To chang e the current ti me and date

settings” ( page E-15) for informati on about ho w to scroll throu gh setting s creens.

PressB in any mode (except when a ﬂ ashing setting screen is displayed) to illuminate the display.

• You can use the procedure below to select either 1.5 seconds or 3

seconds as the illumination duration. When you press B, the display will remain illuminated for about 1.5 seconds or 3 seconds, depending on the current illumination duration setting.

• The above operation illuminates the display regardless of whether the

auto light switch is enabled or disabled.

ADJ

appears in the lower display.

LT1

E-46

E-47

Operation Guide 5415

3. Press E to toggle the illumination duration between three seconds (

LT1

(

displayed).

4. After all of the settings are the way you want, press A to exit the setting screen.

About the Auto Light Switch

While the Auto Light Switch is enabled, illumination will turn on whenever you position your wrist as described below in any mode.

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.

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

•

on 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 trafﬁ c accident and serious personal injury.

E-48

Auto light switch precautions

• 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 after the preset illumination duration (page E-47), 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 towards your face 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.

• 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.

LT3

displayed) and 1.5 seconds

Wear the watch on the

Wear the watch on the outside of your wrist

outside of your wrist

More than

More than 40°

40°

Note

• The auto light switch is always disabled, regardless of its enabled/disabled setting, when any one of

the following conditions exists.

While an alarm is sounding While the watch is in the Digital Compass Mode

• If you have Auto Light enabled, display illumination may be delayed if you angle the watch towards

your face while a temperature reading operation is being performed.

To enable or disable the auto light switch

Auto light switch

Auto light switch enabled indicator

enabled indicator

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.

In the Timekeeping Mode, hold down B for about three seconds to toggle the auto light switch between enabled (LT shown in the lower display) and disabled (LT not displayed).

• The auto light switch enabled indicator (LT) is on the lower display in

all modes while the auto light switch is turned enabled.

• The auto light switch remains enabled for about six hours. After that

disables automatically.

E-49

Button Operation Tone

When enabled, the button operation tone sounds any time you press one of the watch’s buttons. You can enable or disable the button operation tone as desired.

• Even if you disable the button operation tone, the alarm, Hourly Time Signal, and Countdown Timer

Mode alarm all operate normally.

To enable or disable the button operation tone

1. In the Timekeeping Mode, hold down A until

• When you rele ase A (aft er ADJ appears), SET will be ﬂ ashing in t he upper disp lay.

3. Press E to toggle the button operation tone setting between enabled (

4. After the setting is the way you want, press A to exit the setting screen.

Note

• The mute indi cator is displaye d in all modes w hen the but ton operati on tone is disa bled.

2. Use D to cycle through settings on the lower display until the current button operation tone setting (

• See the seq uence in step 2 o f the proced ure under “To chan ge the

ADJ

appears in the lower display.

MUTE

KEY

) is shown.

current time a nd date sett ings” (page E-15) for infor mation ab out how to scroll thro ugh settin g screens.

KEY

) and disabled (

MUTE

E-50

Low Battery Indication

A low battery indicator appears on the display when battery power is low. Have the batteries replaced as soon as possible.

Note

• For inform ation abo ut batter y life guideli nes and suppo rted bat tery ty pes, see the p roduct

speciﬁ cations.

S ee “Spec iﬁ cation s” (page E-57 ).

The conditions below are in effect while the low battery indicator is ﬂ ashing.

Low battery indicatorLow battery indicator

Note

• Sequenti ally or repeate dly perfo rming sen sor, light, alarm , and other po wer intensive o peration s

over a shor t period can c ause a sudde n drop in batte ry power, which w ill make the lo w batter y indicator ﬂ ash . Even though th e low batter y indicator m ay disappear a nd watch functi ons may become re -enab led, batter y replace ment is reco mmended.

E-52

Batteries

The low battery indicator is ﬂ ashing on the digital display.

■

Low battery indicatorLow battery indicator

• All hands are s topped.

• Except for th e low batter y indicator, all oth er display fun ctions are

disabled.

• Watch tones are di sabled.

• Display illum ination is d isabled.

• Watch operatio ns are disabl ed.

The watch’s battery power is low. Have the batteries replaced as soon as possible.

See “Low Battery Indication” (page E-52).

Mute indicatorMute indicator

Troubleshooting

Time Setting

The current time setting is off by a couple of hours.

■

Your Home City setting may be wrong (page E-13). Check your Home City setting and correct it, if necessary.

The current time setting is off by one hour.

■

You may need to change your Home City’s standard time/daylight saving time (DST) setting. Use the procedure under “To change the current time and date settings” (page E-15) to change the standard time/ daylight saving time (DST) setting.

World Time Mode

The time for my World Time City is off in the World Time Mode.

■

This could be due to incorrect switching between standard time and daylight saving time. See “To conﬁ gure World Time City and summer time settings” (page E-38) for more information.

Bearing and Temperature Readings

The temperature unit setting won’t change.

■

The temperature unit setting is always Celsius (°C) whenever this case, the setting cannot be changed.

“ERR” appears while a sensor operation is in progress.

■

Subjecting the watch to strong impact can cause sensor malfunction or improper contact of internal circuitry. When this happens, disabled.

ERR

(error) will appear on the lower display and sensor operations will be

Digital Compass

Operation

TOKYO

is selected as the Home City. In

Temperature

Measurement

E-51

E-53

E-54

ERR

• If

appears while a measurement operation is being performed in a sensor mode, restart the measurement. If the sensor.

ERR

• If

sensor.

ERR

appears on the lower display again, it can mean there is something wrong with

keeps appearing during measurement, it could mean there is a problem with the applicable

E-55

Operation Guide 5415

“ERR” appears on the lower display following bidirectional calibration.

■

- - -

appears and then changes to

wrong with the sensor.

ERR

• If

disappears after about one second, try performing the calibration again.

ERR

• If

keeps appearing, contact your original dealer or nearest authorized CASIO distributor to have

the watch checked.

Whenever you have a sensor malfunction, take the watch to your original dealer or nearest authorized CASIO distributor as soon as possible.

Incorrect direction readings.

■

• Incorrect bidirectional calibration. Perform bidirectional calibration (page E-24).

• Nearby source of strong magnetism, such as a household appliance, a large steel bridge, a steel

beam, overhead wires, etc., or an attempt to perform direction measurement on a train, boat, etc. Move away from large metal objects and try again.

Different results produced by direction readings taken at the same location.

■

Magnetism generated by nearby high-tension wires is interfering with detection of terrestrial magnetism. Move away from the high-tension wires and try again.

Problems taking direction readings indoors.

■

A TV, personal computer, speakers, or some other object is interfering with terrestrial magnetism readings. Move away from the object causing the interference or take the direction reading outdoors. Indoor direction readings are particularly difﬁ cult inside ferro-concrete structures. Remember that you will not be able to take direction readings inside of trains, airplanes, etc.

ERR

(error) on the calibration screen, it means that there is something

Speciﬁ cations

Accuracy at normal temperature: Digital Timekeeping:

Time format: 12-hour and 24-hour Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099 Other: Two display formats (month, day or time); Home City code (can be assigned one of 48 city

codes); standard time / daylight saving time (summer time)

Analog Timekeeping: Digital Compass:

north; Calibration (bidirectional); Magnetic declination correction; Bearing Memory

Thermometer:

Measurement and display range: –10.0°C to 60.0°C (or 14.0°F to 140.0°F) Display unit: 0.1°C (or 0.2°F) Measurement timing: Every ﬁ ve seconds in the Thermometer Mode Other: Calibration; Selectable measurement unit

Bearing Sensor Precision:

Direction: Within ±15°

Values are guaranteed for a temperature range of –10°C to 40°C (14°F to 104°F).

North indicated by second hand: Error within ±20°.

Temperature Sensor Precision:

±2°C (±3.6°F) in range of –10°C to 60°C (14.0°F to 140.0°F)

World Time:

Other: daylight saving time/standard time

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

20 seconds continuous readings; 16 directions; Angle value 0° to 359°; Hand indication of

48 cities (31 time zones)+ UTC; Home City/World Time City swapping

±15 seconds a month

Hour, minutes (hand moves every 10 seconds), seconds

E-56

Stopwatch:

Measuring unit: 1/100 second Measuring capacity: 23:59' 59.99" Measuring modes: Elapsed time, split time, two ﬁ nishes

Countdown Timer:

Measuring unit: 1 second Countdown range: 60 minutes Setting ranges: Countdown start time (1 to 60 minutes, 1-minute increments)

Alarms:

5 daily alarms (with 1 snooze alarm); Hourly Time Signal

Illumination:

Other: Battery:

E-58

LED light; Selectable illumination duration (approximately 1.5 seconds or 3 seconds);

Auto Light Switch

Button operation tone on/off, Low battery alert

Two silver oxide batteries (Type: SR927W)

Approximate battery operating time: 2 years under the following conditions:

• 1 illumination operation (1.5 seconds) per day

• Alarm: 10 seconds/day

• Direction readings: 20 times/month

• Temperature readings: Once/week

Frequent use of illumination runs down the battery. Particular care is required when using the auto light switch (page E-48).

City Code Table

City

City name

Code

PPG PAGO PAGO –11

HNL HONOLULU –10

ANC ANCHORAGE –9

YVR VANCOUVER

LAX LOS ANGELES

YEA EDMONTON

DEN DENVER

MEX MEXICO CITY

CHI CHICAGO

NYC NEW YORK –5

SCL SANTIAGO

YHZ HALIFAX

YYT ST. JOHN’S –3.5

RIO RIO DE JANEIRO –3

FEN F. DE NORONHA –2

RAI PRAIA –1

L-2

UTC Offset/

GMT Differential

–8

–7

–6

–4

City

City name

Code

UTC

LON LONDON

MAD MADRID

PAR PARIS

ROM ROME

BER BERLIN

STO STOCKHOLM

ATH ATHENS

JRS JERUSALEM

MOW* MOSCOW

JED JEDDAH

THR TEHRAN +3.5

DXB DUBAI +4

KBL KABUL +4.5

KHI KARACHI +5

UTC Offset/

GMT Differential

E-57

L-1

City

City name

Code

DEL DELHI +5.5

KTM KATHMANDU +5.75

0LIS LISBON

+2CAI CAIRO

DAC DHAKA +6

RGN YANGON +6.5

BKK BANGKOK +7

SIN SINGAPORE

HKG HONG KONG

BJS BEIJING

TPE TAIPEI

SEL SEOUL

TYO TOKYO

ADL ADELAIDE +9.5

GUM GUAM

SYD SYDNEY

NOU NOUMEA +11

WLG WELLINGTON +12

UTC Offset/

GMT Differential

+10

* As of December 2013, the ofﬁ cial UTC offset

for Moscow, Russia (MOW) has been changed from +3 to +4, but this watch still uses an offset of +3 (the old offset) for MOW. Because of this, you should leave the summer time setting turned on (which advances the time by one hour) for the MOW time.

• This table shows the city codes of this watch.

• The rules governing global times (UTC offset

and GMT differential) and summer time are determined by each individual country.

L-3

Casio 5415 Operation Guide

Specifications and Main Features

Frequently Asked Questions

User Manual