Casio 5369 (MTG) User manual

Operation Guide 5369 (MTG)
E
ENGLISH
Congratulations upon your selection of this CASIO watch.
xNote 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.
This watch does not have a city code that corresponds to the UTC offset of –3.5 hours. Because of
this, the radio-controlled atomic timekeeping function will not display the correct time for Newfoundland,
Canada.
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-7
Contents
E-1 About This Manual
E-2 Using the Crown
E-5 Things to check before using the watch
E-10 Charging the Watch
E-13 To recover from the sleep state
E-14 Radio Controlled Atomic Timekeeping
E-16 To get ready for a receive operation
E-18 To perform manual receive
E-19 To check the result of the latest receive operation
E-19 To turn auto receive on and off
E-21 Mode Reference Guide
E-23 Timekeeping (Dual Time Mode)
E-24 Configuring Home City Settings
E-24 To configure Home City settings
E-27 To switch between standard time and summer time manually
E-28 Configuring Current Time and Date Settings Manually
E-28 To change the current time and date setting manually
E-6
3. Set the current time.
xTo set the time using a time calibration signal
See “To get ready for a receive operation” (page E-16).
xTo set the time manually
See “Configuring Current Time and Date Settings Manually” (page E-28).
The watch is now ready for use.
xFor details about the watch’s radio controlled timekeeping feature, see “Radio Controlled Atomic
Timekeeping” (page E-14).
E-5
Things to check before using the watch
1. Observe the movement of the
x
Second Hand.
Is the
x
Second Hand moving smoothly at one-second intervals?
Is the
x
Second Hand moving at two-second
intervals or is it stopped completely?
Go to step 2.
The watch is charged. For details about
charging, see “Charging the Watch”
(page E-10).
Power is low. Charge the watch by placing it in a
location where it is exposed to light. For details,
see “Charging the Watch” (page E-10).
NO
YES
YES
NEXT
2. Check the Home City.
Use the procedure under “To configure Home City settings” (page E-24) to configure your Home City.
Important!
xProper time calibration signal reception depends on correct Home City, time, and date settings in the
Dual Time Mode. Make sure you configure these settings correctly.
E-4
To start HS1 high-speed movement
While the crown is pulled out, rotate it rapidly three turns away from you (for
forward movement) or towards you (for reverse movement). High-speed
movement will continue even if you release the crown.
To start HS2 high-speed movement
While HS1 high-speed movement is progress, again rotate the crown rapidly
three turns in the same direction as the current HS1 movement (away from you
for forward movement or towards you for reverse movement).
To stop high-speed movement
Rotate the crown in the direction that is opposite that of the current high-speed
movement or press any button.
Important!
xLeaving the crown pulled out for more than two minutes (approximately 30 minutes in the case of hand
home position adjustment) without performing any operation will automatically cause crown operations
to become disabled. If this happens, press the crown back in, pull it out, and then start the operation
over again.
E-3
Crown Operations
The crown can be pulled out to one of two (click) positions. Never apply undue force when pulling out the
crown.
Important!
xIn order to ensure full water resistance and to prevent damage due to impact, make sure that the crown
is normally pushed in fully when using the watch.
xWhen pulling out the crown, avoid using undue force, which creates the risk of personal injury to your
fingers and fingernails, and of watch malfunction.
First click Second click
High-speed Movement
When setting a time or when performing home position adjustment (page E-45), you can move the hands
either forward or back at high speed. There are two high-speed levels: HS1 and HS2 (faster than HS1).
E-2
Using the Crown
This watch has a lock-type crown.
Important!
xYou should normally have the crown locked during normal daily use. Leaving the crown unlocked
creates the risk of unintended operations or even damage due to impact.
To lock the crown
1. Push the crown back in.
xNote that attempting to lock the crown when it is not pushed in can cause
unexpected watch operation.
2. Rotate the crown Mark 3 is aligned with Mark 1.
3. While pushing in on the crown (a), rotate it to the right (b) until it stops and Mark 3
is aligned with Mark 2.
4. Gently pull on the crown to make sure it is securely locked and does not come
out.
To unlock the crown
Rotate the crown so Mark 3 aligns with Mark 1.
Mark 1
Mark 3
W
V
Mark 2
E-1
About This Manual
Operations are performed using the watch’s crown, and the three buttons
indicated by the letters A, Band Cin this manual.
Hand Functions
z
Hour Hand
x
Second Hand
c
Minute Hand
v
Hour Hand (24-hour)
b
Small Minute Hand
n
Small Hour Hand
m
Small Hour Hand (24-hour)
,
Lower Dial Hand
.
Day Indicator
This User’s Guide uses numbers shown above to identify watch hands and
indicators.
Hand and Date Indicator Movement
xThe movement of the
x
Second Hand and
c
Minute Hand of this watch are coordinated. To change
the
c
Minute Hand setting, you will need to move the
x
Second Hand.
x
.
Day Indicator movement is also coordinated with
z
Hour Hand movement. To change the
.
Day
Indicator setting, you will need to move the
z
Hour Hand.
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Operation Guide 5369 (MTG)
E-15
Approximate Reception Ranges
Japanese Signals Chinese Signal
Fukushima
500 kilometers
1,000 kilometers
Fukuoka/
Saga
1,500 kilometers
Changchun500 kilometers
Beijing
Shangqiu
Shanghai
Chengdu
Hong Kong
UK and German Signals North American Signal
Anthorn
500 kilometers
1,500 kilometers
Mainflingen
The Anthorn signal is receivable
within this area.
2,000 miles
(3,000 kilometers)
600 miles
(1,000 kilometers)
Fort Collins
E-14
Radio Controlled Atomic Timekeeping
This watch receives a time calibration signal and updates its time setting accordingly. However, when
using the watch outside of areas covered by time calibration signals, you will have to adjust the settings
manually as required. See “Configuring Current Time and Date Settings Manually” (page E-28) for more
information.
This section explains how the watch updates its time settings when the city code selected as the Home
City is in Japan, North America, Europe, or China, and is one that supports time calibration signal
reception.
If your Home City Code setting is this: The watch can receive the signal from the transmitter
located here:
LONDON (LON), PARIS (PAR), ATHENS (ATH) Anthorn (England), Mainflingen (Germany)
HONG KONG (HKG) Shangqiu City (China)
TOKYO (TYO) Fukushima (Japan), Fukuoka/Saga (Japan)
NEW YORK (NYC), CHICAGO (CHI),
DENVER (DEN), LOS ANGELES (LAX),
ANCHORAGE (ANC), HONOLULU (HNL)
Fort Collins, Colorado (United States)
Important!
xThe areas covered by HONOLULU (HNL) and ANCHORAGE (ANC) are quite far from the calibration
signal transmitters, so certain conditions may cause reception problems.
E-13
xFor details about the operating time and daily operating conditions, see the “Power Supply” section of
the Specifications (page E-55).
Power Saving
Power Saving enters a sleep state automatically whenever the watch is left for a certain period in an area
where it is dark. The table below shows how watch functions are affected by Power Saving.
Elapsed Time in Dark Operation
Approximately 1 week xAll hands stopped at 12 o’clock
xInternal timekeeping maintained
To recover from the sleep state
Move the watch to a well-lit area or press any button.
E-12
xWhen power drops to Level 3, all settings (including timekeeping) will be cleared. Recharging the
battery will reset all settings to their initial factory defaults, so you will need to configure settings again.
xWhen the watch is at Level 3, exposing it to light for a while will cause the
x
Second Hand to move to
the position of second 57. This indicates that charging has started.
Power Recovery Mode
The watch is designed to go into a power recovery mode that stops hand operation temporarily whenever
power suddenly drops below a certain level due to continuous signal reception, or overuse of the alarm
tone over a short period or other operations over a short period. Note that all operations are disabled
while the watch is in the power recovery mode.
The hands will move to the correct positions and the watch will resume normal operation after power
recovers. Putting the watch in a location where it is exposed to light will help power to recover sooner.
Charging Times
Exposure Level (Brightness) Daily
Operation *1
Level Change *2
Level 3 Level 2 Level 1
Outdoor sunlight (50,000 lux) 8 minutes 2 hours 23 hours
Window sunlight (10,000 lux) 30 minutes 6 hours 86 hours
Window sunlight on cloudy day (5,000 lux) 48 minutes 9 hours 139 hours
Indoor fluorescent lighting (500 lux) 8 hours 94 hours – – –
*1 Approximate exposure each day to generate power for normal daily operation.
*2 Approximate exposure to take power up one level.
xThe above times are for reference only. Actual times depend on lighting conditions.
E-11
Important!
xKeep the watch in an area normally exposed to bright light when storing it for long periods. This helps
to ensure that power does not run down.
xStoring 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 power to run down. Make sure that the watch is exposed to
bright light whenever possible.
Power Levels
You can get an idea of the watch’s power level by observing the movement of
the
x
Second Hand.
xIf the
x
Second Hand is moving normally at one-second intervals, power is
at Level 1.
xIf the
x
Second Hand is moving at two-second intervals, power is at Level 2,
which is quite low (Low battery alert). Expose the watch to light as soon as
possible so it can charge.
Level Hand Movement Function Status
1 Normal. All functions enabled
2x
x
Second Hand moves at
two-second intervals.
Beeper, time calibration signal
reception, countdown timer
operation, and home position
adjustment disabled
3All hands stopped at 12 o’clock.
.
.
Day Indicator between 31 and 1.All functions disabled
Moves at two-second
intervals.
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E-10
Charging the Watch
The face of the watch is a solar panel that generates power from light. The generated power charges a
built-in rechargeable battery, which powers watch operations. The watch charges whenever it is exposed
to light.
Charging Guide
Whenever you are not
wearing the watch, be sure
to leave it in a location where
it is exposed to light.
xBest charging
performance is achieved
by exposing the watch to
light that is as strong as
possible.
When wearing the watch, makes
sure that its face is not blocked
from light by the sleeve of your
clothing.
xThe watch may enter a sleep
state (page E-13) if its face is
blocked by your sleeve even
only partially.
Warning!
Leaving the watch in bright light for charging 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.
xOn the dashboard of a car parked in direct sunlight
xToo close to an incandescent lamp
xUnder direct sunlight
E-9
E-49 Troubleshooting
E-54 Specifications
E-8
E-32 Checking the Current Time in a Different Time Zone
E-32 To enter the Dual Time Mode
E-32 To view the time in another time zone
E-34 To swap your Home City and World Time City
E-35 Using the Stopwatch
E-35 To enter the Stopwatch Mode
E-36 To measure elapsed time
E-36 To measure split times
E-37 To set the Auto Start Time
E-38 To start an Auto Start operation
E-39 Using the Countdown Timer
E-39 To enter the Countdown Timer Mode
E-40 To specify the countdown start time
E-40 To perform a countdown timer operation
E-41 To stop the alarm
E-42 Using the Alarm
E-42 To enter the Alarm Mode
E-43 To change the alarm time setting
E-44 To turn the alarm on or off
E-44 To stop the alarm
E-45 Adjusting the Hand and Day Home Positions
E-47 To adjust the hand and day home positions

Operation Guide 5369 (MTG)
E-23
Timekeeping (Dual Time Mode)
To enter the Dual Time Mode, hold down Cat least two seconds.
Hand Functions
z
z Hour Hand
x
x Second Hand
c
c Minute Hand
v
v Hour Hand (24-hour)
b
b Small Minute Hand: World Time minute hand
n
n Small Hour Hand: World Time hour hand
m
m Small Hour Hand (24-hour): World Time 24-hour hand
,
, Lower Dial Hand: Indicates the current day of the week.
.
. Day Indicator
xPressing Acauses the
x
Second Hand to move to the current Home City
for about one second.
xThe
.
Day Indicator will change gradually between approximately 10 p.m.
and 2 a.m. During this period the number indicating the day will not be
centered in the indicator window.
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E-22

Dual Time Mode Stopwatch Mode
Alarm Mode Countdown Timer Mode
Indicates the day of the
week (SU/MO/TU/WE/TH/
FR/SA).
Indicates the 1/20 (0.05)
second count.
Indicates ON or OFF. Indicates TR.
C
C
C
C
xYou can return to the Dual Time Mode from any other mode by holding down Cfor at least two
seconds.
E-21
Mode Reference Guide
Your watch has four “modes”. The mode you should select depends on what you want to do.
Use Cto cycle between modes.
To do this: Enter this mode: See:
xView the current time and date in your Home City
xConfigure Home City and summer time (DST) settings
xReceive the time calibration signal automatically
xManually adjust the time or date setting
Any Mode E-23
xView the current time in one of 29 other cities around the globe
xPerform manual time calibration signal reception
xView reception results
xTurn auto time calibration signal reception on or off
xConfigure World Time City and summer time settings
xSwap the Home City and World Time City
Dual Time Mode E-23
xUse the stopwatch to measure elapsed time
xUse Auto Start Stopwatch Mode E-35
Use the countdown timer Countdown Timer Mode E-39
Set an alarm time Alarm Mode E-42
E-20
4. Rotate the crown to move the
x
Second Hand to the setting you want.
xTo turn on auto receive, select Y(YES).
xTo turn off auto receive, select N (NO).
5. Push the crown back in to return to the Dual Time Mode.
Radio-controlled Atomic Timekeeping Precautions
xStrong electrostatic charge can result in the wrong time setting.
xEven if a receive operation is successful, certain conditions can cause the time setting to be off by up
to one second.
xThe watch is designed to update the date and day of the week automatically for the period from
January 1, 2000 to December 31, 2099. Updating of the date by signal reception will no longer be
performed starting from January 1, 2100.
xIf you are in an area where signal reception is not possible, the watch keeps time with the precision
noted in “Specifications” (page E-54).
xThe receive operation is disabled under any of the following conditions.
−While power is at Level 2 or Level 3 (page E-11)
−While the watch is in the power recovery mode (page E-12)
−While the watch is in the sleep state (power saving, page E-13)
xA receive operation is cancelled if an alarm sounds while it is being performed.
E-19
To check the result of the latest receive operation
1. Hold down Cfor at least two seconds to enter the Dual Time Mode (page
E-23).
2. Press B.
xThe
x
Second Hand will move to Y (YES) if the latest receive operation
was successful, or N (NO) if it was not. After about ten seconds, regular
timekeeping will resume.
xYou can return to the Dual Time Mode manually by pressing any button
while the
x
Second Hand is pointing to Y(YES) or N(NO).
Note
xThe
x
Second Hand will indicate N (NO) if you have adjusted the time or
date setting manually since the latest receive operation.
To turn auto receive on and off
1. Hold down Cfor at least two seconds to enter the Dual Time Mode (page
E-23).
2. Press B.
3. During the 10 seconds that the
x
Second Hand is pointing to the latest
receive operation result (see above), pull out the crown to the first click.
xThis will cause the
x
Second Hand to point to either Y(YES) or N(NO),
which indicates the current on/off setting.
xLeaving the crown pulled out for more than two minutes without
performing any operation will automatically cause crown operations to
become disabled. If this happens, press the crown back in, pull it out,
and then start the operation over again.

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N (NO)
Y (YES)

@
N (NO)
Y (YES)
E-18
To perform manual receive
1. Hold down Cfor at least two seconds to enter the Dual Time Mode (page E-23).
2. Hold down Bfor at least two seconds.
xThe
x
Second Hand will first indicate the last receive results as either Y(YES) or N(NO), and then
move to RC (R) (Receive in progress) to indicate that signal reception has started.
3. The watch’s time setting is adjusted automatically whenever a receive
operation is successful.
Note
xThe current time indication may become out of sync by two or three minutes
while a receive operation is in progress. Correct indication will resume after
the receive operation is complete. If you need to produce a correct time
reading immediately, press any button to stop the receive operation.
xIf reception fails for some reason, check the surrounding area and eliminate
possible causes for failure and then try again. See “To get ready for a
receive operation” (page E-16).
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@
N (NO)
Y (YES)
E-17
xSignal reception may be difficult or even impossible under the conditions described below.
Inside or among
buildings
Inside a vehicle Near household
appliances,
office
equipment, or a
mobile phone
Near a
construction
site, airport, or
other sources of
electrical noise
Near high-
tension power
lines
Among
or behind
mountains
2. What you should do next depends on whether you are using Auto Receive or Manual Receive.
xAuto Receive: Leave the watch over night in the location you selected in step 1.
xManual Receive: Perform the operation under “To perform manual receive” on page E-18.
Important!
xWith Auto Receive, the watch performs the receive operation each day automatically up to six times
(up to five times for the Chinese calibration signal) between the hours of midnight and 5 a.m. When any
receive operation is successful, none of the other receive operations for that day are performed.
xCalibration signal reception is disabled in the following cases.
−While an elapsed time operation is in progress in the Stopwatch Mode
−While a timer operation is in progress
−While Auto Receive is turned off
−While the crown is pulled out
E-16
xSignal reception may not be possible at the distances noted below during certain times of the year or
day. Radio interference may also cause problems with reception.
−Mainflingen (Germany) or Anthorn (England) transmitters: 500 kilometers (310 miles)
−Fort Collins (United States) transmitter: 600 miles (1,000 kilometers)
−Fukushima or Fukuoka/Saga (Japan) transmitters: 500 kilometers (310 miles)
−Shangqiu (China) transmitter: 500 kilometers (310 miles)
xAs of December 2012, China does not use Daylight Saving Time (DST). If China does go to the
Daylight Saving Time system in the future, some functions of this watch may no longer operate
correctly for the China time zones.
xUsing this watch in a country covered by a time calibration signal that is different from the countries it
supports may result in incorrect time indication due to local application of summer time, etc.
To get ready for a receive operation
1. Place the watch in a location where signal reception is good.
12 o’clock
or
xPosition the watch as shown in the nearby illustration,
with 12 o’clock pointed towards a window. Make sure
there are no metal objects nearby.
xSignal reception normally is better at night.
xThe receive operation takes from two to 10 minutes, but
in some cases it can take as long as 20 minutes. Take
care that you do not perform any button operation or
move the watch during this time.

Operation Guide 5369 (MTG)
E-31
9. Press C. This will enter the year setting mode.
xThe
n
Small Hour Hand indicates the number that represents the
tens digit of the year and the
b
Small Minute Hand indicates the
number that represents the ones digit.
10. Rotate the crown to adjust the year setting.
11. After the settings are the way you want, push the crown back in to
return to the mode you started from in step 1.
xThis causes timekeeping to resume with the
x
Second Hand starting
from 12 o’clock.
xThe day of the week indicated by the
,
Lower Dial Hand changes
automatically in accordance with the date (year, month, and day).
Note
xThe 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 after you have the watch’s
rechargeable battery replaced or after power drops to Level 3.
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Setting the year (ones digit)
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Setting the year (tens digit)
E-30
7. Press Cto enter the month setting mode.
xThe
x
Second Hand will move to the currently selected
month.
8. Rotate the crown to adjust the month setting.
@
Dec
Nov
Feb
Mar
Apr
Oct
Sep
Aug
Jan
Jul May
Jun
Setting the month
E-29
Home City/DST Minute Hour/Day
Year
C
Month
C
C
C
C
4. Rotate the crown to adjust the minute setting.
xA high-speed movement feature (one full cycle maximum) is available when adjusting the hands.
See “Crown Operations” (page E-3).
5. Press C.
xThe
z
Hour Hand will move slightly left and right to indicate the hour and day setting mode.
6. Rotate the crown to change the current hour and day settings.
xKeep rotating the crown to move the
z
Hour Hand until the
.
Day Indicator shows the day you
want.
xThe
.
Day Indicator will change gradually between 10 p.m. and 2 a.m. During this period the
number indicating the day will not be centered in the indicator window.
xWhile changing the hour setting, you can determine whether the setting is a.m. or p.m. by watching
the
.
Day Indicator as the
z
Hour Hand passes 12 o’clock.
xA high-speed movement feature (one full cycle maximum) is available when adjusting the hands.
See “Crown Operations” (page E-3).
E-28
Configuring Current Time and Date Settings Manually
You can configure current time and date settings manually when the watch is unable to receive a time
calibration signal.
To change the current time and date setting manually
1. In any mode, pull out the crown to the second click.
xThis will cause the
x
Second Hand to move to the city code of
the currently selected Home City.
xLeaving the crown pulled out for more than two minutes without
performing any operation will automatically cause crown
operations to become disabled. If this happens, press the
crown back in, pull it out, and then start the operation over
again.
2. Change the Home City setting, if you want.
xTo change the Home City setting, perform step 2 under “To
configure Home City settings” (page E-24).
3. Hold down Cfor about one second. This will enter the time and
date setting mode.
xThe watch will beep and the
x
Second Hand will move to
12 o’clock.
xIn the following steps, each press of Ccycles between settings
as shown below.

@
TOKYO (TYO)


B @
E-27
To switch between standard time and summer time manually
1. Perform steps 1 and 2 under “To configure Home City settings” (page E-24).
xDisplaying the Home City Settings screen will cause the
,
Lower Dial
Hand to move to AT (AUTO) (auto switching), STD (standard time), or DST
(daylight saving time).
AT (AUTO) The watch automatically switches between standard time and
daylight saving time in accordance with its calendar.
STD The watch always shows standard time.
DST The watch always shows daylight saving time.
2. Hold down Afor about one second to cycle through the summer time
settings as shown below.
AA
AT (AUTO) STD DST
A
3. After the setting is way you want, push the crown back in.

E-26
STD/DST Switching
You can select summer time or standard time independently for each city. The initial default setting for all
cities is AT (AUTO).
Normally you should use the AT (AUTO) setting because it automatically switches between summer time
and standard time. You should change the setting to STD (standard time) or DST (summer time) in the
following cases.
−When using the watch in a city not included in the City Code Table
−When the switching dates in your location are different from those shown in the City Code Table
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.
xNote that you cannot switch between STD (standard time) and DST (daylight saving time) while UTC*
is selected as your Home City.
*Coordinated Universal Time, the world-wide scientific standard of timekeeping. The reference point for
UTC is Greenwich, England.
E-25
2. Rotate the crown to move the
x
Second Hand to the city code you
want to select as your Home City.
xEach time you select a city code, the
z
Hour Hand,
c
Minute
Hand and
.
Day Indicator move to the current time and date
for that city code.
xWhenever you move the
x
Second Hand to 12 o’clock while
selecting a city code, it will automatically perform one full
revolution and stop at 12 o’clock from the opposite direction.
xThe
,
Lower Dial Hand shows the summer time setting for the
currently selected Home City.
3. Push the crown back in to return to the mode you started from in
step 1.

B +
@
E-24
Configuring Home City Settings
The Home City is location where you will normally use the watch. You can choose from a selection of city
codes that represent 29 cities around the globe.
xFor information about specifying a World Time City, see “Checking the Current Time in a Different Time
Zone” (page E-32).
To configure Home City settings
Note
xThis watch does not have a city code that corresponds to
Newfoundland.
1. In any mode, pull out the crown to the second click.
xThis will cause the
x
Second Hand to move to the city code of
the currently selected Home City.
xThis indicates the city code setting mode.
xLeaving the crown pulled out for more than two minutes without
performing any operation will automatically cause crown
operations to become disabled. If this happens, press the
crown back in, pull it out, and then start the operation over
again.
xFor details about city codes, see the “City Code Table” at the
back of this manual.

@
TOKYO (TYO)

Operation Guide 5369 (MTG)
E-39
Using the Countdown Timer
The countdown timer can be configured within a range of one minute to 120 minutes. An alarm sounds for
about 10 seconds when the timer reaches zero.
Hand Functions
z
z Hour Hand
x
x Second Hand
c
c Minute Hand
v
v Hour Hand (24-hour)
b
b Small Minute Hand: Indicates countdown seconds.
n
n Small Hour Hand: Indicates countdown minutes
(1 revolution = 60 minutes).
m
m Small Hour Hand (24-hour): Indicates countdown minutes
(1 revolution = 120 minutes).
,
, Lower Dial Hand: Points to TR.
xAll hands move counterclockwise during a countdown.
To enter the Countdown Timer Mode
Refer to the Mode Reference Guide (page E-21).
xEntering the Countdown Timer Mode will cause the
,
Lower Dial Hand to move to TR.
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B + *> @
5 6
E-38
To start an Auto Start operation
1. In the Stopwatch Mode with the elapsed time reset to all zeros, press B.
xThis causes the
b
Small Minute Hand,
n
Small Hour Hand, and
m
Small Hour Hand (24-hour) to
move to the current Auto Start time.
xPress Bto toggle between the normal stopwatch screen and the Auto Start time screen.
2. While the Auto Start time is indicated by the hands, press A.
xThis starts the countdown from the Auto Start time.
xFor information about button operations after the Auto Start starts elapsed time measurement, see
“To measure elapsed time” (page E-36) and “To measure split times” (page E-36).
Note
xTo interrupt the countdown and immediately start the elapsed time operation, press A.
xYou can perform all normal stopwatch button operations after the elapsed time operation starts.
xAuto Start is turned off automatically when you reset the stopwatch to all zeros after the current elapsed
time operation. However, you can recall the last Auto Start time you set by pressing B.
E-37
Auto Start
Auto Start starts a countdown from a specified start time (Auto Start time), and automatically starts
elapsed time measurement when the countdown reaches zero.
To set the Auto Start Time
xYou can specify an Auto Start time within the range of 0 to 119 minutes and 59 seconds.
1. In the Stopwatch Mode, pull out the crown to the first click.
xIf you do not perform any operation with the crown for about two minutes after pulling it out, crown
operations will become disabled and the watch hands will no longer move when you rotate the
crown. If this happens, push the crown back in and then pull it out again.
2. Rotate the crown to specify the Auto Start time seconds setting.
b
b Small Minute Hand: Auto Start seconds
n
n Small Hour Hand: Auto Start minutes (0 to 60)
m
m Small Hour Hand (24-hour): Auto Start minutes (0 to 119)
xYou can use high-speed movement (page E-3) when performing the above
step.
xChanging the seconds setting will also cause the minutes setting to
change.
3. Press C.
4. Rotate the crown to specify the Auto Start time minutes setting.
xYou can use high-speed movement (page E-3) when performing the above
step.
5. Push the crown back in.

*
5 6
E-36
To measure elapsed time
AA B
Start Stop Reset
xPressing Ato restart the stopwatch without resetting it will resume the elapsed time operation from
where it was last stopped.
To measure split times
ABDisplay of normal
measurement returns after
5 seconds.
A B
Start Split Stop Reset
xPressing Bagain while a split time is indicated will cause the hands to jump to a new (current) split
time.
xPressing Awhile a split time is indicated will stop the elapsed time operation, causing the hands to
jump to the stop time.
Note
xThe Stopwatch Mode can indicate elapsed time up to 1 hour, 59 minutes, 59.95 seconds. Elapsed time
measurement will stop automatically when the maximum time is reached.
xThe display illustration on page E-35 shows a stopwatch reading of 20 minutes, 45.10 seconds.
xPressing Bwill not perform a reset operation while the hands are moving to elapsed timekeeping after
you enter the Stopwatch Mode.
xThe
,
Lower Dial Hand indicates the 1/20 (0.05)-second count for the first 30 seconds of a stopwatch
elapsed time operation. The
x
Second Hand will jump to the current value whenever A(Stop) is
pressed.
E-35
Using the Stopwatch
The stopwatch measures elapsed time and split times.
Hand Functions
z
z Hour Hand
x
x Second Hand
c
c Minute Hand
v
v Hour Hand (24-hour)
b
b Small Minute Hand: Indicates the stopwatch seconds count.
n
n Small Hour Hand: Indicates the stopwatch minute count
(1 revolution = 60 minutes).
m
m Small Hour Hand (24-hour): Indicates the stopwatch minute count
(1 revolution = 120 minutes).
,
, Lower Dial Hand: Indicates the 1/20 (0.05)-second count during stopwatch
operation.
To enter the Stopwatch Mode
Refer to the Mode Reference Guide (page E-21).
xEntering the Stopwatch Mode will cause the
,
Lower Dial Hand to move to 0.

B + 6> @
5 *
E-34
Swapping your Home City and World Time City
You can use the procedure below to swap your Home City and World Time City. This capability can come
in handy when you frequently travel between two locations in different time zones.
The following example shows what happens when the Home City and World
Time City are swapped while the Home City originally is TOKYO (TYO) and
the World Time City is NEW YORK (NYC).
Home City World Time City
Before swapping
TOKYO (TYO)
10:08 p.m.
(Standard time)
NEW YORK (NYC)
9:08 a.m.
(Daylight saving time)
After swapping
NEW YORK (NYC)
9:08 a.m.
(Daylight saving time)
TOKYO (TYO)
10:08 p.m.
(Standard time)
To swap your Home City and World Time City
Hold down Afor about three seconds.
xThis will make the World Time City (NEW YORK in this example) your new Home City. At the same
time, it will change your previous Home City to your new World Time City.
xThe x
x
Second Hand will point to the new Home City (NEW YORK in this example) for about one
second.
Note
xIf your current World Time City supports time calibration signal reception, making it your Home City
enables calibration signal reception for that city.

@
E-33
2. Rotate the crown to move the
x
Second Hand to the city code you want to select as the World Time
City.
xEach time you select a city code, the
b
Small Minute Hand,
n
Small Hour Hand, and
m
Small Hour
Hand (24-hour) move to the current time. For details about city codes, see the “City Code Table” at
the back of this manual.
xWhenever you move the
x
Second Hand to 12 o’clock while selecting a city code, it will
automatically perform one full revolution and stop at 12 o’clock from the opposite direction.
xIf you think that the time indicated for the selected World Time City is not correct, it probably means
that there is something wrong with your Home City settings. Use the procedure under “To configure
Home City settings” (page E-24) to correct the Home City settings.
3. Hold down Afor about one second to cycle through the summer time settings as shown below.
xSelecting AT (AUTO) enables automatic switching between standard time and summer time. For
details about the AT (AUTO), STD and DST settings, see “STD/DST Switching” (page E-26).
AA
AT (AUTO) STD DST
A
4. Push the crown back in.
E-32
Checking the Current Time in a Different Time Zone
You can specify one other city from the watch’s 29 time zones as your World Time City. After you do, the
watch will indicate the current time in that city. The currently selected city is called the “World Time City”.
Hands and Indicators
The hands below indicate the current time in the World Time City.
b
b Small Minute Hand
n
n Small Hour Hand
m
m Small Hour Hand (24-hour)
To enter the Dual Time Mode
Refer to the Mode Reference Guide (page E-21).
xEntering the Dual Time Mode will cause the
,
Lower Dial Hand to
move to the current day of the week (SU/MO/TU/WE/TH/FR/SA).
To view the time in another time zone
1. In the Dual Time Mode, pull out the crown to the first click.
xThe
x
Second Hand points to the currently selected World Time city code.
xThe
,
Lower Dial Hand will indicate AT (AUTO), STD (standard time) or DST (daylight saving time),
which indicates the current daylight saving time setting.
xLeaving the crown pulled out for more than two minutes without performing any operation will
automatically cause crown operations to become disabled. If this happens, press the crown back in,
pull it out, and then start the operation over again.

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5

Operation Guide 5369 (MTG)
E-47
To adjust the hand and day home positions
Important!
xYou do not need to perform the procedure in this section if the watch is indicating the time and/or day
correctly.
1. In any mode, pull the crown out to the second click.
2. Hold down Buntil the watch beeps and the
x
Second Hand
moves to 12 o’clock. This takes about five seconds.
xRelease Bwhen the
x
Second Hand gets to 12 o’clock. At this
time the watch will start automatic adjustment of the
x
Second
Hand,
c
Minute Hand, and
z
Hour Hand positions.
xAdjustment is complete when the
x
Second Hand,
c
Minute
Hand, and
z
Hour Hand move to 12 o’clock.
3. Press C.
xThis will cause the
z
Hour Hand and
.
Day Indicator to move.
xWait until the
.
Day Indicator stops at a position halfway
between 31 and 1.
xIf the
.
Day Indicator is not halfway between 31 and 1, rotate
the crown until it is.
xRotating the crown causes the
z
Hour Hand to move in 12-
hour increments, and the
.
Day Indicator to move in half-day
increments.

B +@

E-46
Hand/Day Adjustment Steps
For full details, see the procedure from page E-47 to E-48.
Pull crown out to second click.
x
Second Hand
c
Minute Hand
z
Hour Hand
.
Day Indicator
n
Small Hour Hand
B
C
C
C
(Until
x
Second Hand indicates 12 o’clock)
C
b
Small Minute Hand
,
Lower Dial Hand
Auto Adjustment
Manual Adjustment
xAfter completing adjustment, push the crown back in. Pushing the crown back in part way through
adjustment will return to the mode you started from with any adjustments you made in effect.
E-45
Adjusting the Hand and Day Home Positions
If the watch is exposed to strong magnetism or impact, it can cause its hands and/or the date to go out of
alignment. This can result in incorrect date and/or time indication even though a time calibration signal is
being received.
The watch automatically adjusts the
x
Second Hand,
c
Minute Hand, and
z
Hour Hand positions
periodically. You also can trigger hand position adjustment manually, if you want.
xThe
v
Hour Hand (24-hour) is adjusted simultaneously with the
z
Hour Hand.
If you notice that the
b
Small Minute Hand,
n
Small Hour Hand,
m
Small Hour Hand (24-hour),
,
Lower
Dial Hand, or
.
Day Indicator are not in the correct position, perform manual adjustment.
xThe
m
Small Hour Hand (24-hour) is adjusted simultaneously with the
n
Small Hour Hand.
E-44
5. Push the crown back in.
xThe alarm always works based on the time kept by the watch.
To turn the alarm on or off
In the Alarm Mode, press Ato toggle the alarm between on and off. The
,
Lower Dial Hand will indicate
the current ON/OFF setting.
To stop the alarm
Press any button.
E-43
To change the alarm time setting
1. In the Alarm Mode, pull out the crown to the first click.
xIf you do not perform any operation with the crown for about two minutes after pulling it out, crown
operations will become disabled and the watch hands will no longer move when you rotate the
crown. If this happens, push the crown back in and then pull it out again.
2. Rotate the crown to set the alarm time minute.
xA high-speed movement feature (one full cycle maximum) is available in steps 2 and 4 when
adjusting the hands. See “Crown Operations” (page E-3).
3. Press C.
xThis causes the
n
Small Hour Hand to move.
4. Rotate the crown to set the alarm time hour.
xMovement of the
m
Small Hour Hand (24-hour) is synchronized with movement of the
n
Small Hour
Hand.
xThe 12 o’clock position of the
m
Small Hour Hand (24-hour) indicates 24:00, while the 6 o’clock
position indicates 12:00.
Note
xEach press of the Cbutton toggles between the alarm time minute setting and the hour setting.
C
Minute Hour
xSelecting the minute setting causes the
b
Small Minute Hand to move slightly. Selecting the hour
setting causes the
n
Small Hour Hand to move slightly.
E-42
Using the Alarm
When the alarm is turned on, an alarm will sound for about 10 seconds each day when the current time
kept by the watch reaches the preset alarm time. This is true even if the watch is not in the Alarm Mode.
Hand Functions
z
z Hour Hand
x
x Second Hand
c
c Minute Hand
v
v Hour Hand (24-hour)
b
b Small Minute Hand: Indicates the currently set alarm time minute.
n
n Small Hour Hand: Indicates the currently set alarm time hour.
m
m Small Hour Hand (24-hour): Indicates the currently set alarm time in 24-
hour format.
,
, Lower Dial Hand: Indicates the current alarm ON/OFF setting.
To enter the Alarm Mode
Refer to the Mode Reference Guide (page E-21).
xEntering the Alarm Mode will cause the
,
Lower Dial Hand to move to ON or OFF.

B + *> @
5 6
E-41
xBefore starting a countdown timer operation, check to make sure that the countdown timer is not
already operating (indicated by a moving
b
Small Minute Hand). If it is, press Ato stop it and then B
to reset to the countdown start time.
xPulling out the crown while a countdown operation is in progress will stop the ongoing operation so you
can change the countdown start time setting.
To stop the alarm
Press any button.
E-40
To specify the countdown start time
1. In the Countdown Timer Mode, pull out the crown to the first click.
xIf you do not perform any operation with the crown for about two minutes
after pulling it out, crown operations will become disabled and the watch
hands will no longer move when you rotate the crown. If this happens,
push the crown back in and then pull it out again.
2. Rotate the crown to set the countdown start time.
xYou can use high-speed movement (page E-3) when performing the above
step.
xTo set a start time of 60 minutes, position the
n
Small Hour Hand at
12 o’clock and the
m
Small Hour Hand (24-hour) at 6 o’clock. To set
a start time of 120 minutes, position the
n
Small Hour Hand and the
m
Small Hour Hand (24-hour) at 12 o’clock.
3. Push the crown back in.
To perform a countdown timer operation
AA B
Start Stop Reset
xPressing Bwhile the Countdown Timer is stopped resets the displayed time to the start time specified
by you.
xPressing Bwill not perform a reset while the hands are moving to the current timer time after you enter
the Countdown Timer Mode.

*
5 6

Operation Guide 5369 (MTG)
E-55
Power Supply: Solar panel and one rechargeable battery
Approximate battery operating time: 5 months (no exposure to light after a full charge; one signal
reception of approximately 4 minutes, and 10 seconds of alarm operation per day)
E-54
Specifications
Accuracy at normal temperature: ±15 seconds a month (with no signal calibration)
Timekeeping : Hour, minutes, seconds, 24-hour, day, day of the week
Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099
Other: Home City and World Time City can be assigned one of 29 city codes (29 time zones) and
Coordinated Universal Time; Daylight Saving Time (summer time)/Standard Time auto switching
Time Calibration Signal Reception: Auto receive up to six times a day (5 times a day for the Chinese
calibration signal; Remaining auto receives cancelled as soon as one is successful);
Manual receive
Receivable Time Calibration Signals:
Mainflingen, Germany (Call Sign: DCF77, Frequency: 77.5 kHz); Anthorn, England
(Call Sign: MSF, Frequency: 60.0 kHz); Fukushima, Japan (Call Sign: JJY, Frequency:
40.0 kHz); Fukuoka/Saga, Japan (Call Sign: JJY, Frequency: 60.0 kHz); Fort Collins,
Colorado, the United States (Call Sign: WWVB, Frequency: 60.0 kHz); Shangqiu City,
Henan Province, China (Call Sign: BPC, Frequency: 68.5 kHz)
Stopwatch: Measuring capacity: 1:59'59.95"
Measuring unit: 1/20 (0.05) seconds
Measuring modes: Elapsed time, Split time
Other: Auto-Start
Countdown Timer:
Measuring unit: 1 second
Input range: 1 to 120 minutes (1-minute increments)
Alarm: Daily alarm
Other: Power Saving; Low battery alert; Auto Correction of Hand Home Positions
E-53
■Signal reception is being performed successfully, but the time and/or day is wrong.
Possible Cause Remedy Page
Your Home City setting is wrong. Check your Home City setting and correct it, if
necessary.
E-14
E-24
The watch may have been exposed to magnetism
or strong impact, which has caused problems with
proper hand and day alignment.
Adjust the watch’s hand and day home positions. E-45
Alarm
■The alarm does not sound.
Possible Cause Remedy Page
Battery power is low. Expose the watch to light until battery power is
back to normal. E-10
The watch is in the sleep state. Move the watch to a well-lit area or press any button. E-13
The crown is pulled out. Push the crown back in. E-3
Crown Operation
■Nothing happens when I rotate the crown.
Possible Cause Remedy Page
The crown has been left pulled out for more than
two minutes (30 minutes in the case of hand home
position adjustment) without any operation being
performed.
Push the crown back in and then pull it out again to
restore normal operation. E-3
E-52
■The current time setting is off by one hour.
Possible Cause Remedy Page
The period when summer time is applied in the
location where you are using the watch may be
different from the period set for your currently
selected Home City.
Use the procedure under “To switch between
standard time and summer time manually” to switch
from AT (AUTO) to STD (for standard time) or DST
(for summer time).
E-27
■Auto Receive is not performed or I cannot perform Manual Receive.
Possible Cause Remedy Page
Your Home City setting is wrong. Check your Home City setting and correct it, if
necessary.
E-14
E-24
Auto Receive is disabled because there is an
ongoing elapsed time operation or Auto Start
countdown operation in the Stopwatch Mode.
Stop the ongoing Stopwatch Mode operation. E-35
A countdown timer operation is in progress.
Both Auto Receive and Manual Receive are
disabled while a countdown is in progress. If you
want to perform Auto Receive, go to the Countdown
Timer Mode, stop the timer operation, and then
return to the Dual Time Mode.
E-39
The Auto Receive function is turned off. Turn on Auto Receive. E-19
The crown is pulled out. Push the crown back in. E-3
There is not enough power for signal reception. Expose the watch to light to charge it. E-10
E-51
Time Calibration Signal
The information in this section applies only when LONDON (LON), PARIS (PAR), ATHENS (ATH),
HONOLULU (HNL), ANCHORAGE (ANC), LOS ANGELES (LAX), DENVER (DEN), CHICAGO (CHI),
NEW YORK (NYC), HONG KONG (HKG), or TOKYO (TYO) is selected as the Home City. You need to
adjust the current time manually when any other city is selected as the Home City.
■The
x
Second Hand indicates N (NO) when I check the result of the latest receive operation.
Possible Cause Remedy Page
xYou are wearing or moving the watch, or
performing a button operation during the signal
receive operation.
xThe watch is in an area with poor reception
conditions.
Keep the watch in an area where reception
conditions are good while the signal receive
operation is being performed.
E-16
An alarm sounded while time signal reception was
in progress. Try again later. —
You are in an area where signal reception is not
possible for some reason. See “Approximate Reception Ranges”. E-15
The calibration signal is not being transmitted for
some reason.
xCheck the website of the organization that
maintains the time calibration signal in your area
for information about its down times.
xTry again later.
—
■The current time setting changes after I set it manually.
You may have the watch configured for Auto Receive of the time calibration signal (page E-17), which will
cause the time to be adjusted automatically according to your currently selected Home City. If this results
in the wrong time setting, check your Home City setting and correct it, if necessary (page E-24).
E-50
■The current time setting is off by one hour.
xIf you are using the watch in an area where time calibration signal reception is possible, see “To
configure Home City settings” (page E-24).
xThe period when summer time is applied in the location where you are using the watch may be
different from the period set for your currently selected Home City. Use the procedure under “To switch
between standard time and summer time manually” (page E-27) to switch from AT (AUTO) to STD (for
standard time) or DST (for summer time).
■The hands and/or day indications are off.
This could indicate that the watch has been exposed to magnetism or strong impact, which has caused
problems with proper hand and day alignment. Adjust the watch’s hand and day home position alignment
(page E-45).
■Data indication is correct, but it is not in the middle of the day indicator.
The
.
Day Indicator will change gradually between approximately 10 p.m. and 2 a.m. each day. If the
date is misaligned during this period, it is only momentarily and does not indicate malfunction. If you
change your Home City setting while the current time in the new Home City is between approximately
10 p.m. and 2 a.m., the date may become misaligned momentarily.
Charging
■The watch does not resume operation after I expose it to light.
It can take quite a long time to charge the battery after the power level drops to Level 3 (page E-11). Continue
exposing the watch to light until the
x
Second Hand starts moving normally (at one-second intervals).
■The
x
Second Hand starts to move at one-second intervals, but then suddenly returns to moving
at two-second intervals.
The watch probably is not sufficiently charged yet. Continue keeping it exposed to light.
E-49
Troubleshooting
Hand Movement and Position
■I lost track of what mode the watch is in.
Refer to “Mode Reference Guide” (page E-21). To return directly to the Dual Time Mode, hold down Cfor at
least two seconds.
■The
x
Second Hand is moving at two-second intervals.
■All the watch’s hands are stopped at 12 o’clock and none of the buttons work (
x
Second Hand
stopped at 57, 58, 59, or 00).
Power may be low. Expose the watch to light until the
x
Second Hand starts moving normally, at one-
second intervals (page E-11).
■The hands of the watch suddenly start moving at high speed, even when I do not perform any
operation.
This could be due to any one of the following causes. In all cases, the hand movement does not indicate
malfunction, and should stop shortly.
xThe watch is recovering from a sleep state (page E-13).
xThe time setting is being adjusted following a successful auto time calibration signal receive operation
(page E-14).
■Hands suddenly stop moving. Button operation also is disabled.
The watch may be in the power recovery mode (page E-12). Do not perform any operation until the hands
return to their normal positions. The hands should return to their correct positions when normal operation
returns. To help power recover, leave the watch in a location where it is exposed to light.
■The current time setting is off by hours.
xYour Home City setting may be wrong. Check your Home City setting and correct it, if necessary (page
E-24).
E-48
4. Press C.
xCheck if the
b
Small Minute Hand is stopped at 12 o’clock.
xIf the position of the
b
Small Minute Hand is not correct, rotate
the crown to adjust it to 12 o’clock.
5. Press C.
xCheck if the
n
Small Hour Hand is stopped at 12 o’clock.
xIf the position of the
n
Small Hour Hand is not correct, rotate
the crown to adjust it to 12 o’clock.
xThe
m
Small Hour Hand (24-hour) moves simultaneously with
the
n
Small Hour Hand. If the hands are not at 12 o’clock,
advance the
n
Small Hour Hand until they do.
6. Press C.
xCheck if the
,
Lower Dial Hand is stopped at 12 o’clock.
xIf the position of the
,
Lower Dial Hand is not correct, rotate the
crown to adjust it to 12 o’clock.
7. Push the crown back in.
This exits the adjustment mode and returns to normal timekeeping.
Important!
xLeaving the crown pulled out for more than approximately 30 minutes without performing any operation
will automatically cause the adjustment operation to become disabled. If this happens, push the crown
back in and then pull it out to restart the above procedure from the beginning.
xPushing the crown in will return to the mode you started from in step 1 with the hands and/or day in
their newly adjusted positions.


B +
 
*
5 6

Operation Guide 5369 (MTG)
L-3
City Code City
UTC Offset/
GMT Differential
Summer Time Period
Summer Time Start Summer Time End
DUBAI (DXB) Dubai +4
None None
KABUL (KBL) Kabul +4.5
KARACHI (KHI) Karachi +5
DELHI (DEL) Delhi +5.5
DHAKA (DAC) Dhaka +6
YANGON (RGN) Yangon +6.5
BANGKOK (BKK) Bangkok +7
HONG KONG (HKG) Hong Kong +8
TOKYO (TYO) Tokyo +9
ADELAIDE (ADL) Adelaide +9.5 02:00, first Sunday in
October 03:00, first Sunday in April
SYDNEY (SYD) Sydney +10
NOUMEA (NOU) Noumea +11 None None
WELLINGTON (WLG) Wellington +12 02:00, last Sunday in
September 03:00, first Sunday in April
xBased on data as of December 2012.
xThe rules governing global times (UTC offset and GMT differential) and summer time are determined
by each individual country.
xThe summer time periods in this table are applicable to specific cities. For cities not included in the
list, select the list city that is in the same time zone as the desired city and perform STD/DST settings
manually.
L-2
City Code Table
City Code City
UTC Offset/
GMT Differential
Summer Time Period
Summer Time Start Summer Time End
PAGO PAGO (PPG) Pago Pago –11 None None
HONOLULU (HNL) Honolulu –10
ANCHORAGE (ANC) Anchorage –9
02:00, second Sunday
in March
02:00, first Sunday in
November
LOS ANGELES (LAX) Los Angeles –8
DENVER (DEN) Denver –7
CHICAGO (CHI) Chicago –6
NEW YORK (NYC) New York –5
SANTIAGO (SCL) Santiago –4 24:00, second Saturday in
October
24:00, second Saturday
in March
RIO Rio De Janeiro –3 0:00, third Sunday in
October
0:00, third Sunday in
February or 0:00, fourth
Sunday in February
F. DE NORONHA (FEN) Fernando de Noronha –2
None NonePRAIA (RAI) Praia –1
UTC
0
LONDON (LON) London 01:00, last Sunday in
March
02:00, last Sunday in
October
PARIS (PAR) Paris +1 02:00, last Sunday in
March
03:00, last Sunday in
October
ATHENS (ATH) Athens +2 03:00, last Sunday in
March
04:00, last Sunday in
October
JEDDAH (JED) Jeddah +3 None None
TEHRAN (THR) Tehran +3.5 0:00, March 22 or
0:00, March 21
0:00, September 22 or
0:00, September 21
L-1
City Code Table