Casio WTP-150 User manual

Basic Operations
This section provides an overview of the watch
and its operations.
Note
●In this manual, the expression “time
signal” refers to a time calibration
signal. Time signals include time
information.
●Note that the watch illustrations in
this manual are intended for
reference only. The actual watch
may appear somewhat different
than depicted in the illustrations.
General Guide
30
③① ②
⑦
④
⑤⑧
⑨
⑥
AHour hand
BSecond hand
CMinute hand
DMode hand
ESmall hour hand
FSmall minute hand
GSmall 24-hour hand
HDay indicator
ICrown
MA1605-EB © 2015 CASIO COMPUTER CO., LTD.
Watch Face Items
③
①
②⑤
④
⑥
Aam/pm
BTime signal reception result
CDay of the week
DTime signal reception in progress
EStopwatch Mode
FSummer time setting
Navigating Between Modes
This watch has a Timekeeping Mode and a
Stopwatch Mode.
You tell which mode the watch is currently in
by checking the position of the mode hand.
●Timekeeping Mode (normal timekeeping):
Current day of the week
●Stopwatch Mode: ST (STW)
30
30
C
Stopwatch Mode
Timekeeping Mode
Use the (C) button to navigate between
modes.
●Hold down (C) for at least two seconds to
return to the Timekeeping Mode.
Mode Overview
Timekeeping Mode
The main hour, minute, and second hands
indicate the current time.
The small hour and minute hands indicate the
current World Time.
30
② ③
⑤
①
④
Current location time/
World Time swapping
(Hold down about 3
seconds.)
ACurrent location day of the week
BWorld Time hour (24-hour time)
CCurrent location day
DWorld Time minute
EWorld Time hour
Stopwatch Mode
The main hour and minute hands indicate the
current time.
The second hand, and the small hour and
minute hands indicate the elapsed stopwatch
time.
30
② ③
①
④
Start/
Stop
Reset
AStopwatch seconds
BStopwatch hours (24-hour time)*
CStopwatch hours
DStopwatch minutes
* The A-side of the dial indicates hours 0
through 12, while the P-side indicates hours
12 through 24.
Operation Guide 5453
1

Using the Crown
Depending on the operation you want to
perform, pull out the crown to the first or
second click and then rotate it.
Normal position
Second click
First click
Crown
Important!
●To prevent loss of water resistance
and/or damage due to impact, be
sure to push the crown in to its
normal position after you are
finished using it.
●When pushing the crown back in,
take care not to apply too much
force.
●Fast Forward/Fast Reverse
After pulling out the crown to the first or second
click, rotating it quickly in succession in either
direction will start a fast forward or fast reverse
operation. While a fast forward operation is in
progress, quickly rotating the crown in
succession again will increase the speed even
further.
●The fast reverse operation speed is fixed
and cannot be changed.
●Stopping Fast Forward/Fast Reverse
Rotate the crown in the direction opposite that
of the ongoing operation or press any button.
Note
●If you do not perform any operation
for about two minutes after pulling
out the crown, crown operations will
automatically become disabled. If
that happens, push the crown back
in and then pull it out again.
Changing Hand and the Day
Indicator Settings
30
Day indicator
Mode
hand
●Mode Hand and Day Indicator
Movement
Changing the day setting of the watch will also
cause the mode hand to move.
●Day
●It can take anywhere from about 90 seconds
to three minutes for the day indicator to
change after timekeeping reaches
midnight. The mode hand moves as the day
indicator changes.
●The day may not be indicated correctly while
the watch’s crown is pulled out.
Solar Charging
What is solar charging?
This watch runs on power supplied from a
rechargeable (secondary) battery that is
charged by a solar panel. The solar panel is
integrated into the face of the watch, and
power is generated whenever the face is
exposed to light.
Charging the Watch
When you are not wearing the watch, put it in
a location where it is exposed to bright light.
While you are wearing the watch, make sure
that its face (solar panel) is not blocked from
the light by the sleeve of your clothing. Power
generation efficiency is reduced even when
the face of the watch is blocked only partially.
NOYES
Important!
●Depending on light intensity and
local conditions, the watch may
become hot to the touch when
exposed to light for charging. Take
care to avoid burn injury after
charging. Also, avoid charging the
watch under high-temperature
conditions like the ones described
below.
ーOn the dashboard of a vehicle
parked in the sun
ーNear an incandescent light bulb or
other source of heat
ーUnder direct sunlight or in other
hot areas for long periods
Charging Time Guidelines
The table below shows guidelines for
approximate charging times.
Required Charging Time for 1-day Use
Light Intensity Approximate Charging Time
High
p
Low
A8 minutes
B30 minutes
C48 minutes
D8 hours
Time Required to Achieve Next Charge
Level
Light Intensity
Approximate Charging Time
Charge Level
1
Charge Level
2
High
p
Low
A2 hours 24 hours
B6 hours 89 hours
C9 hours 144 hours
D99 hours -
Light Intensity
ASunny day, outdoors (50,000 lux)
BSunny day, near a window (10,000 lux)
COvercast day, near a window (5,000 lux)
DIndoor fluorescent lighting (500 lux)
Charge Level 1:
Time from dead battery until hand movement
starts
Charge Level 2:
Time from hand movement starts until a full
charge
Note
●Actual charging time depends on the
local charging environment.
Operation Guide 5453
2

Remaining Charge and Dead
Battery
The charge level is indicated by watch hand
movement. Functions become disabled as
battery power goes low.
Important!
●Should battery go low or go dead,
expose the face (solar panel) to light
as soon as possible.
Note
●Exposing the watch face to light after
the battery goes dead will cause the
second hand to revolve
counterclockwise until it stops at
second 57. This indicates charging
has started.
●Low Battery Power
The second hand jumps at two-second
intervals.
Second hand
●Dead Battery
All hands are stopped.
1
Power Saving Function
Leaving the watch in a dark location for about
one hour between the hours of 10 p.m. and 6
a.m. will cause the second hand to stop, and
the watch will enter Level 1 power saving. If
the watch is left in this condition for six or
seven days, all hands will stop and the watch
will enter Level 2 power saving.
Level 1:
Second hand stops to save power.
Level 2:
All hand movement is stopped to save power
(day continues operating).
Note
●Note that the watch also may enter
the power saving state if its face is
blocked from light by your sleeve
while you are wearing it.
●The watch will enter power saving
from the Timekeeping Mode only.
●Recovering from Power Saving
Operation
Press any button or place the watch in a well-
lit area to recover from power saving.
Auto Time Adjustment
The watch’s time and day settings can be
configured in accordance with a received time
signal.
Important!
●To receive a time signal, one of the
cities shown under “Time Signal
Cities” needs to be set as your Home
City.
●Whenever you are in an area where
a time signal cannot be received or
if your Home City does not support
time signal reception, you will need
to configure time and date settings
manually.
Receiving a Time Signal
Time Signal Cities
City code
City Name Offset Second Hand Position
TOKYO (TYO)
Tokyo +9 28 seconds
Receivable Time Signal: Japan Time
Calibration Signal (JJY)
City code
City Name Offset Second Hand Position
HONG KONG (HKG)
Hong Kong +8 26 seconds
Receivable Time Signal: China Time
Calibration Signal (BPC)
City code
City Name Offset Second Hand Position
NEW YORK (NYC)
New York -5 50 seconds
CHICAGO (CHI)
Chicago -6 48 seconds
DENVER (DEN)
Denver -7 46 seconds
LOS ANGELES (LAX)
Los Angeles -8 44 seconds
ANCHORAGE (ANC)
Anchorage -9 42 seconds
HONOLULU (HNL)
Honolulu -10 40 seconds
Receivable Time Signal: U.S. Time
Calibration Signal (WWVB)
City code
City Name Offset Second Hand Position
LONDON (LON)
London 0 2 seconds
PARIS (PAR)
Paris +1 4 seconds
ATHENS (ATH)
Athens +2 6 seconds
Receivable Time Signal: U.K. (MSF) and
German (DCF77) Time Calibration Signals
Time Signal Reception Ranges
Time signal reception is supported in the
areas shown below.
●Japan Time Calibration Signal (JJY)
500 kilometers
500 kilometers
1,000 kilometers
1,000 kilometers To k y o
Fukushima
Fukuoka/
Saga
●
Chinese Time Calibration Signal (BPC)
500 kilometers
1,500 kilometers
Chengdu
Shangqiu
Hong Kong
Shanghai
Beijing
Changchun
Operation Guide 5453
3

●U.S. Time Calibration Signal (WWVB)
600 miles
(1,000 kilometers)
2,000 miles (3,000 kilometers)
Los Angeles
Denver
Fort Collins
Chicago
New York
●U.K. (MSF) and German (DCF77) Time
Calibration Signal
The Anthorn signal is receivable within this area.
500 kilometers
1,500 kilometers
Mainflingen
Anthorn
Note
●Even if you are within the normal
reception range of a time signal,
reception may be made impossible
by the following factors: geographic
contours, weather, the season, the
time of day, wireless noise.
Signals become weaker outside of
the smaller circles indicated by
dashed lines in the maps above, so
the above factors have greater effect
on signal reception.
Though the Honolulu and
Anchorage areas (time zones) are
outside of the time signal reception
range of the watch, reception may be
possible when reception conditions
are good.
●With the AT (AUTO) summer time
setting, the watch may not indicate
correct time if you are using it in a
country or region that is different
from the country or region where the
time calibration signal transmitter is
located. This is due to differences in
adoption of summer time rules,
differences in summer time periods,
etc. If this happens, change the city
and/or summer time setting so the
correct time is displayed.
l Setting a Home Time City
Setting a Home Time City
Use the procedure in this section to select a
city to use as your Home City. If you are in an
area that observes summer time, you can also
enable or disable summer time.
Important!
●World Time times will not be correct
if you select the wrong city as your
Home City.
Note
●The initial factory default summer
time setting for all cities (time zones)
is “AT (AUTO)”.
●Your watch has 29 built-in cities that
you can select as a Home Time City.
If you are using the watch in a
location that is not among the built-
in cities, use the built-in city that is in
the same time zone as your location.
For available city settings, see “City
(Time Zone) List”.
●You can check the current Home
City setting by pressing (A) in the
Timekeeping Mode. This will cause
the second hand to move to the
currently selected Home City time
zone.
l Navigating Between Modes
1. Pull out the crown to the second click.
The second hand will move to the
currently selected city code.
30
City code
Crown
2. Rotate the crown to move the second
hand to the city you want to set.
3. To change the summer time setting, press
(A).
●While the mode hand is pointed at “AT
(AUTO)”, “STD”, or “DST”, you can hold
down (A) for about one second to cycle
the summer time setting in the
sequence below.
“AT (AUTO)”n“STD”n“DST”
30
●“AT (AUTO)”
The watch switches between standard
time and summer time automatically.
l Summer Time Table
●“STD”
The watch always indicates standard
time.
●“DST”
The watch always indicates summer
time.
4. Push the crown back in to its normal
position.
Operation Guide 5453
4

Summer Time
Summer time, which is also known as Daylight
Saving Time (DST), advances the time setting
one hour, 30 minutes, or some other amount
of time from standard time (STD) during the
summer months. Whether or not and how
summer time is used depends on your country
or local area. Summer time is not used in some
countries and local areas.
Appropriate Signal Reception
Location
A time calibration signal can be received while
the watch is near a window.
●Keep metal objects away from the watch.
●Do not move the watch.
●Do not perform any operation on the watch.
6 o’clock position
Note
●You may experience time signal
reception problems in the areas
described below.
ーAmong or near buildings
ーWhile riding in a vehicle
ーNear household appliances,
office machines, mobile phones,
etc.
ーOn a construction site, in an
airport, or any other location
where radio wave interference
occurs
ーNear high-voltage lines
ーIn mountainous areas or behind a
mountain
Auto Time Signal Receive
An automatic time signal receive operation is
performed and the time and day settings are
adjusted between midnight and 5:00 a.m.
Once a signal receive operation is successful,
no more auto receive operations are
performed that day.
The receive operation is performed only while
the watch is in the Timekeeping Mode.
lNavigating Between Modes
30
Place the watch near a window or some other
location appropriate for signal reception.
●When the receive operation is successful,
the time and day settings will be adjusted
automatically.
Note
●Reception takes anywhere from
about two minutes to about 10
minutes. It can take as long as 20
minutes.
●Using Auto Receive
Before going to bed at night, put the watch into
the Timekeeping Mode (whose settings
should be configured correctly), and leave it
near a window.
Enabling/Disabling Auto Receive
Use the procedure below to enable or disable
Auto Receive.
Getting ready
Enter the Timekeeping Mode.
lNavigating Between Modes
30
1. Press (B).
This causes the last receive operation
result to be indicated by the second hand.
2. Within 10 seconds after the last receive
result is indicated, pull out the crown to the
first click.
The second hand will move to the current
auto receive setting.
“Y (YES)”: Auto receive on
“N (NO)”: Auto receive off
30
Second hand
3. Rotate the crown to select either “Y
(YES)” or “N (NO)”.
4. Push the crown back in to complete the
setting operation.
Operation Guide 5453
5

Manual Time Signal Receive
You can use a button operation to receive the
time signal.
Getting ready
Enter the Timekeeping Mode.
lNavigating Between Modes
30
1. Hold down (B) for about two seconds until
the second hand points to “R”.
2. Place the watch near a window or some
other location appropriate for time signal
reception.
This indicates that time signal reception
has started.
●While a time signal receive operation is
in progress, the second hand indicates
the current status.
“R (READY)”: Reception unstable
“W (WORK)”: Reception stable
●To cancel an ongoing time signal
receive operation, press any button.
30
Second hand
●When a receive operation is successful,
the time and day settings will be
adjusted automatically.
●If reception fails for some reason, check
the surrounding reception environment
and then try again.
Note
●Reception takes anywhere from
about two minutes to about 10
minutes. It can take as long as 20
minutes.
Checking the Receive
Operation Result
Use the procedure below to check the result
of the last time signal receive operation.
Getting ready
Enter the Timekeeping Mode.
lNavigating Between Modes
1. Press (B).
The second hand will move and indicate
the receive operation result.
“Y (YES)”: Receive successful
“N (NO)”: Receive failed
30
Second hand
2. The watch will return to current time
indication if you press any button or do not
perform any operation for 10 seconds.
Note
●Even if there was a successful
receive operation, the second hand
will point to “N (NO)” if you adjusted
the time setting manually.
Signal Reception
Precautions
●When the watch is unable to adjust its time
in accordance with a calibration signal for
some reason, average timekeeping
accuracy is within ±15 seconds per month.
●Time signal reception is not possible when
any one of the conditions exists.
ーWhile battery power is low
ーWhile in the Stopwatch Mode
ーPower Saving Level 2
ーWhile the crown is pulled out
●Note that an internal decoding process the
watch performs after it receives a signal may
cause the time setting to be slightly off (by
less than one second).
●As of July 2015, China does not observe
summer time. If China starts to observe
summer time in the future, the time
displayed by the watch for China may not be
correct.
World Time
You can view the current time in 29 cities and
UTC (Coordinated Universal Time) time.
30
Getting ready
Enter the Timekeeping Mode.
lNavigating Between Modes
Specifying a World Time City
Use the procedure in this section to select a
World Time city. If you are in an area that
observes summer time, you can also enable
or disable summer time.
1. Pull out the crown to the first click.
The second hand will move to the city
code of the currently selected World Time
City.
30
City code
Crown
Small hour hand
Small minute hand
Small 24-hour hand
2. Rotate the crown to select another city
code.
The small hour and minute hands will
indicate the current time in the city you
selected.
●Hold down (B) for about one second to
display UTC (Coordinated Universal
Time) time.
30
World Time hour (24-hour)
World Time hour and minute
Crown
Operation Guide 5453
6

3. Press (A) to change the summer time
setting.
●While the mode hand is pointed at “AT
(AUTO)”, “STD”, or “DST”, you can hold
down (A) for about one second to cycle
the summer time setting in the
sequence below.
“AT (AUTO)”n“STD”n“DST”
30
●“AT (AUTO)”
The watch switches between standard
time and summer time automatically.
l Summer Time Table
●“STD”
The watch always indicates standard
time.
●“DST”
The watch always indicates summer
time.
4. Push the crown back in.
Note
●The initial factory default summer
time setting for all cities is “AT
(AUTO)”.
●You cannot switch between “STD”
and “DST” while “UTC” is selected
as the Home City (time zone).
Swapping the World Time
and Current Location Time
Holding down (A) for about three seconds will
swap your World Time with your current
location time (Home Time).
30
30
Current location time World Time
Current location time
World Time
Before swapping
n
After swapping
●If a swapping operation causes a change in
the day indicator setting, the mode hand will
rotate repeatedly.
l Changing Hand and the Day Indicator
Settings
Note
●This function comes in handy when
you need to move to another time
zone. For details about how to use it,
see “Moving to Another Time Zone”.
Stopwatch
The stopwatch measures elapsed time in units
of one second up to 23 hours, 59 minutes, 59
seconds (24 hours).
Getting ready
Perform this procedure in the Stopwatch
Mode. Use (C) to navigate to the Stopwatch
Mode.
lNavigating Between Modes
30
Stopwatch Mode
Measuring Elapsed Time
30
1. Use the operations below to measure
elapsed time.
A
A
A
AStop
Resume
Stop
Start
30
Seconds
Hours
Minutes
Hour (24-hour time)
2. Press (B) to reset the stopwatch.
3. Press (C) once to return to the
Timekeeping Mode.
Manual Time
Adjustment
You can use the procedure below to adjust the
time and day settings when time signal
reception and adjustment is not possible.
Setting a Home Time City
Use the procedure in this section to select a
city to use as your Home City. If you are in an
area that observes summer time, you can also
enable or disable summer time.
Important!
●World Time times will not be correct
if you select the wrong city as your
Home City.
Note
●The initial factory default summer
time setting for all cities (time zones)
is “AT (AUTO)”.
●Your watch has 29 built-in cities that
you can select as a Home Time City.
If you are using the watch in a
location that is not among the built-
in cities, use the built-in city that is in
the same time zone as your location.
For available city settings, see “City
(Time Zone) List”.
●You can check the current Home
City setting by pressing (A) in the
Timekeeping Mode. This will cause
the second hand to move to the
currently selected Home City time
zone.
l Navigating Between Modes
Operation Guide 5453
7

1. Pull out the crown to the second click.
The second hand will move to the
currently selected city code.
30
City code
Crown
2. Rotate the crown to move the second
hand to the city you want to set.
3. To change the summer time setting, press
(A).
●While the mode hand is pointed at “AT
(AUTO)”, “STD”, or “DST”, you can hold
down (A) for about one second to cycle
the summer time setting in the
sequence below.
“AT (AUTO)”n“STD”n“DST”
30
●“AT (AUTO)”
The watch switches between standard
time and summer time automatically.
l Summer Time Table
●“STD”
The watch always indicates standard
time.
●“DST”
The watch always indicates summer
time.
4. Push the crown back in to its normal
position.
Adjusting the Time and Day
Setting
1. Pull out the crown to the second click.
The second hand will move to the
currently selected city code.
30
City code
Crown
MinutesHours
2. Hold down (C) for about two seconds.
This causes the second hand to move to
“A” (am) or “P” (pm), which indicates the
minute setting operation.
3. Rotate the crown to change the minute
setting.
4. Press (C).
The hour hand will move slightly,
indicating that the hour setting operation
is enabled.
5. Rotate the crown to change the hour
setting.
6. Press (C).
This changes to the year setting
operation.
80
90 30
40
20
50
70
10
60
00
＋
−
Year (10’s digit)
＋
−
8
93
4
2
57
1
6
0
Year (one’s digit)
7. Rotate the crown to move the hour hand
to the desired setting for the year ten’s
digit, and the minute hand to the desired
one’s digit.
8. Press (C).
This changes to the month setting
operation.
＋
−
8
93
4
2
57
1
6
10
11 12
Month
9. Rotate the crown to change the month.
10. Press (C).
The mode hand will move slightly,
indicating that the day setting operation is
enabled.
30
＋
−
Day
●Changing the date setting will cause the
mode hand to rotate repeatedly.
l Changing Hand and the Day
Indicator Settings
11. Rotate the crown to change the day.
12. On a time signal at the top of a minute,
push the crown back in.
Operation Guide 5453
8

Adjusting Hand and
Day Indicator
Alignment
Strong magnetism or impact can cause the
time indicated by the hands and the day
indicator to go out of alignment. If this
happens, adjust hand and day indicator
alignment.
●The watch performs alignment of the hour
hand, minute hand, and second hand
automatically.
Adjusting Hand and Day
Indicator Alignment
1. Pull out the crown to the second click.
2. Hold down (B) for about five seconds, until
the second hand moves to 12 o’clock.
This starts auto alignment of the hour
hand, minute hand, and second hand.
●After auto alignment is complete, the
hands should be in the positions shown
below.
30
Crown
Hour hand
Minute hand
Second
hand
3. Press (C).
Confirm that the small hour hand and
small minute hand, and the small 24-hour
hand are stopped at 12 o’clock.
30
Small 24-hour hand
Small minute hand
Small hour hand
4. If the small hour hand and small minute
hand, and the small 24-hour hand are not
at 12 o’clock, rotate the crown to align
them correctly.
5. Press (C).
Confirm that the mode hand is stopped at
12 o’clock, and check if the day is
indicated properly.
30
Day (Operation start day)
Mode hand
6. If the mode hand or the day indicator is not
in the proper position, rotate the crown to
move the mode hand to 12 o’clock and the
day to the center of the indicator window.
●The movement range of the mode hand
and day indicator is limited when you
rotate the crown. The maximum left-
right movement of the mode hand is 180
degrees in either direction. The day
indicator moves only slightly.
●After the mode hand and day indicator
are in the positions you want, advance
to step 9 of this procedure. If you are
unable to make the adjustments you
want, go to step 7.
7. Press (C).
Confirm that the day indicator shows 1.
1
Day
●Changing the date setting will cause the
mode hand to rotate repeatedly. In
some cases, the mode hand may
continue to rotate for about 30 minutes.
l Changing Hand and the Day
Indicator Settings
8. If 1 is not shown for the day, rotate the
crown until 1 is shown.
●The mode hand moves in conjunction
with crown rotation. Move the mode
hand to 12 o’clock.
9. Push the crown back in.
Note
●Leaving 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 to its normal position
and then pull it out again to restart
the procedure from the beginning.
Pushing the crown in to its normal
position part way through the
alignment procedure will cause the
hands to return to their normal
position. Any alignment you
performed up to that point will be
applied.
Moving to Another Time
Zone
Use the procedure below to easily change day
and time settings of the watch to a destination
location.
●Before Boarding
Select a World Time City that corresponds to
your destination.
Destination time
Current time
30
lSpecifying a World Time City
●After Arriving
Swap the origin time zone time with the
destination time zone time.
30
30
n
Destination time Destination time
After swappingBefore swapping
lSwapping the World Time and Current
Location Time
Operation Guide 5453
9

Other Information
City (Time Zone) List
This list shows the 29 cities that are built in to
watch memory.
City code Offset Second Hand
Position
UTC (Coordinated
Universal Time) 0 0 seconds
LONDON (LON) 0 2 seconds
PARIS (PAR) +1 4 seconds
ATHENS (ATH) +2 6 seconds
JEDDAH (JED) +3 8 seconds
TEHRAN (THR) +3.5 10 seconds
DUBAI (DXB) +4 12 seconds
KABUL (KBL) +4.5 14 seconds
KARACHI (KHI) +5 16 seconds
DELHI (DEL) +5.5 18 seconds
DHAKA (DAC) +6 20 seconds
YANGON (RGN) +6.5 22 seconds
BANGKOK (BKK) +7 24 seconds
HONG KONG (HKG) +8 26 seconds
TOKYO (TYO) +9 28 seconds
ADELAIDE (ADL) +9.5 30 seconds
SYDNEY (SYD) +10 32 seconds
NOUMEA (NOU) +11 34 seconds
WELLINGTON
(WLG) +12 36 seconds
PAGO PAGO (PPG) -11 38 seconds
HONOLULU (HNL) -10 40 seconds
ANCHORAGE (ANC) -9 42 seconds
LOS ANGELES (LAX) -8 44 seconds
DENVER (DEN) -7 46 seconds
CHICAGO (CHI) -6 48 seconds
NEW YORK (NYC) -5 50 seconds
HALIFAX (YHZ) -4 52 seconds
RIO DE JANEIRO
(RIO) -3 54 seconds
F. DE NORONHA
(FEN) -2 56 seconds
PRAIA (RAI) -1 58 seconds
●The information in the above table is current
as of July 2015.
Summer Time Table
When “AT (AUTO)” is selected for a city that
observes summer time, switching between
standard time and summer time will be
performed automatically at the timing shown
in the table below.
Note
●If the summer time start and end
dates for a location have been
changed from those indicated in the
table, you will need switch between
“STD” and “DST” manually.
City Name Summer Time
Start
Summer Time
End
London
01:00, last
Sunday in
March
02:00, last
Sunday in
October
Paris
02:00, last
Sunday in
March
03:00, last
Sunday in
October
Athens
03:00, last
Sunday in
March
04:00, last
Sunday in
October
Tehran
00:00 on March
22, or 00:00 on
March 21
00:00 on
September 22,
or 00:00 on
September 21
Adelaide
02:00, first
Sunday in
October
03:00, first
Sunday in April
Sydney
02:00, first
Sunday in
October
03:00, first
Sunday in April
Wellington
02:00, last
Sunday in
September
03:00, first
Sunday in April
Anchorage
02:00, second
Sunday in
March
02:00, first
Sunday in
November
Los Angeles
02:00, second
Sunday in
March
02:00, first
Sunday in
November
Denver
02:00, second
Sunday in
March
02:00, first
Sunday in
November
Chicago
02:00, second
Sunday in
March
02:00, first
Sunday in
November
New York
02:00, second
Sunday in
March
02:00, first
Sunday in
November
Halifax
02:00, second
Sunday in
March
02:00, first
Sunday in
November
Rio de
Janeiro
00:00, third
Sunday in
October
00:00, third
Sunday in
February or
00:00, fourth
Sunday in
February
●The information in the above table is current
as of July 2015.
Troubleshooting
Time signal reception
Q1 The watch cannot perform a receive
operation.
Is the watch’s battery charged?
Signal reception is not possible while
battery power is low. Keep the watch
exposed to light until it recharges
sufficiently.
l Charging the Watch
Is the watch in the Timekeeping Mode?
Time signal reception is not possible while
the watch is in the Stopwatch Mode.
Return to the Timekeeping Mode.
l Navigating Between Modes
Is your Home City setting correct for your
location?
The watch will not indicate the correct time
if the Home City setting is wrong. Change
your Home City setting so it correctly
reflects your location.
l Setting a Home Time City
After checking the above, the watch still
cannot perform a receive operation.
Time signal reception is not possible
when any one of the conditions exists.
●During power saving
●When the crown is pulled out
The watch cannot perform auto receive if
auto receive is turned off.
l Enabling/Disabling Auto Receive
If successful reception is not possible for
some reason, you can adjust the time and
day settings manually.
Operation Guide 5453
10

Q2 The signal receive operation always
fails.
Is the watch in a location that is appropriate
for signal reception?
Check your surroundings and move the
watch to a location where signal reception
is better.
l Appropriate Signal Reception Location
Did you avoid touching the watch while the
receive operation was in progress?
Minimize movement of the watch and do
not perform any watch operation while a
receive operation is in progress.
Is the signal transmitter in your area
transmitting a signal?
The transmitter of the time signal may not
be transmitting. Try again later.
Q3 Signal reception should have been
successful, but the watch’s time and/
or day is wrong.
Do the hand and/or day indicator look out
of alignment?
Correct hand and day indicator alignment.
l Adjusting Hand and Day Indicator
Alignment
After checking the above, the time and/or
day settings is still wrong.
Adjust time and day settings manually.
l Manual Time Adjustment
Hand Movement and
Indications
Q1 I don’t know what mode the watch is
in.
You tell which mode the watch is currently in
by checking the position of the mode hand.
l Navigating Between Modes
●Hold down (C) for at least two seconds to
return to the Timekeeping Mode.
30
Q2 The second hand is jumping at two-
second intervals.
Battery power is low. Keep the watch exposed
to light until it recharges sufficiently.
l Charging the Watch
Q3 All hands are stopped at 12 o’clock
and buttons do not work.
The battery is dead. Keep the watch exposed
to light until it recharges sufficiently.
l Charging the Watch
Q4 The hands suddenly start moving at
high speed.
This is due to one of the reasons below, and
does not indicate malfunction. Simply wait
until normal hand movement resumes.
●The watch is recovering from a power
saving state.
l Power Saving Function
●A time signal is being received and the time
setting is being adjusted.
l Auto Time Adjustment
Q5 Hands are stopped and buttons do
not work.
The watch is in the charge recovery mode.
Wait until the recovery process is complete
(for about 15 minutes). The watch will recover
more quickly if you place it in a brightly lit
location.
Q6 The current time indicated by the
watch is off by a relatively regular
amount of time (such as nine hours,
3.5 hours, etc.).
The city setting is not correct. Select the
correct setting.
l Setting a Home Time City
Q7 The current time displayed by the
watch is off by one hour.
The summer time setting is not correct. Select
the correct setting.
l Setting a Home Time City
Q8 Hands and/or the day indicator is out
of alignment.
Strong magnetism or impact may cause the
hands of the watch to go out of alignment.
Correct hand position alignment.
l Adjusting Hand and Day Indicator
Alignment
Q9 The time setting is correct, but the
day indicator is between days.
The day is in the process of changing. For
information about how the day changes, see
the section below.
lChanging Hand and the Day Indicator
Settings
Crown Operations
Q1 Nothing happens when I rotate the
crown.
If you do not perform any operation for about
two minutes after pulling out the crown
(approximately 30 minutes in the case of hand
and day indicator alignment operations),
crown operations will automatically become
disabled. Push the crown back in to its normal
position and then pull it out again.
l Using the Crown
Charging
Q1 The watch does not work even
though it is exposed to light.
The watch stops operating whenever the
battery goes dead. Keep the watch exposed
to light until it recharges sufficiently.
lCharging the Watch
Operation Guide 5453
11