Operation Guide 5394 (OC)
E-47
To swap your Home City and World Time City
1. Hold down
A
for about three seconds until the watch beeps.
x
This will make the World Time City (
NYC
in this example) your new Home City. At the same time, it
will change the Home City you had selected (
TYO
in this example), to your World Time City.
x
After swapping the Home City and World Time City, the watch will stay in the World Time Mode. The
2
Second Hand
will point to your new World Time City (
TYO
in this example).
Note
x
If your current World Time City supports time calibration signal reception, making it your Home City
enables calibration signal reception for that city.
E-46
5. Push the crown back in to exit the city code setting mode.
x
If you do not perform any operation with the crown for about two minutes after pulling it out, crown
operations will become disabled. If this happens, push the crown back in and then pull it out again.
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
TYO
(Tokyo) and the World Time City is
NYC
(New York).
Home City
World Time City
Before swapping
Tokyo
10:08 p.m.
(Standard time)
New York
9:08 a.m.
(Daylight saving time)
After swapping
New York
9:08 a.m.
(Daylight saving time)
Tokyo
10:08 p.m.
(Standard time)
E-45
To view the time in another time zone
1. In the Timekeeping Mode, press
B
once to enter the World Time Mode.
x
The
5
Lower Dial Hand
will move to
WT
.
x
To select the UTC zone as your World Time, simply hold down
C
for about three seconds. No other
operation is required.
2. Pull out the crown.
x
The
2
Second Hand
points to the currently selected World Time city code.
x
The
5
Lower Dial Hand
will indicate
AUTO
,
STD
(standard time) or
DST
(daylight saving time),
which indicates the current daylight saving time setting.
x
This indicates the city code setting mode.
3. Rotate the crown to move the
2
Second Hand
to the city code you want to select as the World Time
City.
x
Each time you select a city code, the
1
Hour Hand
,
3
Minute Hand
, and
6
Day Indicator
move to
the current time and day for that city code. For details about city codes, see the “City Code Table” at
the back of this manual.
x
If 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 confi gure
Home City settings” (page E-27) to correct the Home City settings.
4. Hold down
A
for about one second to cycle through the summer time settings as shown below.
AUTO
STD
DST
A
A
A
x
For details about
AUTO
,
STD
, or
DST
, see “STD/DST Switching” (page E-28).
E-44
Checking the Current Time in a Different Time Zone
You can use World Time to view the current time in one of 29 time zones around the globe. The currently
selected city is called the “World Time City”.
Hands and Indicators
1
Hour Hand:
Indicates the hour of the current time in the World Time City.
2
Second Hand:
Indicates the current World Time City for about three
seconds after the World Time mode is entered.
3
Minute Hand
5
Lower Dial Hand:
Points to
WT
.
6
Day Indicator
x
Pressing
A
causes the
2
Second Hand
to move to the current World Time
City for about three seconds.
Important!
x
Time calibration signal reception is disabled while the watch is in the World
Time Mode.
NYC (NEW YORK)
E-43
Location
x
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.).
x
Accurate direction readings are impossible while in a train, boat, air plane, etc.
x
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.
Storage
x
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.) and household appliances (TVs, personal
computers, washing machines, freezers, etc.).
x
Whenever you suspect that the watch may have become magnetized, perform the procedure under
“To perform bidirectional calibration” (page E-40).
E-42
Digital Compass Precautions
Magnetic North and True North
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.
x
Magnetic north is the north that is indicated by the needle of a
compass.
x
True north, which is the location of the North Pole of the Earth’s axis, is
the north that is normally indicated on maps.
x
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.
True north
Earth
Magnetic north
E-41
To perform northerly calibration
Important!
x
If you want to perform both northerly and bidirectional calibration,
perform bidirectional calibration fi rst, and then perform northerly
calibration. This is necessary because bidirectional calibration cancels
any existing northerly calibration setting.
1. While a compass operation is being performed, pull out the crown.
x
The
2
Second Hand
and
3
Minute Hand
will move to 12 o’clock, and
the
1
Hour Hand
will move to 6 o’clock.
2. Press
B
. The
1
Hour Hand
will move to 12 o’clock.
3. Place the watch on a level surface, and point 12 o’clock of the watch in
the direction you want to set as north.
4. Press
A
to start calibration.
x
After about seven seconds, the
2
Second Hand
will move to
Y
(
YES
)
if
calibration was successful or to
N
(
NO
)
if it was not successful.
x
If the
2
Second Hand
is pointing at
N
(unsuccessful), press
A
to
perform calibration again.
5. After calibration is complete, push the crown back in.
x
This will start a magnetic north reading operation.
x
Press
B
to return to the Timekeeping Mode.
Note
x
To clear northerly calibration, perform bidirectional calibration.
Y
N
Direction you want to set
as north
E-40
To perform bidirectional calibration
1. While a compass operation is being performed, pull out the crown.
x
The
2
Second Hand
and
3
Minute Hand
will move to 12 o’clock, and
the
1
Hour Hand
will move to 6 o’clock.
2. Press
A
to start calibration of Point 1.
x
After about seven seconds, the
2
Second Hand
will move to
Y
(
YES
)
if
Point 1 calibration was successful or to
N
(
NO
)
if it was not successful.
x
If the
2
Second Hand
is pointing at
N
(unsuccessful), press
A
to
perform Point 1 calibration again.
x
If the
2
Second Hand
is pointing at
Y
(successful), it will move to
6 o’clock after about two seconds.
3. Rotate the watch 180 degrees.
4. Press
A
to start calibration of Point 2.
x
After about seven seconds, the
2
Second Hand
will move to
Y
if Point
2 calibration was successful or to
N
if it was not successful.
x
If the
2
Second Hand
is pointing at
N
(unsuccessful), press
A
to
return to Point 1 calibration.
5. After calibration is complete, push the crown back in.
x
This will start a magnetic north reading operation.
x
Press
B
to return to the Timekeeping Mode.