Operation Guide 5239
E-39
To switch between standard time and summer time manually
Perform steps 1 and 2 under “To confi gure Home City settings” (page E-36).
1.
Selecting a city code will cause the
x
z
Hour Hand
,
c
Minute Hand
, and
v
Upper Dial Hand
to move automatically to the current time for the selected
city code.
If you will use the watch in a city that is not included in the city code list, select a
x
city code that is in the same time zone as your city.
Displaying the Home City Settings screen will cause the
x
b
Lower Dial Hand
to
move to
AUTO
(auto switching),
STD
(standard time), or
DST
(daylight saving
time).
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.
E-38
STD/DST Switching
You can select summer time or standard time independently for each city. The initial
default setting for all cities is
AUTO
.
Normally you should use the
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 a time of a location that is not included in the watch’s list of 29 cities
−
When the preset AUTO standard time/summer time timing is incorrect for some
−
reason
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.
Note that you cannot switch between
x
STD
(standard time) and
DST
(daylight
saving time) while
UTC
* is selected as your Home City.
Coordinated Universal Time, the world-wide scientifi c standard of timekeeping. The
*
reference point for UTC is Greenwich, England.
E-37
If you do not perform any operation with the crown for about two minutes after
x
pulling it out, crown operations will become disabled and the hand will not move
if you rotate the crown. If this happens, push the crown back in and then pull it
out again.
For details about city codes, see the “City Code Table” at the back of this
x
manual.
Rotate the crown to move the
2.
x
Second Hand
to the city
code you want to select as your Home City.
Each time you select a city code, the
x
z
Hour Hand
,
c
Minute Hand
and
n
Day
Indicator
move to the
current time and day for that city code.
Push the crown back in to return to the Timekeeping
3.
Mode.
+
6
@
B
E-36
Confi guring 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.
To confi gure Home City settings
Note
This watch does not have a city code that
x
corresponds to Newfoundland.
Pull out the crown.
1.
This will cause the
x
x
Second Hand
to move to the
city code of the currently selected Home City.
This indicates the city code setting mode.
x
@
TYO (TOKYO)
E-35
Timekeeping
To enter the Timekeeping Mode, hold down
C
at least two seconds.
Hand Functions
z
Hour Hand
x
Second Hand
c
Minute Hand
v
Upper Dial Hand:
Indicates the current hour in the
Home City time in 24-hour format.
b
Lower Dial Hand:
Indicates the current mode.
n
Day Indicator
+
6
*
@
>
B
E-34
To select a mode
Each press of
C
will cycle between modes. The currently selected mode is indicated
by the
b
Lower Dial Hand
.
*
Timekeeping Mode
World Time Mode
Alarm Mode
Stopwatch Mode
C
C
C
C
E-33
Selecting a Mode
With this watch, everything starts from the Timekeeping Mode.
To determine the watch’s current mode
Check what the
b
Lower Dial Hand
is indicating as shown
under “To select a mode” (page E-34).
To return to the Timekeeping Mode from any other
mode
Hold down
C
for at least two seconds.
*
E-32
Mode Reference Guide
Your watch has four “modes”. The mode you should select depends on what you
want to do.
To do this:
Enter this mode:
See:
Confi gure Home City and DST (daylight saving time) settings
x
Perform a time calibration signal receive operation
x
Change the Auto Receive on/off setting
x
Confi gure time and day settings manually
x
Check the current power level
x
Timekeeping Mode
E-35
View the current time in one of 29 cities around the globe
x
Confi gure World Time City and summer time settings
x
Swap the Home City and World Time City
x
World Time Mode
E-48
E-49
E-52
Measure elapsed time and lap times, and recall lap times
Stopwatch Mode
E-54
Set an alarm time
x
Turn the alarm ON or OFF
x
Alarm Mode
E-59
E-62
E-31
Radio-controlled Atomic Timekeeping Precautions
Strong electrostatic charge can result in the wrong time setting.
x
Even if a receive operation is successful, certain conditions can cause the time
x
setting to be off by up to one second.
The watch is designed to update its day setting automatically for the period from
x
January 1, 2000 to December 31, 2099. Updating of the day setting by signal
reception will no longer be performed starting from January 1, 2100.
If you are in an area where signal reception is not possible, the watch keeps time
x
with the precision noted in “Specifi cations” (page E-76).
The receive operation is disabled under any of the following conditions.
x
While power is at Level 2 or lower (page E-15)
−
While the watch is in the power recovery mode (page E-16)
−
While the watch is in the function sleep state (power saving, page E-18)
−
A receive operation is cancelled if an alarm sounds while it is being performed.
x
E-30
To turn auto receive on and off
@
YES (Y)
NO (N)
In the Timekeeping Mode, press
1.
B
. The
x
Second
Hand
will move to
H
(
High
),
M
(
Medium
), or
L
(
Low
)
to indicate the power level, and then it will indicate the
latest time calibration signal receive operation result.
Pull out the crown.
2.
The
x
Second Hand
will perform one full revolution and
then stop at the current on/off setting.
Rotate the crown to move the
3.
x
Second Hand
to the
setting you want.
To turn on auto receive, select
x
YES
(
Y
).
To turn off auto receive, select
x
NO
(
N
).
Push the crown back in to return to the Timekeeping
4.
Mode.