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Operation Guide 5286 (OC)
E-39
Using the Countdown Timer
The countdown timer can be confi gured within a range of one minute to 120 minutes. An alarm sounds for
about 10 seconds when the timer reaches zero.
Hand Functions
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.
x All hands move counterclockwise during a countdown.
To enter the Countdown Timer Mode
Refer to the Mode Reference Guide (page E-21).
x Entering the Countdown Timer Mode will cause the
,
Lower Dial Hand to
move to TR.
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E-38
2. Rotate the crown to specify the Auto Start time seconds setting.
x You can use high-speed movement (page E-3) when performing the above step.
x Changing 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.
x You can use high-speed movement (page E-3) when performing the above step.
5. Push the crown back in.
To start an Auto Start operation
1. In the Stopwatch Mode with the elapsed time reset to all zeros, press B.
x This 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.
x Press B to 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.
x This starts the countdown from the Auto Start time.
x For information about button operations after the Auto Start starts elapsed time measurement, see
“To measure elapsed time” (page E-35) and “To measure split times” (page E-36).
Note
x To interrupt the countdown and immediately start the elapsed time operation, press A.
x You can perform all normal stopwatch button operations after the elapsed time operation starts.
x Auto 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 specifi ed start time (Auto Start time), and automatically starts
elapsed time measurement when the countdown reaches zero.
Hand Functions
b
b Small Minute Hand: Auto Start seconds
n
n Small Hour Hand: Auto Start minutes (0 to 60)
m
m Small Minute Hand (24-hour): Auto Start minutes (0 to 119)
To enter the Stopwatch Mode
Refer to the Mode Reference Guide (page E-21).
x Entering the Stopwatch Mode will cause the
,
Lower Dial Hand to move
to 0.
To set the Auto Start Time
x You 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 fi rst click.
x If 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.
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E-36
To measure split times
A
B
Display of normal
measurement returns after
5 seconds.
A B
Start Split Stop Reset
x Pressing B again while a split time is indicated will cause the hands to jump to a new (current) split
time.
x Pressing A while a split time is indicated will stop the elapsed time operation, causing the hands to
jump to the stop time.
Note
x The 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.
x The display illustration on page E-35 shows a stopwatch reading of 20 minutes, 45.10 seconds.
x Pressing B will not perform a reset operation while the hands are moving to elapsed timekeeping after
you enter the Stopwatch Mode.
x The
,
Lower Dial Hand indicates the 1/20 (0.05)-second count for the fi rst 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
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).
x Entering the Stopwatch Mode will cause the
,
Lower Dial Hand to move
to 0.
To measure elapsed time
A
A B
Start Stop Reset
x Pressing A to restart the stopwatch without resetting it will resume the elapsed time operation from
where it was last stopped.
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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 A for about three seconds.
x This 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.
x The x
x
Second Hand will point to the new Home City (NEW YORK in this example) for about one
second.
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.
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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.
x Each 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.
x Whenever 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.
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-24) to correct the Home City settings.
3. Hold down A for about one second to cycle through the summer time settings as shown below.
x Selecting 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 display 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).
x Entering 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 fi rst click
x The
x
Second Hand points to the currently selected World Time city code.
x The
,
Lower Dial Hand will indicate AT (AUTO), STD (standard time) or DST (daylight saving time),
which indicates the current daylight saving time setting.
x Leaving 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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