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Operation Guide 5142
E-39
Split Pointer
The split pointer is marked on the
v
Mode Disk. Whenever you enter the Stopwatch
Split Mode (page E-63), it indicates the current status of the stopwatch operation.
While a normal stopwatch elapsed time measurement operation is in progress, the
split pointer will point to RUN. When a split time is indicated by the hands (which are
temporarily stopped), the split pointer will point to SPL. Stopping the elapsed time
measurement operation will cause the split pointer to move to STP (stop).
Lap Pointer
The lap pointer is marked on the
v
Mode Disk. Whenever you press B to perform
lap time measurement in the Stopwatch Mode, the
v
Mode Disk will rotate so the
lap pointer points at the current lap number (1 through 5). If the current lap number is
greater than 5, the lap pointer will point at
.
E-38
To do this: Enter this mode: See:
Set an alarm time Alarm Mode E-78
View the current time in one of 29 cities around the
globe
World Time Mode E-83
Mode Disk Pointers
The v
v
Mode Disk uses three different pointers to indicate a variety of different
information: a mode pointer, a split pointer, and a lap pointer.
Mode Pointer
The mode pointer is in a fi xed position. Whenever you enter a mode, the v
v
Mode
Disk will rotate until the current mode indicator (AL, TR, ST, TM, or WT) is aligned
with the mode pointer. The mode pointer is also used for indication of standard time
(STD or STD-AT) and daylight saving time (DST or DST-AT).
E-37
Mode Reference Guide
Your watch has six “modes”. The mode you should select depends on what you want
to do.
To do this: Enter this mode: See:
View the current time in your Home City and in one of x
29 other cities around the globe
View the current date in the Home City x
Confi gure Home City and daylight saving time (DST) x
settings
Perform a time calibration receive operation x
Confi gure time and date settings manually x
Timekeeping Mode E-44
Measure elapsed time and split times
Stopwatch Split Mode
(split measurement)
E-63
Measure elapsed time and lap times, and recall lap
times
Stopwatch Lap Mode
(lap measurement)
E-69
Use the countdown timer Countdown Timer Mode E-73
E-36
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 the date and day of the week automatically for
x
the period January 1, 2000 to December 31, 2099. Updating of the date 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-105).
The receive operation is disabled under any of the following conditions. x
While power is at Level 2 or lower (page E-18) −
While the watch is in the power recovery mode (page E-20) −
While the watch is in the function sleep state (power saving, page E-22) −
While a countdown time operation is in progress (page E-73) −
A receive operation is cancelled if an alarm sounds while it is being performed. x
E-35
Note
To interrupt a receive operation and return to the Timekeeping Mode, press
x
any button.
To check the result of the latest receive operation
In the Timekeeping Mode, press B.
The
x
x
Second Hand will move to Y (YES) for about one
second if the latest receive operation was successful,
or N (NO) if it was not. After that, regular timekeeping
will resume.
You can return to the Timekeeping Mode manually by
x
pressing B while the
x
Second Hand is pointing to Y
(YES) or N (NO).
Note
The
x
x
Second Hand will indicate N (NO) if you have
adjusted the time or date setting manually since the
latest receive operation.
@
E-34
The 2.
x
Second Hand indicates the operations the watch is currently performing.
When the x
x
Second Hand is
pointed here:
It means this:
R (READY)
Watch is setting up for reception.
W (WORK) Reception is in progress.
Y (YES)
Reception was completed
successfully.
N (NO)
Reception failed for some reason.
If signal reception is unstable, the x x
x
Second Hand
may move between W (WORK) and R (READY).
When the receive operation is successful, the watch
x
adjusts the time setting accordingly, and then
resumes normal timekeeping. It does not adjust the
setting if the operation failed.
@
E-33
To perform manual receive
In the Timekeeping Mode (page E-44), keep 1. B depressed (for about two seconds)
as the
x
Second Hand goes through the following sequence.
Moves to x Y (or YES for some models) or N (NO) to indicate the last signal
reception result, then to R (READY).
E-32
What you should do next depends on whether you are using Auto Receive or 3.
Manual Receive.
Auto Receive: Leave the watch over night in the location you selected in step 2.
x
See “Auto Receive” on page E-32 for details.
Manual Receive: Perform the operation under “To perform manual receive” on x
page E-33.
Auto Receive
With Auto Receive, the watch performs the receive operation each day
x
automatically up to six times (up to fi ve times for the Chinese calibration signal)
between the hours of midnight and 5 a.m. (according to the Timekeeping Mode
time). When any receive operation is successful, none of the other receive
operations for that day are performed.
When a calibration time is reached, the watch will perform the receive operation
x
only if it is in the Timekeeping Mode. The receive operation is not performed if a
calibration time is reached while you are confi guring settings.
E-31
Signal reception may be diffi cult or even impossible under the conditions x
described below.
Inside or
among
buildings
Inside a
vehicle
Near
household
appliances,
offi ce
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
E-30
To get ready for a receive operation
Confi rm that the watch is in the Timekeeping Mode. If it isn’t, push in and hold the 1.
crown for at least two seconds to enter the Timekeeping Mode.
Place the watch in a location where signal reception is good.2.
12 o’clock
or
Position the watch as shown in the x
nearby illustration, with 12 o’clock
pointed towards a window. Make
sure there are no metal objects
nearby.
Signal reception normally is better
x
at night.
The receive operation takes from x
two to seven minutes, but in some
cases it can take as long as 14
minutes. Take care that you do not
perform any button operation or
move the watch during this time.