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Operation Guide 5143
E-29
>
Timekeeping Mode
Stopwatch Split Mode
(Elapsed time and
split times)
Alarm Mode Countdown Timer Mode
Mode pointer points to TM.
Mode pointer points to ST.
Then
v
Mode Disk rotates
until the split pointer points
to STP (stopped) or RUN
(running).
Mode pointer points to AL. Mode pointer points to TR.
Press the crown
button. (No need to
unlock crown.)
World Time Mode
Mode pointer points to WT.
E-28
To select a mode
Each press of the crown button cycles through the modes in the sequence shown
below. The
v
Mode Disk rotates so the selected mode is indicated by the mode
pointer.
Movement of the
v
Mode Disk may cause the watch hands to move slightly. This is
due to fi ne adjustment of hand positions and does not indicate malfunction.
E-27
Selecting a Mode
With this watch, everything starts from the Timekeeping Mode.
To determine the watch’s current mode
Check what the mode pointer is indicating on the
v
Mode
Disk as shown under “To select a mode” (page E-28).
To return to the Timekeeping Mode from any other
mode
Press and hold the crown button (without unlocking the
crown) for at least two seconds.
>
E-26
Split Pointer
The split pointer is marked on the
v
Mode Disk. Whenever you enter the Stopwatch
Split Mode (page E-46), 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-25
To do this: Enter this mode: See:
View the current time in one of 29 cities around the
globe
World Time Mode E-66
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) and summer time (DST).
E-24
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
Confi gure time and date settings x
Timekeeping Mode E-31
Measure elapsed time and split times
Stopwatch Split Mode
(split measurement)
E-46
Measure elapsed time and lap times, and recall lap
times
Stopwatch Lap Mode
(lap measurement)
E-52
Use the countdown timer Countdown Timer Mode E-56
Set an alarm time Alarm Mode E-61
E-23
To recover from the sleep state
Move the watch to a well-lit area, press any button, or perform a crown operation
(push in, pull out, rotate).
E-22
Power Saving
Power Saving enters a sleep state automatically whenever the watch is left for a
certain period in an area where it is dark. The table below shows how watch functions
are affected by Power Saving.
There actually are two sleep state levels: “second hand sleep” and “function sleep”.
x
Elapsed Time in Dark Operation
60 to 70 minutes (second hand
sleep)
x
x
Second Hand only stopped, all other functions
enabled
6 or 7 days (function sleep)
All functions, including analog timekeeping, disabled x
World Time Mode time stopped at the point the x
Timekeeping Mode time reached 0:00
The watch will not enter a sleep state between 6:00 AM and 9:59 PM. If the watch x
is already in a sleep state when 6:00 AM arrives, however, it will remain in the sleep
state.
The watch will not enter a sleep state while it is in the Stopwatch Split Mode,
x
Stopwatch Lap Mode, or Countdown Timer Mode.
E-21
Charging Times
Exposure Level (Brightness)
Daily
Operation
*1
Level Change *2
Level 3 Level 2 Level 1
Outdoor sunlight (50,000 lux) 8 minutes 3 hours 28 hours
Window sunlight (10,000 lux) 30 minutes 7 hours 105 hours
Window sunlight on cloudy day (5,000 lux) 48 minutes 10 hours 169 hours
Indoor fl uorescent lighting (500 lux) 8 hours 120 hours – – –
1 Approximate exposure each day to generate power for normal daily operation. *
2 Approximate exposure to take power up one level. *
The above times are for reference only. Actual times depend on lighting conditions.
x
For details about the operating time and daily operating conditions, see the “Power x
Supply” section of the Specifi cations (page E-83).
E-20
Power Recovery Mode
The watch is designed to go into a power recovery mode that stops hand operation
temporarily whenever power suddenly drops below a certain level due to overuse
of the alarm tone over a short period. Note that all operations are disabled while the
watch is in the power recovery mode.
The hands will move to the correct positions and the watch will resume normal
operation after power recovers (in about 15 minutes). Putting the watch in a location
where it is exposed to light will help power to recover sooner.