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E-28 Confi guring Current Time and Day Settings Manually
E-28
To change the current time setting manually
E-30
To change the current day setting manually
E-32 Taking Direction Readings
E-33
To take a direction reading
E-37
To perform bidirectional calibration
E-38
To perform northerly calibration
E-42 Checking the Current Time in a Different Time Zone
E-43
To view the time in another time zone
E-45
To swap your Home City and World Time City
E-46 Using the Stopwatch
E-47
To enter and exit the Stopwatch Mode
E-47
To perform an elapsed time operation
E-47
To perform lap time measurement
E-48
To recall lap data
E-49 Using the Countdown Timer
E-50
To specify the countdown start time
E-51
To perform a countdown timer operation
E-51
To stop the alarm
E-8
Charging the Watch
The face of the watch is a solar panel that generates power from light. The generated power charges a
built-in rechargeable battery, which powers watch operations. The watch charges whenever it is exposed
to light.
Charging Guide
Whenever you are not wearing
the watch, be sure to leave it in a
location where it is exposed to light.
Best charging performance
is achieved by exposing the
watch to light that is as strong as
possible.
Warning!
Leaving the watch in bright light for charging can cause it to become quite hot. Take care when
handling the watch to avoid burn injury. The watch can become particularly hot when exposed to
the following conditions for long periods.
On the dashboard of a car parked in direct sunlight
Too close to an incandescent lamp
Under direct sunlight
E-10
2. If about two seconds elapse without any operation being performed, the x Second Hand will then move
to the latest time calibration signal receive operation result.
See "To check the result of the latest receive operation" (page E-20).
3. Press B to return to regular timekeeping.
The watch will also return to regular timekeeping if you do not perform any operation for about
10 seconds.
Low Power
Low power conditions are indicated by the movement of the x Second Hand in
the Timekeeping Mode.
If the x Second Hand is moving normally at one-second intervals, power is
at Level 1.
If the x Second Hand is moving at two-second intervals, power is at Level
2, which is quite low. Expose the watch to light as soon as possible so it
can charge.
Low Battery Alert (Hand Movement and Function Status)
Level Hand Movement
1
Normal.
Moves at two-second
intervals.
x Second Hand moves at
2
two-second intervals.
3
x Second Hand stopped.
When power drops to Level 3, all settings (including timekeeping) will be cleared. Recharging the
battery will reset all settings to their initial factory defaults.
E-12
Power Saving
Power Saving enters a sleep state (second hand sleep or function sleep) whenever the watch is left for a
certain period in an area where it is dark.
Elapsed Time in Dark
Operation
60 to 70 minutes (second hand sleep)
x Second Hand only stopped at 12 o'clock, all other functions enabled
All functions, including analog timekeeping, disabled
6 or 7 days (function sleep)
Internal timekeeping maintained
The watch will not enter a sleep state between 6:00 AM and 9:59 PM. If the watch is already in a sleep
state when 6:00 AM arrives, however, it will remain there.
The watch will not enter a sleep state while it is in the Stopwatch Mode or Countdown Timer Mode.
To recover from the sleep state
Move the watch to a well-lit area or press any button.
E-14
Operation Guide 5325
When wearing the watch, makes
sure that its face is not blocked
from light by the sleeve of your
clothing.
The watch may enter a sleep
state (page E-14) if its face is blocked
by your sleeve even only partially.
Function Status
All functions enabled
Beeper and time calibration signal
reception disabled.
All functions disabled
E-52 Using the Alarm
E-53
To change the alarm time setting
E-54
To turn the alarm on or off
E-54
To stop the alarm
E-55 Adjusting Home Positions
E-56
To adjust home positions
E-57 Troubleshooting
E-64 Specifi cations
Important!
Keep the watch in an area normally exposed to bright light when storing it for long periods. This helps
to ensure that power does not run down.
Storing the watch for long periods in an area where there is no light or wearing it in such a way that it is
blocked from exposure to light can cause power to run down. Make sure that the watch is exposed to
bright light whenever possible.
Checking the Current Power Level
You can use the procedure below to determine the watch's current power level. Certain functions will be
disabled when the power level is low. If the power level is low, leave the watch in a location where its face
(solar panel) is exposed to light.
To check the current power level
1. In the Timekeeping Mode, press B. The x Second Hand will move to H (High), M (Mid), or L (Low) to
indicate the power level.
H: High
M: Mid
L: Low
When the watch is at Level 3, exposing it to light for a while will cause the x Second Hand to move to
the position of second 57. This indicates that charging has started.
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 continuous signal reception or other operations 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.
Charging Times
Exposure Level (Brightness)
Outdoor sunlight (50,000 lux)
Window sunlight (10,000 lux)
Window sunlight on cloudy day (5,000 lux)
Indoor fl uorescent lighting (500 lux)
* 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.
For details about the operating time and daily operating conditions, see the "Power Supply" section of
the Specifi cations (page E-65).
Radio Controlled Atomic Timekeeping
This watch receives a time calibration signal and updates its time setting accordingly. However, when
using the watch outside of areas covered by time calibration signals, you will have to adjust the settings
manually as required. See "Confi guring Current Time and Day Settings Manually" (page E-28) for more
information.
This section explains how the watch updates its time settings when the city code selected as the Home
City is in Japan, North America, Europe, or China, and is one that supports time calibration signal
reception.
If your Home City Code setting is this:
LON (LONDON), PAR (PARIS), ATH (ATHENS)
HKG (HONG KONG)
TYO (TOKYO)
HNL (HONOLULU), ANC (ANCHORAGE), LAX (LOS ANGELES),
DEN (DENVER), CHI (CHICAGO), NYC (NEW YORK)
Important!
The areas covered by HNL (HONOLULU) and ANC (ANCHORAGE) are quite far from the calibration
signal transmitters, so certain conditions may cause reception problems.
Level Change *2
Daily Operation
Level 3
Level 2
*1
8 minutes
2 hours
27 hours
30 minutes
6 hours
99 hours
48 minutes
10 hours
161 hours
8 hours
111 hours
The watch can receive the signal from the
transmitter located here:
Anthorn (England), Mainfl ingen (Germany)
Shangqiu City (China)
Fukushima (Japan), Fukuoka/Saga (Japan)
Fort Collins, Colorado (United States)
E-9
E-11
Level 1
– – –
E-13
E-15
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