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Operation Guide 3214
4
Charging Precautions
Certain charging conditions can cause the watch to become very hot. Avoid leaving
the watch in the areas described below whenever charging its rechargeable battery.
Also note that allowing the watch to become very hot can cause its liquid crystal
display to black out. The appearance of the LCD should become normal again when
the watch returns to a lower temperature.
Warning!
Leaving the watch in bright light to charge its rechargeable battery 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
Exposure Level (Brightness)
Outdoor Sunlight (50,000 lux)
Sunlight Through a Window (10,000 lux)
Daylight Through a Window on a Cloudy Day (5,000 lux)
Indoor Fluorescent Lighting (500 lux)
Approximate
Exposure Time
5 minutes
24 minutes
48 minutes
8 hours
Charging Guide
The following table shows the amount of time the watch needs to be exposed to light
each day in order to generate enough power for normal daily operations.
• For details about the battery operating time and daily operating conditions, see the
“Power Supply” section of the Specifications.
• Stable operation is promoted by frequent exposure to light.
Recovery Times
The table below shows the amount exposure that is required to take the battery from
one level to the next.
Approximate Exposure Time
Level 5 Level 4 Level 3 Level 2 Level 1
2 hours 22 hours 6 hours
9 hours 111 hours 30 hours
17 hours 226 hours 61 hours
199 hours - - - - - - - - - - - - - - - -
Exposure Level
(Brightness)
Outdoor Sunlight
(50,000 lux)
Sunlight Through a
Window (10,000 lux)
Daylight Through a
Window on a Cloudy
Day (5,000 lux)
Indoor Fluorescent
Lighting (500 lux)
• The above exposure time values are all for reference only. Actual required exposure
times depend on lighting conditions.
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Reference
This section contains more detailed and technical information about watch operation.
It also contains important precautions and notes about the various features and
functions of this watch.
Moon Phase Indicator
The Moon phase indicator of this watch indicates the
current phase of the Moon as shown below. It is based on
the view of the left side of the moon at meridian transit
from the northern hemisphere of the Earth. If the
appearance of the Moon phase indicator is reversed from
the actual Moon as viewed from your location, you can
use the procedure under “To reverse the displayed Moon
phase” to change the indicator.
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Moon Phase indicator
Moon phase (part you can see)
Moon Phase
Indicator
Moon Age
Moon Phase
New
Moon
First
Quarter
(Waxing)
28.7-29.8
1.0-2.7 2.8-4.6 4.7-6.4 6.5-8.3 8.4-10.1
10.2-12.0
12.1-13.8
0.0-0.9
(part you cannot see)
Moon Phase
Indicator
Moon Age
Moon Phase
(part you cannot see)Moon phase (part you can see)
13.9-15.7 15.8-17.5 17.6-19.4 19.5-21.2 21.3-23.1 23.2-24.9 25.0-26.8 26.9-28.6
Full
Moon
Last
Quarter
(Waning)
Tidal Movements
Tides are the periodic rise and fall of the water of oceans, seas, bays, and other
bodies of water caused mainly by the gravitational interactions between the Earth,
Moon and Sun. Tides rise and fall about every six hours. The Tide Graph of this watch
indicates tidal movement based on the Moon’s transit over a meridian and the lunitidal
interval. The Tide Graph calculates and graphically represents current tide conditions
in your Home City or a port city in the vicinity of the Home City based on longitudes,
lunar day length, and lunitidal interval preset in watch memory, and on high tide times
specified by you.
Tide Graph
The Tide Graph graphically represents the current tide condition using one of three
patterns that represent spring tide, intermediate tide, and neap tide, as shown below.
Large difference between high tide
and low tide. Occurs a few days
before and after a New Moon and Full
Moon.
Medium difference between high tide
and low tide.
Small difference between high tide
and low tide. Occurs a few days
before and after the first quarter and
last quarter of a half moon.
Tide Name Graph Description
Spring Tide
Intermediate Tide
Neap Tide
•
The Tide Graph flashes as shown below to indicate the tide range.
• The segments on either end of the Tide Graph flash during high tide.
Lunitidal Interval
Theoretically, high tide is at the Moon’s transit over the meridian and low tide is about
six hours later. Actual high tide occurs somewhat later, due to factors such as
viscosity, friction, and underwater topography. Both the time differential between the
Moon’s transit over the meridian until high tide and the time differential between the
Moon’s transit over the meridian until low tide are known as the “lunitidal interval”.
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High tide Low tide
Button Operation Tone
The button operation tone sounds any time you press one
of the watch’s buttons. You can turn the button operation
tone on or off as desired.
• Even if you turn off the button operation tone, alarms,
the Hourly Time Signal, and other beepers all operate
normally.
To turn the button operation tone on and off
1.In the Timekeeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
2.Press C nine times until the current button operation
tone setting (
or ) appears.
3.Press D to toggle the setting between
(tone on)
and
(tone off).
4. Press A to exit the setting screen.
• The mute indicator is displayed in all modes when the
button operation tone is turned off.
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Mute indicator
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Power Saving Function
When turned on, the Power Saving function enters a
sleep state automatically whenever the watch is left in an
area for a certain period where it is dark. The table below
shows how watch functions are affected by the Power
Saving function.
Power saving indicator
Elapsed Time
in Dark
60 to 70 minutes
6 or 7 days
Display
Blank, with Power Saving
indicator flashing
Blank, with Power Saving
indicator not flashing
Operation
All functions enabled, except for the
display
Beeper tone, illumination, and display
are disabled.
• Wearing the watch inside the sleeve of clothing can cause it to enter the sleep state.
• The watch will not enter the sleep state between 6:00 AM and 9:59 PM. If the watch
is already in the sleep state when 6:00 AM arrives, however, it will remain in the
sleep state.
To recover from the sleep state
Perform any one of the following operations.
• Move the watch to a well-lit area.
• Press any button.
To turn Power Saving on and off
1.In the Timekeeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
2.Press C 11 times until the Power Saving on/off screen
appears.
3.Press D to toggle Power Saving on (
) and off ( ).
4.Press A to exit the setting screen.
• The Power Saving indicator is on the display in all
modes while Power Saving is turned on.
On/Off status
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Auto Return
• If you do not perform any operation for about two or three minutes while a setting
screen (with a flashing setting) is on the display, the watch will exit the setting screen
automatically.
Scrolling
The B and D are used in various modes and setting screens to scroll through data
on the display. In most cases, holding down these buttons during a scroll operation
scrolls at high speed.
Initial Screens
When you enter the World Time Mode or Alarm Mode, the data you were viewing
when you last exited the mode appears first.