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Operation Guide 3218 3289
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
Moon Phase indicator
use the procedure under "To reverse the displayed Moon
phase" (page E-24) to change the indicator.
E-50
Moon phase (part you can see)
*1
Moon
Phase
Indicator
*2
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
Moon Age
Full
Moon
Moon Phase
*1: Dark figures on a light background
*2: Light figures on a dark background
E-52
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.
Tide Name
Graph
Spring Tide
Intermediate Tide
Neap Tide
E-54
Graphic Area
The information shown in the graphic area depends on the current mode.
Mode
Graphic Area
Timekeeping Mode
World Time Mode
Alarm Mode
Stopwatch Mode
CountdownTimer Mode
E-56
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
Display
in Dark
60 to 70 minutes
Blank, with Power Saving
indicator flashing
6 or 7 days
Blank, with Power Saving
indicator not flashing
Wearing the watch inside the sleeve of clothing can cause it to enter the sleep state.
E-58
(part you cannot see)
Last
Quarter
(Waning)
Description
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.
Graphic Area
Timekeeping Mode seconds
Timekeeping Mode seconds
No indication
Stopwatch Mode 1/10 seconds
CountdownTimer Mode seconds
Operation
All functions enabled, except for the
display
Beeper tone, illumination, and display
are disabled.
(part you cannot see)
*1
Moon
Phase
Indicator
*2
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
Moon Age
0.0-0.9
New
Moon
Moon Phase
*1: Dark figures on a light background
*2: Light figures on a dark background
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.
The Tide Graph flashes as shown below to indicate the tide range.
High tide
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".
Button Operation Tone
The button operation tone sounds any time you press one
Mute indicator
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
code starts to flash, which indicates the setting screen.
2. Press
nine times until the current button operation
tone setting (
3. Press
to toggle the setting between
and
(tone off).
4. Press
to exit the setting screen.
The mute indicator is displayed in all modes when the
button operation tone is turned off.
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.
Angle the watch towards your face for reading (page E-40).
To turn Power Saving on and off
1. In the Timekeeping Mode, hold down
code starts to flash, which indicates the setting screen.
2. Press
11 times until the Power Saving on/off screen
appears.
3. Press
to toggle Power Saving on (
(
).
4. Press
to exit the setting screen.
On/Off status
The Power Saving indicator is on the display in all
modes while Power Saving is turned on.
Moon phase (part you can see)
First
Quarter
(Waxing)
E-51
E-53
Low tide
E-55
until the city
or
) appears.
(tone on)
E-57
until the city
) and off
E-59
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