Operation Guide 5627
E-49
Battery:
One lithium battery (Type: CR1220)
Approximately 3 years on type CR1220 (assuming alarm operation 10 sec./day and
one illumination operation 1.5 sec./day)
Frequent use of the light shortens the battery life.
Specifications are subject to change without notice.
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Countdown Timer
Measuring unit: 1 second
Input range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
Other: Auto-repeat timing
Alarms:
3 Multi-function* alarms (1 with snooze feature); Hourly Time Signal
* Alarm type: Daily alarm, Date alarm, 1-month alarm, Monthly alarm
Dual Time:
Hour, minutes, seconds, a.m./p.m. (P)
Other: Daylight Saving Time (summer time)/Standard Time
Illumination:
LED (light-emitting diode); selectable illumination duration
(approximately 1.5 seconds or 3 seconds)
Other:
Button operation tone on/off
E-47
Specifications
Accuracy at normal temperature:
±30 seconds a month
Digital Timekeeping:
Hour, minutes, seconds, a.m./p.m. (P), month, day, day of
the week
Time format: 12-hour and 24-hour
Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099
Other: Daylight Saving Time (summer time)/Standard Time; Home Site data
settings (UTC differential, longitude)
Analog Timekeeping:
Hour, minutes (hand moves every 20 seconds)
Fishing/Moon Mode:
Fishing level for a specified date and time; Moon phase
indicator and Moon age for a specified date
Stopwatch
Measuring unit: 1/100 second
Measuring capacity: 23:59'59.99"
Measuring modes: Elapsed time, split time, two finishes
E-46
x
The year can be set in the range of 2000 to 2099.
x
The watch’s built-in full automatic calendar makes allowances for different
month lengths and leap years. Once you set the date, there should be no reason
to change it except after you have the watch’s battery replaced.
Illumination Precautions
x
Illumination may be hard to see when viewed under direct sunlight.
x
Illumination automatically turns off whenever an alarm sounds.
x
Frequent use of illumination runs down the battery.
E-45
Auto Return Features
x
If you leave a screen with flashing digits on the display for two or three minutes
without performing any operation, the watch automatically exits the setting
screen.
x
If you leave the watch in the Fishing/Moon Mode, Alarm Mode, and Hand
setting Mode for two or three minutes without performing any operation, it
automatically changes to the Timekeeping Mode.
Scrolling
The
B
and
D
buttons 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 through the data at high speed.
Timekeeping
x
Resetting the seconds to
00
while the current count is in the range of 30 to 59
causes the minutes to be increased by 1. In the range of 00 to 29, the seconds
are reset to
00
without changing the minutes.
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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.
x
The multi-function alarms and Countdown Timer Mode
alarm will sound even if the button operation tone is
turned off.
To turn the button operation tone on and off
In any mode (except when a setting screen is on the display), hold down
C
to toggle
the button operation tone on (
not displayed) and off (
displayed).
x
Holding down
C
to turn the button operation tone on or off also causes the
watch’s current mode to change.
x
The
indicator is displayed in all modes when the button operation tone is
turned off.
E-43
x
The Moon phase indicator shows the Moon as viewed at noon from a position in
the Northern Hemisphere looking south. Note that at times the image shown by
the Moon phase indicator may differ from that of the actual Moon in your area.
x
The left-right orientation of the Moon phase is reversed when viewing from the
Southern Hemisphere or from a point near the equator.
Moon Phases and Moon Age
The Moon goes through a regular 29.53-day cycle. During each cycle, the Moon
appears to wax and wane as the relative positioning of the Earth, Moon, and Sun
changes. The greater the angular distance between the Moon and the Sun,* the more
we see illuminated.
* The angle to the Moon in relation to the direction at which the Sun is visible from
the Earth.
This watch performs a rough calculation of the current Moon age starting from day 0
of the moon age cycle. Since this watch performs calculations using integer values
only (no fractions), the margin for error of the displayed Moon age is ±1 day.
E-42
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.
(part you cannot see)
Moon phase (part you can see)
Moon
Phase
Indicator
Moon Age
0.0 - 1.8
27.7 - 29.5
1.9 - 5.5
5.6 - 9.2
9.3 - 12.9 13.0 - 16.6 16.7 - 20.2 20.3 - 23.9 24.0 - 27.6
Moon
Phase
New
Moon
First
Quarter
(Waxing)
Full
Moon
Last
Quarter
(Waning)
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To specify the illumination duration
1. In the Timekeeping Mode, hold down
A
until the
seconds start to flash, which indicates the setting
screen.
2. While the seconds are flashing, press
B
to toggle
the illumination duration between 1.5 seconds ( ) and
3 seconds ( ).
3. Press
A
twice to exit the setting screen.
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Illumination
Two LEDs (light-emitting diodes) and a light guide panel
illuminate the face of the watch for easy reading in the
dark.
x
See “Illumination Precautions” (page E-46) for more
important information.
To illuminate the face of the watch
In any mode (except when a setting screen is on the
display), press
B
to illuminate the face of the watch.
x
You can use the procedure below to select either
1.5 seconds or 3 seconds as the illumination duration.
When you press
B
, the illumination will remain on for
about 1.5 seconds or 3 seconds, depending on the
current illumination duration setting.