1879-1
Module No.1879
GENERAL GUIDE
• If the contents of the display seem to be continually changing, see “AUTO DISPLAY FUNCTION” for information on how to stop it.
• Press
CC
CC
C to change from mode to mode.
• In any mode, press
LL
LL
L to illuminate the display for about 1 second.
About the backlight
In any mode, press
LL
LL
L to illuminate the display for about 1 second.
• The backlight of the watch employs an electro-luminescent (EL) light, which loses
illuminating power after very long use.
• The illumination provided by the backlight may be hard to see when viewed under
direct sunlight.
• The watch will emit an audible sound whenever the display is illuminated. This is
caused by a transistor that vibrates when the EL panel lights up. It does not indi-
cate malfunction of the watch.
• The backlight automatically turns off whenever an alarm sounds.
SETTING TIME AND DATE
1)Press
BB
BB
B in the Timekeeping Mode to set correct time.
2)Press
AA
AA
A with a time tone to correct seconds.
3)Press
CC
CC
C to shift flashing digit(s).
Digit(s) to be changed will flash.
4)Each press of
AA
AA
A increases digit by one.
Hold down for rapid advance.
5)Press
BB
BB
B twice to complete setting.
Note: If you use any other mode within 30 seconds while the calculation is carried
out, your new entries may fail to be inputted.
(This operation, however, should never damage your watch.)
SETTING LOCATION DATA
1)Press
BB
BB
B twice in the Timekeeping Mode to
set new location data.
Set time difference from GMT, longitude and
latitude.
2)Press
AA
AA
A to advance hour.*
3)Press
CC
CC
C to set longitude.
Press
AA
AA
A or
DD
DD
D to change the longitude digits.*
4)Press
CC
CC
C to set latitude.
Press
AA
AA
A or
DD
DD
D to change the latitude digits.*
*Hold down for a few seconds for rapid ad-
vance.
5)Press
BB
BB
B to complete.
The display automatically returns to the Timekeeping Mode, if left unused for a few
minutes.
Note: If you use any other mode within 30 seconds while the calculation is carried
out, your new entries may fail to be inputted.
Seconds
Day of week Day Month
Hour Minutes
Year
Press
Press
Press
Press
MOON GRAPH DISPLAY
Moon Age
Display
Moon Age
Time elapsed in days from the new moon is called the moon age.
Moon
New Moon
First Quarter
Full Moon
Last Quarter
New Moon
Phase (0.0) (7.4) (14.8) (22.1) (29.5)
Moon
0.0 1.9 5.6 9.3 13.0 16.7 20.3 24.0 27.7
~~~~~~~~~
age
1.8 5.5 9.2 12.9 16.6 20.2 23.9 27.6 29.5
Moon angle
The hour angle of moon tells in
what direction the moon is seen.
Example
In the example at left, the moon has passed the meridian.
If you look above the moon near the equator, the moon is
seen at west. In Northern hemisphere the moon is seen at
west from the south. In Southern hemisphere, the moon is
seen at west from the north.
12 1218 0 6
11.5 ~ 12.5
12.5 ~ 13.5
13.5 ~ 14.5
14.5 ~ 15.5
15.5 ~ 16.5
16.5 ~ 17.5
17.5 ~ 18.5
18.5 ~ 19.5
19.5 ~ 20.5
20.5 ~ 21.5
21.5 ~ 22.5
22.5 ~ 23.5
23.5 ~ 0.5
0.5 ~ 1.5
1.5 ~ 2.5
2.5 ~ 3.5
3.5 ~ 4.5
4.5 ~ 5.5
5.5 ~ 6.5
6.5 ~ 7.5
7.5 ~ 8.5
8.5 ~ 9.5
9.5 ~ 10.5
10.5 ~ 11.5
11.5 ~ 12.5
12 1218 0 6
USING FISHING TIME MODE
Press
CC
CC
C to get to the Fishing Time Mode from Timekeeping Mode. Wait a few sec-
onds and the display automatically starts to show the following:
1)Time of each moon hour angle, alternatively between 0h, 6h, 12h and 18h, 2) Moon
age, 3) Moon phase.
? ? ? ?
1)Time of
each moon
hour angle
(18h)
Fishing time indicator
1)Time of
each moon
hour angle
(0h)
1)Time of
each moon
hour angle
(6h)
1)Time of
each moon
hour angle
(12h)
2)Moon age
3)Moon phase
If the fishing times on other days are required, press
AA
AA
A (+ one day) or
DD
DD
D (– one day) in the Fishing Time
Mode to set the required date. Hold down for rapid
advance. When the required date is correctly set,
wait approx. 20 seconds. The display will auto-
matically show the following data for the required
date: 1) time of each moon hour angle, alternative-
ly between 0h, 6h, 12h and 18h, 2) moon age, 3)
moon phase.
*As the value of moon hour angle is based on the
movement of the moon and not the sun, the fourth
fishing time data (for 18h) may be missed. In such
a case, the display will appear as below:
Note: Fishing time is indicated
by 5 minutes unit.
?
?
– one day
+ one day
It is well known from the long experience of fishermen that movement of the moon
and tides affect fish. In the United States there exist many fishing time theories
based on the movement of the moon.
Data displayed is astronomical information on the moon.
Take the challenge to fish using this data.
Relationship between hour angles of moon, moon age and fish marks
Moon phases
New moon
Full moon
First quarter
Last quarter
Others
No indication
0h or 12h 6h or 18h
Hour angles of
moon is other
than 0h, 6h, 12h
and 18h.
Hour angles
of moon
12 1218 0 6
12 1218 0 6
Press
CC
CC
C
?
??
Timekeeping Mode Fishing Time Mode Sunrise & Sunset Mode Stopwatch ModeAlarm Mode
Press
CC
CC
CPress
CC
CC
CPress
CC
CC
CPress
CC
CC
C
Hour angle of moon
Moon phase
Month – Day
Changes between
12-/24-hour formats.
Hour
PM
Minutes
Seconds
Pressed to view
Sunrise & Sunset
Mode.
Day of week
To Next Page
Need help?
General
