1. sports
2. trekking

WJ81 User s Guide
Setting and How To Use Compass Function ※1
This User s Guide describes how to use SOMA WJ81 features; Compass, Altimeter,
Chronograph, Altitude and Hydration Alarms.
For more information, please see the Instruction Manual.
■Instruction on compass
■Watch functions (What you can do with SOMA WJ81)
SOMA WJ81 is a sports watch that measures bearings, altitudes, and weather using built-in sensors. The watch
also features a chronograph function that records up to a total of 50 laps as well as altitude and hydration alarms.
Time and Calendar function
Indicates the time and the calendar
in two time zones, and current
altitude.
Chronograph function
Stopwatch measures up to 1,000
hours.
Compass function
The digital compass allows you to
locate the current position.
Data Recall function
Indicates the total time, each lap
time/altitude, best lap, average lap
time, each of which is saved in the
CHRONOGRAPH.
Altitude function
You can display, store, or calibrate
the current altitude, as well as view
your maximum altitude and
accumulated altitudes.
Timer function
Up to 5 kinds (5 segments) of timers
can be set.
Weather Forecast function
Indicates air-pressure as well as
temperature, and plots a change in
air-pressure for the last 12 hours.
Alarm function
Setting of 4 time alarms, 2 altitude
alarms, and a hydration alarm is
available.
ADJUST (RESET) button
This button activates mode
selection or switching of settings.
LIGHT button
Use this button to turn on the backlight.
RECALL/＋ (START/LAP) button
Use this button to redisplay the
reading, start measuring, or adjust
values during setup.
NEXT/− (SAVE/STOP) button
Use this button to switch views, stop
measuring, or adjust values during
setup.
Ring tone mark
Alarm beep icon
Switching Mode Views
The mode changes each time you press
MODE. Keep MODE pressing until the mode
you want to select appears.
Pressing MODE for 1 second jumps to the
TIME mode.
❷ Press ADJUST for 2 seconds
The declining angle will blink.
❶
❸
❸
❹
❹
Turning on backlight
Press LIGHT. The backlight will come on.
Press LIGHT for 2 seconds .
The backlight remains lit for 15 seconds even if you
release the button.
Checking an alarm beep /Demonstration
Holding down the RECALL/＋ and NEXT/− buttons
simultaneously while the time display screen is
displayed enables you to view the word DEMO is
displayed, and hear the alarm beep . Then, you
can look at views in each mode via the
demonstration function (pressing any button causes
the display to return to the time display screen).
End of battery life warning
The battery indicator is usually on in the Mode
Name view. It goes off when the battery life is near
expiry. In the Time of Day view, all views blink to
alert you that the battery needs replacing.
2
seconds
Other functions
SOMA WJ81 does not have an alarm that sounds every hour.
❷
2
seconds
.
※ Declin … A shortened form of declination .
❸
2
seconds
④
●
❸ Press RECALL/＋ to increase the value in the direction of
the West.
Press NEXT/− to increase the value in the direction of the
East. Identify the declining angle at the current position
(example: W6 for Tokyo) using a map. Adjust the value by
pressing either of the buttons.
❹
2
seconds
❶ Press RECALL/＋( START/ LAP) to start measurement.
❷ Press RECALL/＋(START/LAP) to record LAP 1
measurement. LAP No. will blink for 7 seconds.
Each time you press RECALL/＋(START/LAP), the
respective LAP time is recorded and the next lap
measurement starts.
※Up to 50 laps can be recorded.
※Each time you press RECALL/＋(START/LAP), the respective
altitude is also recorded.
❸ Press NEXT/−(STOP/SAVE) to stop measurement and
finish a RUN.
When you want to save this RUN To step ❹.
When you want to delete this RUN To step ④.
※You need to stop measuring to save or delete a RUN.
❹ Press NEXT/−(STOP/SAVE) for 2 seconds
RUN.
④ Press ADJUST (RESET) for 2 seconds
RUN.
2
seconds
2
seconds
to save the
to reset the
Setting and How To Use Altimeter (Altitude) Function ※4
■How to view altitudes
❷
Setting and How To Use Alarm Function ※2
■Altitude and hydration alarm setting
❶
2
seconds
❷
❸
❸
❹
❶
❶ Alarm series number
changes each time you
press NEXT/−. Series
number from 1 to 4 is the
time alarm;
from 5 to 6 is the altitude
（ALTI）
（H20）
alarm; number 7 is the
Altitude Alarm
Hydration Alarm
hydration alarm.
Keep NEXT/− pressing
until the series number you want to set appears.
❷ Press ADJUST for 2 seconds
What is RECALL?
RECALL is a function
that lets you redisplay
views or recall data.
Setting the ON-OFF ring tone to confirm operation
The ring tone mark will appear or disappear each
time you press RECALL/＋ while the time display
screen is displayed. A ring tone sounds when the
ring tone mark is on.
❶
❶ Press MODE to show the COMP view (the digital arrow
will then move).
❷
2
seconds
In 12-hour setting, A indicates a.m.
times; P indicates p.m. times.
MODE button
Use this button to select a mode or
switch setting items.
■Measurement start, stop, save, and reset
■Declination setting at current position
❹ Press ADJUST to set the declining angle and RECALL/＋
to confirm it (0 is not displayed).
■Description of parts and switching mode views
Battery icon
SouthEast
In COMPASS mode, the digital arrow points
due north as shown in the figure at right. The
display shows the directional heading and angle
in the 12 o clock direction. Keep the watch level
to ensure accurate information is displayed.
N
The COMPASS works for only 20 seconds. When you want to restart the COMPASS, press North direction
RECALL/＋.
Product Features
■Functions of modes
Setting and How To Use Chronograph Function ※3
2
seconds
※Up to 60 minutes in unit of minutes can be set in the hydration alarm.
❷ In ALTITUDE mode, the current altitude, ascent/descent
rate, and change in the altitude are displayed. Pressing
RECALL/＋ will start the scrolling of Accumulated Altitude
(ACC) and Maximum Altitude (MAX) on the top row.
Change in altitude
Current altitude
❸
Ascent/descent
rate
2
seconds
❸ Press NEXT/− for
2 seconds 2 to switch over
the display of the altitude
unit between meter and
feet.
seconds
. The value will blink.
❸ Press RECALL/＋. The blinking value will increase. Press
NEXT/−. The blinking value will decrease. Please adjust
the value by pressing these buttons.
❶ Press MODE to show the ALTI view.
■Setting the current altitude
2
seconds
❶ Press ADJUST for 2 seconds
blink.
❶
2
seconds
. The current altitude will
❹ Press ADJUST to save the alarm setting and turn the
alarm ON.
※The hydration alarm cannot be automatically turned on even
when saved.
❷
If you want to continue setting any alarm, please start
steps ❶ through ❹ again.
※1 For more details on how to use the Compass function, see Page E16 in the SOMA WJ81
Instruction Manual.
※2 For more details on how to use the Alarm function, see Page E44 in the SOMA WJ81
Instruction Manual.
※3 For more details on how to use the Chronograph function, see Page E34 in the SOMA
WJ81 Instruction Manual.
※4 For more details on how to use the Altimeter function, see Page E20 in the SOMA WJ81
Instruction Manual.
❷
❸
❷ Press RECALL/＋. The blinking value will increase.
Press NEXT/−. The blinking value will decrease.
Please adjust the values by pressing either of these
buttons.
❸ Press ADJUST to set the current altitude.