Casio 5470 User manual

Basic Operations
This section provides an overview of the watch
and explains operations that are common to
all modes.
Important!
●This watch is not a special-purpose
measuring instrument.
Measurement function readings are
intended for general reference only.
●Whenever using the Digital
Compass of this watch for serious
trekking, mountain climbing, or other
activities, be sure to always take
along another compass to confirm
readings. If the readings produced
by the Digital Compass of this watch
are different from those of the other
compass, perform bidirectional
calibration of the Digital Compass to
ensure better accuracy.
ーCompass readings and
calibration will not be possible if
the watch is in the vicinity of a
permanent magnet (magnetic
accessory, etc.), metal objects,
high-voltage wires, aerial wires, or
electrical household appliances
(TV, computer, cellphone, etc.)
lDigital Compass
●The watch’s Altimeter Mode
calculates and displays relative
altitude based on barometric
pressure readings produced by its
pressure sensor. Because of this,
altitude values displayed by the
watch may be different from your
actual elevation and/or sea level
elevation indicated for the area
where you are located. Regular
calibration in accordance with the
local altitude (elevation) indications
is recommended.
lAltitude Measurement
Note
●In this manual, the expression “time
signal” refers to a time calibration
signal. Time signals include time
information.
●Note that the watch illustrations in
this manual are intended for
reference only. The actual watch
may appear somewhat different
than depicted in the illustrations.
MA1509-EA © 2015 CASIO COMPUTER CO., LTD.
General Guide
③①②
⑥
⑤
④
AHour hand
BSecond hand
CMinute hand
DMode hand
ELCD
FCrown
Indicators
①②③ ④ ⑤
AAppears when an alarm is turned on.
BAppears when the hourly time signal is on.
CAppears when the indicated time is
summer time.
DAppears when Barometric Pressure
Change Indications are on.
EShows the barometric pressure
measurement unit.
Navigating Between Modes
Your watch has the modes shown below.
B
B
B
B
B
B
A
BABC
C
B
B
B
Receive Mode
World Time Mode
Alarm Mode
Timer ModeStopwatch Mode
Data Recall Mode
Thermometer Mode
Barometer Mode
Digital Compass ModeAltimeter Mode
Timekeeping Mode
Use the buttons in the illustration above to
navigate between modes.
Important!
●To return to the Timekeeping Mode
from any other mode, hold down the
(B) button for about two seconds.
Operation Guide 5470
1

Selecting a Timekeeping
Mode Digital Display Format
In the Timekeeping Mode, you can use the
operation below to change the contents of the
digital displays.
pD
pD
D
Day of the week,
month, day
Hour, minute, second
Barometric pressure
graph
Using the Crown
The watch’s crown is a screw-in (screw lock)
type. To use the crown, you first need to rotate
it towards you (leftwards) to loosen it.
Loosen
Crown
●Pulling Out and Pushing In the Crown
Pull out the crown before performing crown
operations. Do not pull the crown with too
much force.
Normal timekeeping
Pull out
Important!
●To prevent loss of water resistance
and/or damage due to impact, be
sure to screw the crown in by rotating
it away from you as you push it in.
Screw in
●When pushing the crown back in,
take care not to apply too much
force.
●Fast Forward/Fast Reverse
After pulling out the crown, rotating it quickly
in succession in either direction will start a fast
forward or fast reverse operation. While a fast
forward operation is in progress, quickly
rotating the crown in succession again will
increase the speed even further.
●The fast reverse operation speed is fixed
and cannot be changed.
●Stopping Fast Forward/Fast Reverse
Rotate the crown in the direction opposite that
of the ongoing operation or press any button.
Note
●If you do not perform any operation
for about two minutes after pulling
out the crown, crown operations will
automatically become disabled. If
that happens, push the crown back
in and then pull it out again.
●The message [PUSH] will appear on
the display in the cases below. If that
happens, push the crown back in
and then pull it out again.
ーWhen the crown is pulled out while
in a mode that does not support
crown operation
ーWhen you do not perform any
operation for about two minutes
after pulling out the crown
Shifting the Hands
Hand shift moves the hands out of the way for
easy viewing of display info.
1. While holding down (L), press (B).
●All hands will move to 2 o’clock.
2. To return the hands to their normal
timekeeping positions, press (A), (B), (C),
or (D).
Note
●This function can be used in any
mode.
ーHand shift cannot be used while
configuring the city code or the
summer time setting, or when
manually configuring time and
date settings.
●Shifted hands will return to their
normal positions if no button
operation is performed within about
ten seconds after hands are shifted.
●In the modes below, hands that are
blocking a digital display will
automatically move to 4 o’clock or 8
o’clock. The hands will return to their
normal positions after about three
seconds.
ーAltimeter Mode
ーBarometer Mode
ーThermometer Mode
Operation Guide 5470
2

Switching between 12-hour
and 24-hour Timekeeping
1. Pull out the crown.
The second hand will move to the
currently set city.
Crown
2. Press (B) five times so the current setting
([12H] or [24H]) is flashing on the display.
3. Rotate the crown to select [12H] (12-hour
timekeeping) or [24H] (24-hour
timekeeping).
4. Push the crown back in to complete the
setting operation.
Note
●While 12-hour timekeeping is
selected, the [A] indicator will be
displayed for a.m. times, and [P] will
be displayed for p.m. times.
Solar Charging
What is solar charging?
This watch runs on power supplied from a
rechargeable (secondary) battery that is
charged by a solar panel. The solar panel is
integrated into the face of the watch, and
power is generated whenever the face is
exposed to light.
Charging the Watch
When you are not wearing the watch, put it in
a location where it is exposed to bright light.
While you are wearing the watch, make sure
that its face (solar panel) is not blocked from
the light by the sleeve of your clothing. Power
generation efficiency is reduced even when
the face of the watch is blocked only partially.
NOYES
Important!
●Depending on light intensity and
local conditions, the watch may
become hot to the touch when
exposed to light for charging. Take
care to avoid burn injury after
charging. Also, avoid charging the
watch under high-temperature
conditions like the ones described
below.
ーOn the dashboard of a vehicle
parked in the sun
ーNear an incandescent light bulb or
other source of heat
ーUnder direct sunlight or in other
hot areas for long periods
●The display panel may become
black (or white, depending on the
LCD type) under very high
temperatures. This is temporary,
and the display will return to normal
at lower temperatures.
Checking the Charge Level
A display indicator shows the watch’s charge
level when you enter the Timekeeping Mode.
lNavigating Between Modes
●The display will show charge levels 4 and 5,
even if the watch is not in the Timekeeping
Mode.
●Charge Level 1: Good
All functions enabled.
●Charge Level 2: Good
All functions enabled.
●Charge Level 3: Low
The functions below are disabled. Also, the
second hand jumps at two-second intervals.
●Time signal reception
●Compass, altitude, barometric pressure,
temperature measurements
●Face illumination
●Sounds (alarms, etc.)
One second later
●Charge Level 4: Low
Battery charge is lower than Level 3, and all
functions are disabled. Also, all hands are
stopped.
●Charge Level 5: Dead
All hands are stopped and digital displays are
blank. Memory data is lost, and watch settings
are returned to their initial factory defaults.
Operation Guide 5470
3

Important!
●Should battery go low or go dead,
expose the face (solar panel) to light
as soon as possible.
Note
●If [RECOVER] is flashing on the
display, it means that all functions
are disabled due to momentary
battery power consumption.
Charging Times
The table below shows general guidelines for
charging times under various light sources.
Actual charging time depends on your local
environment.
●Sunny day, outdoors (50,000 lux)
Charge Level Approximate
Charging Time
Level 1 Good 6 hours
Level 2 Good 23 hours
Level 3 Low Battery
3 hoursLevel 4 Low Battery
Level 5 Dead Battery
●Sunny day, near a window (10,000 lux)
Charge Level Approximate
Charging Time
Level 1 Good 23 hours
Level 2 Good 85 hours
Level 3 Low Battery
7 hoursLevel 4 Low Battery
Level 5 Dead Battery
●Overcast day, near a window (5,000 lux)
Charge Level Approximate
Charging Time
Level 1 Good 37 hours
Level 2 Good 138 hours
Level 3 Low Battery
11 hoursLevel 4 Low Battery
Level 5 Dead Battery
●Indoor fluorescent lighting (500 lux)
Charge Level Approximate
Charging Time
Level 1 Good -
Level 2 Good -
Level 3 Low Battery
121 hoursLevel 4 Low Battery
Level 5 Dead Battery
Power Saving Function
Leaving the watch in a dark location for about
one hour between the hours of 10 p.m. and 6
a.m. will cause the second hand to stop, and
the watch to enter Level 1 power saving. If the
watch is left in this condition for six or seven
days, all hands will stop at 12 o’clock and the
watch will enter Level 2 power saving.
Power Saving Level 1:
Second hand stops and digital displays go
blank to save power.
Power Saving Level 2:
All hands stop and the digital display goes
blank to save power. Only timekeeping
functions remain operational.
●Recovering from Power Saving
Operation
Use one of the operations below to exit power
saving.
●Press any button.
●Move the watch to a bright location.
●Trigger auto light by angling the watch
towards your face.
Note
●The watch will not enter the power
saving state in the cases below.
ーWhile barometric pressure
indications are turned on
ーWhile in the Stopwatch Mode
ーWhile in the Timer Mode
●You can enable or disable Power
Saving.
lConfiguring Power Saving Function
Settings
●Note that the watch also may enter
the power saving state if its face is
blocked from light by your sleeve
while you are wearing it.
Auto Time Adjustment
The watch’s time and day settings can be
configured in accordance with a received time
signal.
Important!
●To receive a time signal, one of the
cities shown under “Time Signal
Cities” needs to be set as your Home
City.
●Whenever you are in an area where
a time signal cannot be received or
if your Home City does not support
time signal reception, you will need
to configure time and date settings
manually.
Receiving a Time Signal
Time Signal Cities
City Offset Second Hand
Position
TOKYO (TYO) +9 Second 30
Receivable Time Signal: Japan Time Calibration
Signal (JJY)
City Offset Second Hand
Position
HONG KONG
(HKG) +8 Second 28
Receivable Time Signal: China Time
Calibration Signal (BPC)
City Offset Second Hand
Position
NEW YORK (NYC) -5 Second 52
CHICAGO (CHI) -6 Second 50
DENVER (DEN) -7 Second 48
LOS ANGELES
(LAX) -8 Second 46
ANCHORAGE (ANC) -9 Second 44
HONOLULU (HNL) -10 Second 42
Receivable Time Signal: U.S. Time
Calibration Signal (WWVB)
City Offset Second Hand
Position
LONDON (LON) ±0 Second 2
PARIS (PAR) +1 Second 4
ATHENS (ATH) +2 Second 6
Receivable Time Signal: U.K. (MSF) and
German (DCF77) Time Calibration Signals
Operation Guide 5470
4

Time Signal Reception Ranges
Time signal reception is supported in the
areas shown below.
●Japan Time Calibration Signal (JJY)
500 kilometers
500 kilometers
1,000 kilometers
1,000 kilometers To k y o
Fukushima
Fukuoka/
Saga
●
Chinese Time Calibration Signal (BPC)
500 kilometers
1,500 kilometers
Chengdu
Shangqiu
Hong Kong
Shanghai
Beijing
Changchun
●U.S. Time Calibration Signal (WWVB)
600 miles
(1,000 kilometers)
2,000 miles (3,000 kilometers)
Los Angeles
Denver
Fort Collins
Chicago
New York
●U.K. (MSF) and German (DCF77) Time
Calibration Signal
The Anthorn signal is receivable within this area.
500 kilometers
1,500 kilometers
Mainflingen
Anthorn
Note
●Even if you are within the normal
reception range of a time signal,
reception may be made impossible
by the following factors: geographic
contours, weather, the season, the
time of day, wireless noise.
Setting a Home Time City
Use the procedure in this section to configure
Home City (the city that is in the same time
zone as your current location) and summer
time settings.
lTime Signal Cities
lSummer Time
Important!
●Time signal reception will not be
possible if your Home City setting is
not correct.
Getting ready
Enter the Timekeeping Mode.
lNavigating Between Modes
1. Pull out the crown.
The second hand will move to the
currently set city.
Crown
2. Rotate the crown to move the second
hand to the city (one that supports time
signal reception) you want to set.
3. To change the summer time setting, press
(B).
●If you don’t want to change the summer
time setting, push the crown back in to
complete the setting operation.
4. Rotate the crown away from you to change
the summer time setting.
●[AUTO]
The watch switches between standard
time and summer time automatically. In
many cases, the [AUTO] setting lets you
use the watch without switching
manually between summer time and
standard time.
lSummer Time Table
●[OFF]
The watch always indicates standard
time.
●[ON]
The watch always indicates summer
time.
5. Push the crown back in to complete the
setting operation.
Note
●If the currently indicated time is
summer time, [DST] will be shown
on the display.
●You cannot change the summer time
setting by rotating the crown towards
you.
Summer Time
Summer time, which is also known as Daylight
Saving Time (DST), advances the time setting
one hour, 30 minutes, or some other amount
of time from standard time (STD) during the
summer months. Whether or not and how
summer time is used depends on your country
or local area. Summer time is not used in some
countries and local areas.
Appropriate Signal Reception
Location
A time calibration signal can be received while
the watch is near a window.
●Keep metal objects away from the watch.
●Do not move the watch.
●Do not perform any operation on the watch.
12 o'clock
Note
●You may experience time signal
reception problems in the areas
described below.
ーAmong or near buildings
ーWhile riding in a vehicle
ーNear household appliances,
office machines, mobile phones,
etc.
ーOn a construction site, in an
airport, or any other location
where radio wave interference
occurs
ーNear high-voltage lines
ーIn mountainous areas or behind a
mountain
Operation Guide 5470
5

Auto Time Signal Receive
An automatic time signal receive operation is
performed and the time and day settings are
adjusted between midnight and 5:00 a.m.
Once a signal receive operation is successful,
no more auto receive operations are
performed that day.
The receive operation is performed only while
the watch is in the Timekeeping Mode.
lNavigating Between Modes
Mode hand
Place the watch near a window or some other
location appropriate for signal reception.
●When the receive operation is successful,
the time and day settings will be adjusted
automatically.
Note
●Reception takes anywhere from
about two minutes to about 10
minutes. It can take as long as 20
minutes.
●Using Auto Receive
Before going to bed at night, put the watch into
the Timekeeping Mode (whose settings
should be configured correctly), and leave it
near a window.
Enabling/Disabling Auto Receive
Use the procedure below to enable or disable
Auto Receive.
Getting ready
Enter the Receive Mode.
lNavigating Between Modes
1. Pull out the crown.
2. Rotate the crown to select either [ON] or
[OFF].
[ON]: Auto receive is on.
[OFF]: Auto receive is off.
3. Push the crown back in to complete the
setting operation.
4. Press (B) to return to the Timekeeping
Mode.
Manual Time Signal Receive
You can use a button operation to receive the
time signal. When a receive is successful, the
time and date settings will be adjusted
automatically.
Getting ready
Enter the Receive Mode.
lNavigating Between Modes
1. Place the watch near a window or some
other location appropriate for time signal
reception.
2. Hold down the (A) button for about two
seconds until [RC!] appears on the dot
display.
This indicates that time signal reception
has started.
●To cancel an ongoing time signal
receive operation, press any button.
After time signal receive ends, the result
of the receive operation will appear on the
display.
2 seconds
UnsuccessfulSuccessful
3. Press (B) to return to the Timekeeping
Mode.
●If reception fails for some reason, check
the surrounding reception environment
and then try again.
Note
●Reception takes anywhere from
about two minutes to about 10
minutes. It can take as long as 20
minutes.
●The watch will automatically return
to the Timekeeping Mode if you do
not perform any operation for about
two or three minutes after time signal
receive ends.
Operation Guide 5470
6

Receive Levels
The current time signal receive level is
indicated on the display. Refer to the level
indicator to determine the best location for
time signal reception.
StableUnstable
Note
●It takes about 10 seconds for time
signal reception conditions to
stabilize.
●Reception conditions are affected
by weather, the time of day, the
surrounding environment, etc.
Checking the Receive
Operation Result
Use the procedure below to check the date
and time of the last successful time signal
receive operation.
1. In the Timekeeping Mode, press (B) eight
times.
This enters the Receive Mode and
displays the date and time of the last
successful time signal receive operation.
●The display will show [-:--] for the time
and [-.--] for the date if no time signal
receive operation has been successful
yet.
2. Press (B) to return to the Timekeeping
Mode.
Signal Reception
Precautions
●When the watch is unable to adjust its time
in accordance with a calibration signal for
some reason, average timekeeping
accuracy is within ±15 seconds per month.
●Time signal reception is not possible when
any one of the conditions exists.
ーWhile battery power is low
ーPower Saving Level 2
ーTimer countdown operation in progress
ーbarometric pressure indications turned
on
●If an alarm starts to sound while time signal
reception is in progress, reception will stop.
●If the receive operation is successful, the
time and day settings will be adjusted
automatically in accordance with the Home
City and summer time settings. Summer
time will not be applied correctly in the case
described below.
ーWhen the summer time start date and
time, end date and time, or other rules are
changed by authorities
●Note that an internal decoding process the
watch performs after it receives a signal may
cause the time setting to be slightly off (by
less than one second).
●As of July 2015, China does not observe
summer time. If China starts to observe
summer time in the future, the time
displayed by the watch for China may not be
correct.
Manual Time
Adjustment
You can use the procedure below to adjust the
time and day settings using the watch in an
area where time signal reception is not
possible.
Getting ready
Enter the Timekeeping Mode.
lNavigating Between Modes
Timekeeping Mode
Setting a Home Time City
Use the procedure in this section to select a
city to use as your Home City. If you are in an
area that observes summer time, you can also
enable or disable summer time.
lSummer Time
Important!
●World Time times will not be correct
if you select the wrong city as your
Home City.
Note
●Your watch has 29 built-in cities that
you can select as a Home Time City.
If you are using the watch in a
location that is not among the built-
in cities, use the built-in city that is in
the same time zone as your location.
For available city settings, see “City
Code List”.
1. Pull out the crown.
The second hand will move to the
currently set city.
Crown
2. Rotate the crown to move the second
hand to the city you want to set.
3. To change the summer time setting, press
(B).
●If you don’t want to change the summer
time setting, push the crown back in to
complete the setting operation.
Operation Guide 5470
7

4. Rotate the crown away from you to change
the summer time setting.
●[AUTO]
The watch switches between standard
time and summer time automatically.
lSummer Time Table
●[OFF]
The watch always indicates standard
time.
●[ON]
The watch always indicates summer
time.
5. Push the crown back in to complete the
setting operation.
Note
●The [AUTO] setting works only when
a Time Signal City is selected for
your Home City.
●Select [OFF] or [ON] when your
Home City is not a Time Signal City.
●Note that summer time (DST) cannot
be selected while “UTC” is selected
as the Home City.
●If the currently indicated time is
summer time, [DST] will be shown
on the display.
Setting the Time and Date
1. Pull out the crown.
The second hand will move to the
currently set city.
Crown
2. Press (D).
●You can see if a time is a.m. or p.m. by
checking the second hand position.
PMAM
3. Rotate the crown to change the minute
setting.
●The hour hand will move in accordance
with minute hand movement.
4. Press (B).
This causes [HOUR] to flash on the
display.
5. Rotate the crown to change the hour
setting.
6. Press (B).
7. Rotate the crown to change the year
setting.
8. Press (B).
9. Rotate the crown to change the month and
day setting.
●If you want to change the time and date
settings at this point, press (B). Next,
return to the minute setting in step 3 and
perform the above steps again.
10. On a time signal at the top of a minute,
push the crown back in to complete the
setting operation.
Digital Compass
You can use the Digital Compass Mode to
determine the direction of north, and to check
your bearing to a destination.
Important!
●Check the information below to find
out how to ensure correct readings.
lCalibrating Compass Readings
(Bidirectional Calibration)
lDigital Compass Reading
Precautions
Getting ready
Enter the Compass Mode.
lNavigating Between Modes
Digital Compass Mode
●Entering the Compass Mode starts
compass readings.
●If you point 12 o’clock in the direction of an
objective and then enter the Compass
Mode, the bearing to the objective will
appear immediately.
Taking a Compass Reading
Keeping the watch level, point 12 o’clock in the
direction of your desired objective. The
second hand will indicate north. The bearing
and bearing angle to your objective will also
appear on the display.
●To retrigger the compass operation, press
(C).
Interpreting Bearing Readings
315°
0°
Bearing
Bearing angle to objective
Bearing to objective
North
Objective
Directions: N (North), E (East), W (West), S
(South)
Operation Guide 5470
8

Note
●Normally the Compass Mode
indicates magnetic north. You can
also configure settings to indicate
true north.
lSetting Up for True North Readings
(Magnetic Declination Calibration)
lMagnetic North and True North
●After the initial reading is displayed,
the watch will continue to take
readings about every second for
about the next 60 seconds. The
watch will return to the Timekeeping
Mode automatically about 60
seconds after you press (C).
●Auto Light will not illuminate the face
while a compass operation is in
progress.
●If an alarm or other beeper sounds,
or if you turn on illumination by
pressing (L) while a compass
operation is in progress, the
compass operation will be
suspended momentarily. The
compass operation will resume
when the beeper stops or
illumination turns off.
●Aligning a map with actual
surroundings (setting a map)
Setting a map means to align the map so the
directions indicated on it are aligned with the
actual directions of your location. Once you
set a map, you can more easily get a grasp of
the relationship between map markings and
actual geographic contours. To set a map with
this watch, align north on the map with the
north indication of the watch. Once you set the
map, you can compare your bearing on the
map with your surroundings, which will help
you determine your current location and
destination.
●Note that map reading skills and experience
are required to determine your current
location and destination on a map.
Calibrating Compass
Readings
Calibrating Compass Readings
(Bidirectional Calibration)
Perform calibration whenever you notice the
watch’s compass readings are different from
those of another compass, or before setting
out on a climb or trek.
●Note that accurate compass readings
and/or calibration will not be possible in an
area where strong magnetism is present.
lDigital Compass Reading Precautions
1. Pull out the crown.
Crown
2. While keeping the watch horizontal, press
(C).
This starts calibration of the first point,
which causes [o WAIT] to appear on the
display. If calibration is successful,
indicators will appear on the display in the
following sequence: [OK] n [Turn 180°]
n [p 2].
3. Rotate the watch 180 degrees, taking care
to be as exact as possible.
4. Press (C).
This starts calibration of the second point,
which causes [p WAIT] to appear on the
display. [OK] will appear on the display if
calibration is successful.
5. Push the crown back in to complete the
setting operation.
Note
●[ERR] will appear if calibration fails
for some reason. If this happens,
restart the above procedure from
step 1.
Setting Up for True North Readings
(Magnetic Declination Calibration)
If you want the watch to indicate true north
instead of magnetic north, you need to specify
the current magnetic declination direction
(east or west) and declination angle.
lMagnetic North and True North
●The magnetic declination angle value can
be set in 1° (degree) units only. Use a value
that is closest to the angle you want to set.
Example: For an angle of 7.4°, set 7°.
Example: For an angle of 7°.4' (7 degrees,
40 minutes), set 8°.
Note
●Magnetic declination angles (east or
west) and angle degree values for
specific locations can be found on
geographic maps, mountain
climbing maps, and other maps that
include contour lines.
1. Pull out the crown.
Crown
2. Press (B).
3. Rotate the crown to change the magnetic
declination direction and angle settings as
desired.
Setting range: 90° west to 90° east
[0° (OFF)]: Magnetic north
[E]: East declination (Magnetic north is
east of true north.)
[W]: West declination (Magnetic north is
west of true north.)
●To return the setting to [0° (OFF)], press
(A) and (C) at the same time.
Magnetic declination angle
Magnetic declination direction
4. Push the crown back in to complete the
setting operation.
Operation Guide 5470
9

Magnetic North and True
North
There are actually two types of north:
magnetic north and true north.
Magnetic north: North indicated by the needle
of a compass
True north: Direction to the North Pole
As shown in the illustration below, magnetic
north and true north are not the same.
Earth
Magnetic north
True north
Note
●The north indicated on commercially
available maps is normally true
north.
Digital Compass Reading
Precautions
Location during Use
Taking readings near sources of strong
magnetism can cause reading error. Keep the
watch away from the following types of items.
Permanent magnets (magnetic accessories,
etc.), metal objects, high-voltage wires, aerial
wires, electrical household appliances (TVs,
computers, cellphones, etc.)
●Note that correct direction readings are not
possible indoors, especially inside of
reinforced concrete structures.
●Accurate direction readings are not possible
in motor vehicles, on boats, on aircraft, etc.
Storage Location
Exposure of the watch to magnetism can
affect the accuracy of digital compass
readings. Keep the watch away from the
following types of items.
Permanent magnets (magnetic accessories,
etc.), metal objects, electrical household
appliances (TVs, computers, cellphones, etc.)
Altitude Measurement
The watch takes altitude readings and
displays results based on air pressure
measurements taken by a built-in pressure
sensor.
Important!
●The altitude readings displayed by
the watch are relative values that are
calculated based on barometric
pressure measured by the watch’s
pressure sensor. This means that
barometric pressure changes due to
weather can cause altitude readings
taken at the same location to be
different. Also note that the value
displayed by the watch may be
different from the actual elevation
and/or sea level elevation indicated
for the area where you are located.
When using the watch’s altimeter
while mountain climbing, it is
recommended that you regularly
calibrate its readings in accordance
with local altitude (elevation)
indications.
lCalibrating Altitude Readings
●The altitude calibration value and
barometric pressure changes may
result in display of a negative value.
●Check the information below to find
out about how to minimize
differences between readings
produced by the watch, and values
provided by local altitude (elevation)
indications.
lAltitude Reading Precautions
Getting ready
Enter the Altitude Mode.
lNavigating Between Modes
Altimeter Mode
●Entering the Altitude Mode starts altitude
readings.
Note
●When you enter the Altitude Mode,
the second hand will indicate either
timekeeping seconds, or the
differential between altitude
measurements (whichever was
indicated the last time you were in
the Altitude Mode). You can toggle
the second hand indication between
seconds and the measured value
differential by pressing (D).
lTaking a Relative Altitude Reading
from Some Reference Point
Checking the Current
Altitude
Starting an altitude measurement operation
displays the altitude in your current location.
The watch takes altitude readings every
second for about the first three minutes. After
that, it takes readings according to the watch’s
auto measurement interval setting.
●Check the information below to find out how
to configure the auto measurement interval.
lSetting the Auto Measurement Interval
Note
●To retrigger measurement, press
(A).
●Measurement range: -700 m to
10,000 m (-2,300 to 32,800 feet)
(Measurement unit: 1 meter (5 feet))
Note that calibrating altitude
readings will cause a change in the
measurement range.
●[- - -] will appear for the measured
value if it is outside the allowable
range.
●Press (B) to return to the
Timekeeping Mode.
Interpreting Altitude Graph Contents
50 m*
Current reading
6 readings ago
*1 square (v) is 10 m.
Operation Guide 5470
10

Calibrating Altitude
Readings
To minimize the difference between locally
indicated and measured values, you should
update the reference altitude value before
setting off on and during treks or any other
activities where you take altitude readings.
You can find out the altitude at your current
location from signs, maps, on the Internet, etc.
While mountain climbing, it is highly
recommended that you check a map, local
altitude indications, or some other source for
your current location’s altitude and regularly
calibrate watch readings with the latest
information.
●Differences between actual altitude and
watch readings can be caused by the
factors below.
ーChanges in barometric pressure
ーChanges in temperature caused by
variations in barometric pressure and by
elevation
●Though altitude readings can be taken
without calibration, doing so may produce
readings that are very different from
indications by altitude markers, etc.
1. Pull out the crown.
Crown
2. Rotate the crown to calibrate the
displayed value to that of a local altitude
(elevation) marker.
Calibration unit: 1 m (5 feet)
●To return the altitude setting to its initial
factory default, press (A) and (C) at the
same time.
3. Push the crown back in to complete the
setting operation.
Taking a Relative Altitude
Reading from Some
Reference Point
After you set a reference altitude, the second
hand of the watch will indicate the difference
between your current altitude and the
reference altitude. This makes it easy to
measure the altitude different between two
points while climbing or trekking.
●Setting the Altitude Differential
Measurement Range
1. Pull out the crown.
Crown
2. Press (B) twice.
3. Rotate the crown to select either [100m] or
[1000m].
[100m]: ±100 m (±328 feet) in 5 m (16 feet)
units
[1000m]: ±1000m (±3280 feet) in 50m
(164 feet) units
4. Push the crown back in to complete the
setting operation.
●Measuring Altitude
1. Use the contour lines on your map to
determine the difference in altitude
between your current location and your
destination.
2. Take an altitude reading of your current
location.
lChecking the Current Altitude
3. Hold down the (D) button for about two
seconds to set your current location’s
altitude as the reference altitude.
[DIFF RESET] and [RESET] will appear
on the display, followed by the current
altitude.
●The second hand (Altitude Differential
Indicator) will indicate the difference
between the reference altitude and the
current altitude reading. At this time the
second hand should indicate ±0 m (±0
feet).
Current location altitude
Altitude Differential Indicator
4. While comparing the difference between
the altitude you found on the map and the
altitude differential indicated by the
watch’s second hand, advance towards
your destination.
●When the altitude differential you found
on the map is the same as that indicated
by the second hand, it means you are
close to your destination.
Example: Altitude differential of -30 m (-98
feet) (-300 m (-984 feet))
100 50
0
−50
−100 Altitude Differential
Indicator
Range: ±100 m (1000 m)
(±328 feet (3280 feet))
Unit: m
5. To exit the altitude differential indication,
press (D).
The second hand indicates the current
time seconds.
●To toggle the second hand between
altitude differential and current time
seconds indication, press (D).
Operation Guide 5470
11

Note
●The second hand will point to r
(over) if the current altitude
differential is greater than the setting
value, or s (under) if it is lower than
the setting value.
If either of these is indicated while
using the ±100 m (328 feet)
measurement range, change the
range setting to ±1000 m (3280
feet).
●The second hand will move to 9
o’clock if a reading is outside the
allowable altitude measurement
range (-700 m to 10,000 m (-2,300 to
32,800 feet)), or if a reading error
occurs.
Setting the Auto
Measurement Interval
You can select an auto measurement interval
of either five seconds or two minutes.
1. Pull out the crown.
2. Press (B).
Crown
3. Rotate the crown to select [0’05] or [2’00]
as the auto measurement interval.
[0’05]: Readings taken every second for
the first three minutes, and then every five
seconds for about the next one hour.
[2’00]: Readings taken every second for
the first three minutes, and then every two
minutes for about the next 12 hours.
4. Push the crown back in to complete the
setting operation.
Note
●The watch will automatically return
to the Timekeeping Mode if you do
not perform any operation in the
Altimeter Mode for about one hour
while [0’05] is selected as the
measurement interval or about 12
hours while [2’00] is selected.
Recording Altitude Readings
Use the procedure below to record altitude
measurements manually. Auto
measurements are also recorded
automatically.
●Use the Altitude Record Recall Mode to
view or delete records.
lViewing Altitude Records
●Recording Altitude Data Manually
Hold down the (A) button for about two
seconds, until [REC] stops flashing on the
display. This records the current altitude
reading, along with the recording date and
time.
●There is enough memory to hold up to 30
altitude records.
●Recording altitude data when there are
already 30 records in memory automatically
deletes the oldest record to make room for
the new one.
●Auto Altitude Data Recording
The altitude data described below is recorded
automatically while the watch is in the Altitude
Mode. One record each is maintained in
memory for each of these items.
AB
CD
F
E
End point
Start point
High Altitude (MAX): E
Low Altitude (MIN): F
Cumulative Ascent (ASC): A+C*
Cumulative Descent (DSC): B+D*
* Cumulative ascent and cumulative descent
values are updated whenever there is a
difference of at least ±15 m (±49 feet) from
one reading to the next.
Note
●Auto recording ends when you exit
the Altimeter Mode. Re-entering the
Altimeter Mode restarts recording of
cumulative values from where it was
stopped when you last exited the
Altimeter Mode.
Specifying the Altitude
Measurement Unit
You can select either meters (m) or feet (ft) as
the Altitude Mode display unit.
Important!
●When Tokyo (TYO) is set as the
Home City, the altitude unit is fixed
as meters (m) and cannot be
changed.
1. Pull out the crown.
2. Press (B) three times.
Crown
3. Rotate the crown to select meters (m) or
feet (ft) as the measurement unit.
4. Push the crown back in to complete the
setting operation.
Operation Guide 5470
12

Altitude Reading
Precautions
Effects of Temperature
When taking altitude readings, take the steps
below to keep the watch at as stable a
temperature as possible. Changes in
temperature can affect temperature readings.
●Take readings with the watch on your wrist.
●Take readings in an area where
temperature is stable.
Altitude Readings
●Do not use this watch while skydiving, hang
gliding, paragliding, gyrocopter flying, glider
flying, or engaged in other activities where
altitude changes suddenly.
●Altitude readings produced by this watch
are not intended for special-purpose or
industrial level use.
●In an aircraft, the watch measures the in-
cabin pressurized air pressure, so readings
will not match altitudes announced by the
crew.
Altitude Readings (Relative Altitude)
This watch uses International Standard
Atmosphere (ISA) relative altitude data
defined by the International Civil Aviation
Organization (ICAO). Barometric pressure
generally becomes lower as altitude
increases.
Correct measurement may not be possible
under the conditions below.
●During unstable atmospheric conditions
●During sudden temperature changes
●After the watch has been subjected to
strong impact
Barometric Pressure
Measurement
You can use the Barometer Mode to take a
reading of the barometric pressure at your
current location, and to track reading changes
and trends.
Important!
●Check the information below to find
out how to ensure correct readings.
lBarometric Pressure Reading
Precautions
Getting ready
Enter the Barometer Mode.
lNavigating Between Modes
Barometer Mode
●Entering the Barometer Mode starts
barometric pressure readings.
Note
●When you enter the Barometer
Mode, the second hand will indicate
either timekeeping seconds, or the
differential between barometer
measurements (whichever was
indicated the last time you were in
the Barometer Mode). You can
toggle the second hand indication
between seconds and the measured
value differential by pressing (D).
lChecking the Change in Barometric
Pressure between Two Readings
Checking the Current
Barometric Pressure
Entering the Barometer Mode displays the
current barometric pressure and a barometric
pressure graph. After you enter the Barometer
Mode, the watch takes readings about every
five seconds for three minutes. After that, a
measurement is taken about every two
minutes.
Barometric pressure
Barometric pressure graph
Note
●To retrigger measurement, press
(A).
●The watch will automatically return
to the Timekeeping Mode from the
Barometer mode if you do not
perform any operation for about one
hour.
●The measurement range is 260 hPa
to 1,100 hPA (7.65 inHg to 32.45
inHg) (1 hPa (0.05 inHg) units). [- - -]
will appear for the measured value if
it is outside the allowable range.
●To return to the Timekeeping Mode,
hold down the (B) button for about
two seconds.
Operation Guide 5470
13

Checking Changes in
Barometric Pressure Over
Time
The watch displays a graph of 20 hours of
barometric pressure readings taken every two
hours. The square (v) at the far right of the
graph indicates the latest barometric pressure
reading.
Barometric
pressure
(1 hPa per division)
Time
(2 hours per division)
●Predicting Upcoming Weather
A trend
like this: Indicates this:
Rising barometric pressure,
which indicates that upcoming
weather probably will be fair.
Falling barometric pressure,
which indicates that upcoming
weather probably will be bad.
Note
●Large changes in barometric
pressure and/or temperature can
cause past data readings to be
plotted outside of the visible area of
the graph. Though plots are not
visible, the data is still maintained in
watch memory.
●The barometric pressure graph is
not displayed while Barometric
Pressure Change Indications are
displayed.
lBarometric Pressure Change
Indications
Checking the Change in
Barometric Pressure
between Two Readings
When you perform the procedure below in the
Barometer Mode, the second hand will
indicate the difference between the current
barometric pressure measurement and the
last auto measurement value (taken at two-
hour intervals).
1. Press (D).
The second hand will indicate the
barometric pressure differential (Pressure
Differential Indicator).
Example: Barometric pressure differential
of -3 hPa (approximately -0.9 inHg）
10 5
0
−5
−10 Pressure
Differential
Indicator
Range: ±10 hPa
(1 hPa units)
Unit: hPa
2. To exit barometric pressure differential
indication, press (D).
●Each press of (D) toggles the second
hand between barometric pressure
differential and current time seconds
indication.
Note
●The second hand will point to r
(over) if the current barometric
pressure differential is greater than
+10 hPa (0.3 inHg), or s (under) if it
is less than -10 hPa (-0.3 inHg).
●A reading that is outside the
allowable measurement range (260
hPa to 1,100 hPa (7.65 inHg to 32.45
inHg)) or any measurement error will
cause the second hand to move to 9
o’clock.
Barometric Pressure Change
Indications
Whenever the watch detects a significant
change in air pressure readings (due to
sudden ascent or descent, or to the passage
of a low pressure or high pressure area), it will
beep to let you know. An arrow will also flash
on the display at this time if the watch is in the
Barometer Mode, or if it is in the Timekeeping
Mode with the barometric pressure graph
displayed. The arrow that appears shows the
direction of the pressure change. These alerts
are called “Barometric Pressure Change
Indications”.
This
indicator: Means this:
Sudden drop in barometric
pressure
Sudden rise in barometric
pressure
Sustained rise in pressure,
shifting to a fall
Sustained fall in pressure, shifting
to a rise
Important!
●To ensure correct barometric
pressure indication operation, turn it
on in a location where the altitude is
constant (such as a lodge, camp
area, or on the ocean).
●A change in altitude causes a
change in barometric pressure.
Because of this, correct readings are
impossible. Do not take readings
while ascending or descending a
mountain, etc.
1. Hold down the (D) button for about two
seconds.
[BARO] is displayed while Barometric
Pressure Change Indications are on.
2. Hold down the (D) button for about two
seconds to turn off Barometric Pressure
Change Indications.
Operation Guide 5470
14

Note
●If Barometric Pressure Change
Indications are on, barometric
pressure readings are taken every
two minutes even while the watch is
not in the Barometer Mode.
●Barometric Pressure Change
Indications turn off automatically 24
hours after it is turned on.
●Time signal reception is disabled
while Barometric Pressure Change
Indications are turned on. Power
saving is also disabled.
lPower Saving Function
●You will not be able to turn on
Barometric Pressure Change
Indications are while charge level of
the watch’s battery is low.
●Low battery power will also cause
barometric pressure trend
information to turn off.
Calibrating Barometric
Pressure Readings
The watch’s pressure sensor is adjusted at the
factory and normally does not require
calibration. However, you can calibrate the
displayed value if you notice major errors in
readings.
Important!
●The watch will not be able to produce
correct temperature readings if you
make a mistake during the
calibration procedure. Check to
make sure that the value you use for
calibration produces correct
pressure readings.
1. Pull out the crown.
Crown
2. Rotate the crown to change the value.
Calibration Unit: 1 hPa (0.05 inHg)
●To return the barometric pressure
setting to its initial factory default, press
(A) and (C) at the same time.
3. Push the crown back in to complete the
setting operation.
Specifying the Barometric
Pressure Measurement Unit
You can specify either hectopascals (hPa) or
inches of mercury (inHg) as the display unit for
barometric pressure values.
Important!
●When Tokyo (TYO) is set as the
Home City, the barometric pressure
unit is fixed as hectopascals (hPa)
and cannot be changed.
1. Pull out the crown.
Crown
2. Press (B).
3. Rotate the crown to select hectopascals
(hPa) or inches of mercury (inHg) as the
measurement unit.
4. Push the crown back in to complete the
setting operation.
Barometric Pressure
Reading Precautions
●The barometric pressure graph produced
by this watch can be used to obtain an idea
of upcoming weather conditions. However,
this watch should not be used in place of
precision instruments required for official
weather prediction and reporting.
●Pressure sensor readings can be affected
by sudden changes in temperature.
Because of this, there may be some error in
the readings produced by the watch.
Temperature
Measurement
The watch can be used to take current air
temperature readings.
Important!
●Check the information below to find
out how to ensure correct readings.
lTemperature Reading Precautions
Getting ready
Enter the Temperature Mode.
lNavigating Between Modes
Thermometer Mode
●Entering the Temperature Mode starts
temperature readings.
Checking the Current
Temperature
Entering the Temperature Mode displays
temperature reading results. After you enter
the Temperature Mode, the watch takes
readings about every five seconds for three
minutes. After that, a measurement is taken
about every two minutes.
●To retrigger measurement, press (A).
Note
●The watch will automatically return
to the Timekeeping Mode if you do
not perform any operation in the
Temperature Mode for about one
hour.
●The measuring range is -10.0 °C to
60.0 °C (14.0 °F to 140.0 °F) (0.1 °C
(0.2 °F) units). [- - .-] will appear for
the measured value if it is outside the
allowable range.
●To return to the Timekeeping Mode,
hold down the (B) button for about
two seconds.
Operation Guide 5470
15

Calibrating Temperature
Readings
The watch’s temperature sensor is adjusted at
the factory and normally does not require
calibration. However, you can calibrate the
displayed value if you notice major errors in
readings.
Important!
●Check to make sure that the value
you use for calibration produces
correct temperature readings.
●Before calibrating the temperature
reading, remove the watch from your
wrist and leave it in the area where
you plan to measure temperature for
about 20 or 30 minutes to allow the
case temperature to become the
same as the air temperature.
1. Pull out the crown.
Crown
2. Rotate the crown to calibrate the
temperature value.
Calibration unit: 0.1 °C (0.2 °F)
●To return the barometric pressure
setting to its initial factory default, press
(A) and (C) at the same time.
3. Push the crown back in to complete the
setting operation.
Specifying the Temperature
Measurement Unit
You can select either Celsius (°C) or
Fahrenheit (°F) as the temperature display
unit.
Important!
●When Tokyo (TYO) is set as the
Home City, the temperature unit is
fixed as Celsius (°C) and cannot be
changed.
1. Pull out the crown.
Crown
2. Press (B).
3. Rotate the crown to select Celsius (°C) or
Fahrenheit (°F) as the measurement unit.
4. Push the crown back in to complete the
setting operation.
Temperature Reading
Precautions
Body temperature, direct sunlight, and
humidity all have an effect on temperature
readings. To help ensure more accurate
temperature readings, remove the watch from
your wrist, wipe it dry of any moisture, and
place it in a well-ventilated location not
exposed to direct sunlight. You should be able
to take temperature readings after about 20 to
30 minutes.
Viewing Altitude
Records
You can use the Altitude Record Recall Mode
to view manually recorded and auto recorded
data.
Getting ready
Enter the Altitude Record Recall Mode.
lNavigating Between Modes
Data Recall Mode
Viewing Recorded Data
Entering the Altitude Record Recall Mode
displays the data type screen of an altitude
data record. Use the (A) and (C) buttons to
scroll between the data top screens as shown
below.
●Holding down (A) or (C) scrolls at high
speed.
ACCA
ACCA
A
C
C*
A*
Total Descent
Total Ascent Low Altitude
High Altitude
Auto Recorded Data
Manually Recorded Data
* Each press of a button scrolls to the top
screen of the next manually recorded data
record. There can be up to 30 records in
memory, numbered from 1 ([-01-]) to 30
([-30-]).
Operation Guide 5470
16

Note
●If there is no data left in memory due
to a data delete operation, error, or
some other reason, [- - - -] or [0] will
appear on the display.
●If the cumulative ascent (ASC) or
cumulative descent (DSC) value
exceeds 99,999 m (327,995 feet), it
will revert to 0 and continue from
there.
●Pressing (D) returns to the top
screen (record number, DSC, ASC,
MAX, or MIN) of the data that you are
viewing.
●Manually Recorded Data
After displaying the top screen of a manually
recorded data record (01 through 30), you can
navigate between the record’s data screens
as shown below.
Example: Manually recorded Record 01
DD
2 seconds
2 seconds
1 second
Altitude Time
Recording date
Record number
●Auto Recorded Data
High altitude and low altitude
Example: High altitude
DD
2 seconds
2 seconds
1 second
Altitude Time
Recording dateData type
Cumulative ascent and cumulative
descent
Example: Cumulative ascent
D
D
2 seconds
1 second
Cumulative altitude
Date when
accumulation started.Data type
Deleting a Particular Record
1. Use the (A) and (C) buttons to scroll
through the top screens of the records and
display the one you want to delete .
●Note that holding down the (D) button
for more than five seconds in step 2
below will delete all data.
2. Hold down the (D) button for
approximately two seconds. Release the
button as soon as [CLEAR] changes from
flashing to not flashing.
This deletes the record you selected.
Deleting All Records
Hold down the (D) button for about five
seconds, until the message [CLEAR ALL]
changes from flashing to not flashing. This
deletes all the altitude record data.
Stopwatch
The stopwatch can be used to perform 1/100
second elapsed time measurement up to 23
hours, 59 minutes, 59.99 seconds.
It can also measure split times.
Getting ready
Enter the Stopwatch Mode.
lNavigating Between Modes
Stopwatch Mode
Note
●Elapsed time returns to zero
automatically and timing continues
from there when the maximum limit
is reached.
●Once started, elapsed time
measurement continues until you
press (C) to reset the stopwatch,
even if you change to a different
mode and even if the stopwatch
reaches the elapsed time
measurement limit.
●Exiting the Stopwatch Mode while a
split time is frozen on the display
clears the split time and returns to
elapsed time measurement.
Operation Guide 5470
17

Measuring Elapsed Time
1. Use the operations below to measure
elapsed time.
A
A
A
A
nnn
Stop
Resume
Stop
Start
Hours, minutes, seconds, 1/100 seconds
2. Press (C) to reset the elapsed time to all
zeroes.
Measuring a Split Time
1. Use the operations below to measure
elapsed time.
A
C
C
A
nnn
Stop
Split release
Split
Start
Hours, minutes, seconds, 1/100 seconds
2. Press (C) to reset the elapsed time to all
zeroes.
Timing the First and Second
Place Finishers
1. Use the operations below to measure
elapsed time.
A
C
A
C
nnn
Split release
(Time of 2nd finisher)
2nd Finisher
1st Finisher
(Time of 1st finisher)
Start
Hours, minutes, seconds, 1/100 seconds
2. Press (C) to reset the elapsed time to all
zeroes.
Timer
The timer counts down from a start time
specified by you. A beeper sounds when the
end of the countdown is reached.
Getting ready
Enter the Timer Mode.
lNavigating Between Modes
Timer Mode
Setting the Timer Start Time
1. Pull out the crown.
This will cause the timer minutes digits to
flash.
Minutes
Crown
2. Rotate the crown to change the minutes
value.
The start time can be set in 1-minute units
up to 60 minutes.
3. Push the crown back in to complete the
setting operation.
Using the Timer
Press (A) to start the countdown. A beeper
sounds when the end of the countdown is
reached.
●Pressing (A) toggles the countdown
between pause and resume.
●Pulling out the crown while a countdown is
in progress will reset to the countdown start
time. You can then use the crown to change
the start time.
Start/Stop
Reset
Minutes, seconds
●To stop the timer and reset it to the start
time
1. While a countdown operation is in
progress, press (A).
This stops the timer.
2. Press (C).
This resets the timer to the start time.
Stopping the Timer
Pressing any button while the timer beeper is
sounding stops it.
Operation Guide 5470
18

Alarms
The watch will beep when an alarm time is
reached. You can set up to five different
alarms. The hourly time signal causes the
watch to beep every hour on the hour.
Getting ready
Enter the Alarm Mode.
lNavigating Between Modes
Alarm Mode
Configuring Alarm Settings
1. Use the (A) and (C) buttons to display the
alarm ([AL1] to [AL5]) you want to
configure.
Alarm time
OFF
a.m. (A)
Alarm number
2. Pull out the crown.
This turns on the alarm.
Crown
3. Rotate the crown to change the minute
setting.
●The hour hand will move in accordance
with minute hand movement.
●To set the hour hand separately, go to
step 4 of this procedure.
4. Press (B).
5. Rotate the crown to change the hour
setting.
●If you are using 12-hour timekeeping,
[A] indicates a.m., while [P] indicates
p.m.
6. Push the crown back in to complete the
setting operation.
Note
●In the Alarm Mode, hold down the (A)
button to sound the alarm.
Turning an Alarm On or Off
1. Use the (A) and (C) buttons to display the
alarm ([AL1] to [AL5] or [SIG]) you want to
turn on or off.
Alarm number
2. Press (D) to toggle the displayed alarm
between on and off.
Stopping an Alarm
Pressing any button while the beeper is
sounding stops it.
Finding Out an Alarm’s
On/Off Status
Turning on an alarm or the hourly time signal
causes the corresponding indicator to appear
on the display.
Hourly time signal
Alarm
When any alarm is turned on:
[ALM] is displayed.
When the hourly time signal is enabled:
[SIG] is displayed.
World Time
You can view the current time in 29 cities (29
time zones), and UTC (Coordinated Universal
Time) time.
Getting ready
Enter the World Time Mode.
lNavigating Between Modes
Home City time
World Time Mode
World time
Checking the Time in Another
Zone
1. Pull out the crown.
The second hand will move to the
currently set World Time City.
Crown
2. Rotate the crown to move the second
hand to the city you want to set.
The hour and minute hands will indicate
the current time in the selected World
Time City.
3. Push the crown back in to complete the
setting operation.
This will cause the current time in the
selected Home City to appear on the
digital display.
Home City time
Time in selected city
Operation Guide 5470
19

Note
●To look up the current time in a city
that is not among the built-in cities,
select a built-in city that is in the
same time zone as the city you want
to look up. For information about
built-in cities, see the “City Code
List”.
●Pressing (D) while in the World Time
Mode will cause the second hand to
move to the city code of the currently
selected World Time City.
●To check whether the currently
selected World Time City time is
a.m. or p.m., enter the World Time
Mode, and then press (A). The
second hand will move to “A” (a.m.)
or “P” (p.m.).
Configuring the Summer
Time Setting
When summer time is used in a World Time
city, you can enable Summer Time for that city.
lSummer Time
1. Pull out the crown.
The second hand will move to the
currently set World Time City.
Crown
2. Press (B).
3. Rotate the crown to change the summer
time setting.
●[OFF]
The watch always indicates standard
time.
●[ON]
The watch always indicates summer
time.
4. Push the crown back in to complete the
setting operation.
Swapping the World Time
and Current Location Time
Holding down the (D) button for about three
seconds will swap your World Time with your
current location time (Home Time).
n
Current time
Current time
World Time
World Time
After swappingBefore swapping
Note
●This function comes in handy when
you need to move to another time
zone.
lInternational Travel
Accessing the UTC
(Coordinated Universal
Time) Zone
To select UTC as the World Time City, hold
down the (A) button for about three seconds.
Display Illumination
The face of the watch can be illuminated for
reading in the dark. The watch also has an
auto light function that automatically
illuminates the display whenever the watch is
angled for reading in the dark.
Note
●Illumination will turn off automatically
if an alarm starts to sound or if you
perform a crown operation.
●Display illumination is disabled
when any one of the conditions
below exists. Display illumination is
also disabled while measurement by
a sensor is in progress.
ーWhile a time signal receive
operation is in progress
ーWhile a hand movement
operation is in progress
Illuminating the Display
Manually
Pressing (L) in any mode turns on face
illumination.
Operation Guide 5470
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