Seiko Astron 8X82 User manual

8X82
HANDY MANUAL
Printed in Japan
BSN 8X82-A1406
<
English
>

1 2
For details, please read the
“8X82 (GPS Solar) Complete User Guide”
(http://www.seikowatches.com/support/ib/index.html).
Please carefully read the
instructions in this Complete User
Guide before using the watch.
Length adjustment service for metallic bands is
available at the retailer from whom the watch was
purchased. If you cannot have your watch repaired
by the retailer from whom the watch was purchased
because you received the watch as a gift, or you moved
to a distant place, please contact SEIKO WORLDWIDE
SERVICE NETWORK.The service may also be available
on a chargeable basis at other retailers, however, some
retailers may not perform the service.
If your watch has a protective film for preventing
scratches, make sure to peel it off before using the
watch. If the watch is used with the film on it, dirt, sweat,
dust, or moisture may be attached under the film and
may cause corrosion.
1. Features���������������3
2. Names of the parts ���������5
3. Check the charging status ������7
4. Time zone �������������� 9
5. Time zone display and list of
time zones around the world ���� 11
6. Time Zone Adjustment������� 13
7. Manual time zone selection ���� 15
8. DST (Daylight Saving Time) ���� 17
9. How to manually adjust the time �� 19
10. When boarding (in-flight mode ( )) � 21
11. How to use the stopwatch ����� 23
12. Leap second (Automatic leap second
reception function) �������� 25
13. Reception result display ������ 27
14. Troubleshooting problems with time
zone adjustment or manual time
zone adjustment���������� 29
CONTENTS

3 4
GPS signal reception
Features
This is a GPS* solar watch.
Standard Charging Time
This watch can be set to the precise
local time by just one button
operation

anywhere in the world.
 DST (Daylight Saving Time) can be set manually.
This watch quickly adjusts the time by
receiving GPS signals
from GPS satellites.
This watch responds to
a total of 40 time zones
around the world.
When the region or time
zone where the watch is
used is changed, please
carry out operation of
“time zone adjustment.”
1
GPS signal reception consumes a lot of energy. It is necessary to charge the watch by exposing it to light so
that the indicator hand points to the “middle” or “full” position. (If the charging status is displayed as “low,” the
reception will not start even with manual GPS signal reception.)
The figures of “Time required for charging the watch to start moving at one- second intervals” are estimations of time required to charge the stopped
watch by exposing it to light until it moves at steady one-second intervals. Even if the watch is partially charged for a shorter period, the watch will
resume one-second- interval movement. However, it may shortly return to two-second-interval movement. Use the charging time in this column as a
rough guide for sufficient charging time.
The required charging time slightly varies depending on the design and the dial color of the watch.
Illumination
lx (LUX)
Light
source
Condition
(Example)
From the state where the watch is
stopped (not charged)
In the state where the hand
moves (the watch is charged)
To fully charged
To one-second interval
movement is secured
To move for one day
700 Fluorescent light General offices － － 3.5 hours
3,000 Fluorescent light 30W 20cm 420 hours 12 hours 1 hours
10,000
Fluorescent light Sunlight Cloudy day 30W 5cm 11 5 hours 4 hours 15 minutes
100,000 Sunlight
Sunny day (Under the direct sunlight on a summer day)
50 hours 1.5 hours 10 minutes
When the energy
stored in the watch
runs out completely,
it takes time to fully
charge the watch,
so please keep in
mind to charge the
watch regularly.
Solar charging Function
This watch operates by solar charging.
Expose the dial to light to charge the watch.
Once fully charged, the watch runs for
approximately 6 months.
Automatic time adjustment function
This watch automatically adjusts the time in
accordance with action patterns during use.
When the watch has sensed sufficient brightness under
an open sky, it automatically receives GPS signals
from GPS satellites. This function enables the watch to
automatically adjust
the time precisely
even while you are
using the watch.
This watch is
unable to receive
GPS signals
when the energy
stored in the
watch is low.
GPS is an abbreviation for Global Positioning System.

5 6
Names of the parts
2
Crown
Minute hand
Date
Button C
Button B
Hour hand
Button A
Button D
Small second hand
Indicator hand
(Stopwatch hour hand)
Stopwatch 1/5 second hand
Stopwatch minute hand

7 8
Check the charging status
Indicator
display
Charging
status Solution
full Reception is
allowed.
middle Reception is
allowed.
Indicator
display
Movement of
second hand
Charging
status Solution
1-second
interval
movement
low
The watch is
unable to receive
GPS signals, but
has energy to
operate.
Charge the watch at least
until the indicator hand
points to “middle” so that
the watch is able to receive
GPS signals.
2-second
interval
movement
The watch is
unable to receive
GPS signals,
and does not
have energy to
operate. (The
energy depletion
forewarning
function is
activated. P. 31)
Continue to charge the
watch at least until the
indicator hand points to
“middle” so that the watch
is able to continuously
operate and receive GPS
signals.
5-second
interval
movement
The charging status is
not displayed for the in-
flight mode ( ).
Reset the in-flight mode ( )
as long as possible.
When the indicator hand
points to “low,” charge the
watch.
3
The indicator hand position shows whether this watch is able or unable to receive GPS signals.
In addition, for the low charging state, the movement of the second hand shows the energy depletion state in
further detail.
GPS signal reception requires a lot of energy. It is necessary to regularly charge the watch by exposing it to light.
Reception is
allowed
Reception is
not allowed

910
Time zone
8X82 タイムゾーンマップ
セイコーエプソン株式会社
ウォッチ事業部
Ｗ企画・営業部
2013年12月19日作成
+5
+5
+9.5
+8.75
+3.5 +4.5
+5.5
+5.5
+5.5
+5.5
+6.5
+6.5
+10.5 +11.5
+12.75
+5.75
+11
+10
+10
+12
+9
+5
+5
+3
+2
+2
+1
0
+3
+4
+3
-1
+1
0
+8
+7
+6
+4
+12
+11
+9
-10
+13
+14
-8
+5
+6
-12
-12
-11
-11
-11
+13
-3.5
-3
-9.5
-9
-8
-7 -6 -5
-1
0
-3
-4
-4
-5
-5 -4
-4.5
-6
-7
-10
-3
-3
-10
-2 0
-1 -1
+1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12 -12
-1 0+1 +2 +4 +5 +6 +7 +8 +9 +10 +11+12 -12
+3
-11 -10 -9 -7 -6 -4
-8 -5 -3 -2
-11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1
4
Time zone
Based on Coordinated UniversalTime (UTC), the standard time commonly used is adopted by countries and regions
around the world.The standard time is determined by each country or region, and the region where the same standard
time is adopted is referred to as the time zone, and presently, the time zone is divided into 40 zones.
Further, DST (Daylight SavingTime) is individually adopted in countries and regions.
DST (Daylight SavingTime)
Depending on the area, DST (Daylight SavingTime) is individually set.
Daylight SavingTime, or summer time, is a system to lengthen daylight time by advancing 1 hour when daylight time
is longer during summer. Daylight saving time has been adopted in about 80 countries, mainly in Europe and North
America.The adoption and duration of daylight saving time varies depending on the country.
Daylight SavingTime is subject to change due to circumstances of the country or region.
Coordinated UniversalTime (UTC)
UTC is the universal standard time coordinated through an international agreement. UTC is the primary time standard
for recording time around the world. The time obtained by adding a leap second to the “International Atomic Time (TAI)”
is determined based on the atomic clock around the world. It is coordinated in order to compensate for deviations from
universal time (UT) which is astronomically determined by the UTC.
Each time zone is based on data as of January 2014.
Please be advised that regions for which the time zone is changed after 2014 cannot be accurately reflected.

11 12
Time zone display and list of time zones around the world
5
The inclusion of city codes and time differece indicators
from UTC may vary by watch model.
A “·” between figures of the display of time difference
shows that there is a time zone in that location.
Display of
time difference
The following list shows the relationship between
displays of the bezel and dial ring and time difference
from the UTC.
Please refer to the second hand positions below to set
the time zone or to check the time zone setting.
DST (Daylight SavingTime) is used in time zones with a mark.
In the Lord Howe Island time zone in Australia with a mark, the time is
advanced by 30 minutes while Daylight SavingTime (SummerTime) is in effect.
This watch corresponds to DST in the Lord Howe Island time zone.
The time zone of each region and DST (Daylight SavingTime) are as of
January 2014.
Display of time zone
Representative city names…29 cities
among the total of 40 time zones
around the world
Time difference…+14 hours ~ –12 hours
City
code
Display of time
difference
City name UTC
± hours
BJS 8 Beijing +8
— • Eucla +8.75
TYO 9 Tokyo +9
ADL • Adelaide +9.5
SYD 10 Sydney +10
— •  Lord Howe
Island +10.5
NOU 11 Nouméa + 11
— • Norfolk
Island +11.5
WLG 12 Wellington +12
— • Chatham
Islands +12.75
TBU 13 Nuku’alofa +13
CXI 14 Kiritimati +14
—–12 Baker Island –12
MDY – 11 Midway
islands –11
City
code
Display of time
difference
City name UTC
± hours
LON UTC London 0
PAR 1
Paris/Berlin
+1
CAI 2 Cairo +2
JED 3 Jeddah +3
— • Tehran +3.5
DXB 4 Dubai +4
— • Kabul +4.5
KHI 5 Karachi +5
DEL • Delhi +5.5
— • Kathmandu +5.75
DAC 6 Dhaka +6
— • Yangon +6.5
BKK 7 Bangkok +7
City
code
Display of time
difference
City name UTC
± hours
HNL –10 Honolulu –10
— •
Marquesas
Islands
–9.5
ANC –9 Anchorage –9
LAX –8 Los Angeles –8
DEN –7 Denver –7
CHI –6 Chicago –6
NYC –5 NewYork –5
CCS • Caracas –4.5
SCL –4 Santiago –4
— • St. John’s –3.5
RIO –3 
Rio de Janeiro –3
FEN –2 Fernando de
Noronha –2
PDL –1 Azores –1

13 14
Time Zone Adjustment
Go to a place where
GPS signals can be
easily received
1
Move to the outdoors
under an open sky
with good visibility.
When the second hand
points to “Y” or “N,”
reception is completed.
4
During movement of the
date, the buttons cannot be
operated.
Manually set Daylight Saving
Time (DST).
The reception result is
displayed for 5 seconds.
Then, the hour and minute
hands move, and the time
and date are adjusted. (The
time zone is also adjusted
to the local time zone.)
Continue to press Button B (6 seconds),
and then release it when the second hand
moves to the 30-second position.
2
Although the small second hand moves to the
0-second position 3 seconds after pressing
Button B, continue to press it.
When the second hand has reached
the 30-second position, reception is
started.
The indicator hand points to “4+.”
While the indicator hand points to “low” or ,
reception is not started even with operation
for reception.
When the hand points to “low,” charge the
watch by exposing it to light.
Check whether the watch is able/unable to
receive GPS signals
When the hand points to , reset the in-
flight mode ( ).
Press for
6 seconds.
3Direct the watch face upward and
wait
<
Display during reception (= satellites
acquisition status)
>
The second hand indicates ease of
receiving (= number of GPS satellites
from which GPS signals are received).
Even when the hand
points to 4 units or more,
reception may not be
allowed.

Please note that it may be difficult to receive
GPS signals while you are in motion.
To cancel the
reception, press
Button A.
It takes a maximum
of 2 minutes to
complete reception.
It depends on the
receiving conditions.
Press
Button A.
Second hand
position
25-second
Number of
satellites
5 units
BPC
JJY
May receive
E
a
s
y
t
o
r
e
c
e
i
v
e
C
a
n
n
o
t
r
e
c
e
i
v
e
3 units
4 units
5 units
6 units
・
・
・
・
・
・
2 units
0 units
The larger
the number
of acquired
satellites there
are, the easier
it is to receive
GPS signals.
Reception
result
display
Y: Successful N: Failed
Display
Check that the reception
is successful after the
watch returns to the
time display mode.
The time zone where you are is localized to adjust the watch to the precise current time by
just one button operationanywhere in the world.
DST (Daylight Saving Time) can be set manually.
6
How to adjust the time zone
Time zone adjustment
Precautions on time zone adjustment
If the time zone is adjusted near a time zone boundary, the time of the adjacent time zone may be displayed.
In some areas the boundaries observed by the watch may not exactly correlate to the actual time zone markers on the land.
This does not indicate a malfunction. In this case, set the time zone in the manual time zone setting mode.
When the time zone is adjusted while traveling on land, avoid time zone boundaries to carry out time zone adjustment in the
representative cities in the time zone whenever possible. In addition, when the watch is used near time zone boundaries, make
sure to check the time zone setting, and manually set the time zone as necessary.
When the stopwatch is operating, the reception function will not be activated.

15 16
Manual time zone selection
In places where the time zone cannot be adjusted, the time zone can be set manually.
Pull out the crown to the first
click
1
The Stopwatch 1/5-second
hand moves to display the
currently set time zone.
Push the crown back in
3
The stopwatch 1/5-second
hand returns to the
0-second position.
The indicator hand returns
to the display of charging
status.
Turn the crown and set the stopwatch 1/5-second hand to the time zone of the
destination
2
When the crown is turned,
the stopwatch 1/5-second
hand moves to the next
zone.
During movement of the
date, the buttons and crown
cannot be operated.
How to manually set the time zone
0 1 2
Pull out
to the
1st click
Turn the crown
clockwise to
advance 1 time
zone.
Turn the
crown counter
clockwise to
set back 1 time
zone.
< Display of the indicator
hand >
Displays ON/OFF setting of
DST (Daylight SavingTime).
0 1 2
Push
back in
7
Manual time zone selection
DST OFF ON
Display
Hand
position •DST

17 18
DST (Daylight Saving Time)
8
3
Carry out steps ①to ③in the state where DST (Daylight SavingTime) setting is ON.
In step ②, adjust the indicator hand to the “OFF” position as shown in the figure at the right.
The hour and minute hands return by one hour.
DST (Daylight Saving Time) is not automatically changed.
ON/OFF of the DST is not automatically changed with operation of time zone adjustment/manual time zone selection.
When traveling to a region where DST (Daylight Saving Time) is not adopted from a region where it is adopted, turn off the DST
setting.
Turn OFF DST (Daylight Saving Time)
The indicator hand moves
to indicate the current DST
(Daylight SavingTime) setting.
The stopwatch 1/5 second hand
moves to indicate the current
time zone.
< When DST (Daylight Saving
Time) setting is OFF >
Pull out the crown to the first click
1
DST (Daylight Saving Time) can be manually set.
Turn ON DST (Daylight SavingTime)
If the stopwatch is being used, it will be
reset.
0 1 2
Pull out
to the first
click
The stopwatch 1/5 second hand returns to the 12 o’clock
position.
0 1 2
Push
back in
Push the crown back in
Continue to press Button B
(3 seconds) within 5 seconds
after operation of ①
2
The indicator hand moves
to point to “DST (ON),”
and the hour and minute
hands advance by one
hour.
0 1 2
Press for
3 seconds.
In the Lord Howe Island time
zone in Australia, the time is
advanced by 30 minutes while
DST (Daylight Saving Time) is
in effect.