Seiko Astron 3X22 HANDY MANUAL
BSN3X22-A1909
3X22
HANDY MANUAL
Printed in Japan
English
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Thank you very much for
CONTENTS
choosing a SEIKO watch.
For proper and safe use of
your SEIKO watch,
please read carefully the
instructions in this
booklet before using it.
Keep this manual handy
for easy reference.
For details, please read the
“3X22 C omplete User Guide”
(https://w ww.seikowatches.com/global-en/
customerservice/instruction/).
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 CUSTOMER
SERVICE CENTER. The service may also be available
on a chargeable basis at other retailers, however, some
retailers may not undertake 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 to the film
and may cause rust.
1 2
1. Features ��������������� 3
2. Names of the parts ��������� 5
3. Check the charging status ������ 7
4. Time zone �������������� 9
5. List of time differences aroun d the
world (for reference) �������� 11
6. To adjus t the time zone and time by
GPS signal re cep tion (time zone
adjustment) ������������ 13
7. To adjust only the time by GPS
signal reception (manual time
adjustment) ������������ 15
Setting the destination time zone
8.
while in flight, etc. (manual time
renc e set ting), and setting/
diffe
rese tting DST (daylight saving time
or “summe r time”)
9. When b oarding (in-flight mode ( )) � 19
10. Leap second (Automatic leap second
reception function) �������� 21
11. Reception re sult display ������ 23
12. How to check when the time zone
information was configured for your
watch ��������������� 25
��������� 17
Features
1
This is a GPS solar watch.
This watch has the following features.
GPS signal reception
The time on the watch can be adjusted
to the current time with just one button
operation*, anywhere in the world.
DST (day light saving ti me or “summer time”) i s
set manually
This wat ch quickly
adjusts t he time by
recei ving GPS signals
from GPS satellites.
This watch r esponds to
all the time zones around
the world.
When the region or tim e zone where the watch
is used is changed, please carry out operation
of “time zone adjustment.”
Unlike na vigation equ ipment, this G PS solar watc h is not design ed to con stantly re ceive GPS sign als from GPS s atellites w ithout any ope ration.
This watch receives GPS signals only in the time zone adjustment mode, automatic or manual time adjustment mode.
Standard Charging Time
Charge the wa tch us ing th e time s below as a guide.
GPS signal re cep tion c onsumes considerable en ergy. Expo se the watch to light frequent ly, and ch arge t he
watch so that the energy level is “mi ddle” or “ful l”. (If the energy level is “low”, rec eption will not begin
even if G PS signal reception is operated.)
Illumination
lx (LUX)
700
3,000
10,000
100,000
The fig ures of “Time r equired for c harging the wa tch to star t moving at one - secon d interval s” are estima tions of time re quired to char ge the stopp ed
watch b y exposing it t o light until it mo ves at stead y one-sec ond interva ls. Even if th e watch is par tially charg ed for a short er period, th e watch will
resum e one-sec ond- inter val movement . However, it may s hortly ret urn to two -second -interval m ovement. Us e the charging t ime in this colum n as a
rough gu ide for suff icient cha rging time.
The required charging time slightly varies depending on the model.
Light source
Fluorescent light General offices
Fluorescent light 30W 20 cm
Sunlight
Fluorescent light
Sunlight
3 4
Solar charging Function
This watch operates by solar charging.
Expose the dial to light to charge the w atch.
The watch will operate for about 6 months
on a full char ge.
When the energy
stored in the watch
runs out comple tely,
it takes time to fully
charge the wa tch,
so please keep in
mind to charge the
watch regularly.
Condition
(Example)
Cloudy day
30W 5 cm
Sunny day (Under the direct sunlight
on a summer day)
Automatic time adjustment function
This watch automatically adjusts the time in
acc ordance with ac tion pat terns during use.
When the wa tch has sensed suf ficient brightne ss under
an open sky, it aut omatically receive s GPS signals
from GPS satellites. This function enables the watch to
automatically adjus t
the time pre cisely
even while you are
using the watch.
This wa tch is
unable t o receive
GPS sig nals when
the ene rgy stored
in the wat ch is
low.
From the state where the watch is stopped
To fully charged
(not charged)
To one-second interval
－ －
movement is secured
In the state where the hand
moves (the watch is charged)
To move for one day
250 hours 9.5 hours 1 hours
75 hours 3 hours 15 minutes
30 hours 1.5 hours 10 minutes
3.5 hours
Names of the parts
2
Hour hand
Seconds hand
The orientation and design of the display may vary
depending on the model.
5 6
Minute hand
Button A
Crown
Date
Button B
Check the charging status
3
Push and
release
Button B
When Button B is pushed and released, the seconds hand moves, allowing you to check the energy level.
We recommend that you check the “energy level” on a regular basis to ensure that the watch does not do into a
low energy state.
Reception is
allowed
Seconds hand
display
Charging status Solution
Reception is
full
middle
allowed.
Use the watch
as it is.
Reception is
allowed, but keep
in mind to charge
the watch.
Reception is
not allowed
Seconds hand
display
The movement of
the seconds hand
2-second
interval
movement
5-second
interval
movement
Charging status Solution
The watch
is unable to
receive GPS
low
signals, but
has energy
to operate.
Charging status Solution
The energy level is in
a very “low” state.
If the energy depletion
forewarning function
is activated, the
“charging status”
cannot be displayed.
To enable reception,
charge the watch
until the energy
level is at least
“middle”.
To keep the watch
operating and also
enable reception,
continue charging
the watch until the
energy level is at
least “middle”.
7 8
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