Seiko SSJ013J1 Complete User Manual page 18

4
BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)
List of GPS signal reception methods (characteristics of all three types)
Reception
Time adjustment
method
How to
manually
adjust the time
→ P. 21
Display
Automatic time
adjustment
→ P. 24
Time adjustment
Features
Display the correct current time for
the set (selected) time difference
Number of
acquired
One unit (to obtain only time
satellites
information)
necessary for
reception
Time taken for
3 seconds to 1 minute
reception
To set the watch to the correct time
What kind of
while it is used in the same time
situation
zone (time difference)
Leap second data
Time zone adjustment
reception
How to adjust the
time zone
→ P. 19
Leap second
Time zone identification and
reception
time adjustment
Ready for leap second
Identify the time zone of your current
data reception and
location, and display the correct current
receiving Leap second
time
data → P. 26
Basically more than 4 units (to obtain
time information and time zone
information)
30 seconds to
30 seconds to 2 minutes
18 minutes
This is performed
automatically after
GPS signal reception
(automatic time
When the watch is used in a different time
adjustment, manual
zone
time adjustment, or
time zone adjustment)
on or after June 1st and
December 1st.
GPS signal reception Q & A
Q : When the watch is moved to a different time zone, does the watch automatically display the
local time?
A : The watch does not automatically display the local time just by changing location.
If you are in a place where GPS signals can be easily received, adjust the time zone. The
watch automatically displays the local time.
When you are in a place where GPS signals cannot be received, perform manual time
difference setting (selection).
→ How to perform manual time difference setting
(The watch can be set to any time zone (time difference) around the world.)
Q : Is DST (Daylight Saving Time) automatically changed by receiving GPS signals?
A : Perform time difference setting (selection) manually.
→ How to perform manual time difference setting
(Signals from GPS satellites do not contain DST (daylight saving time or "summer time")
information.)
-
Even within the same time zone, some countries or regions may not follow DST (daylight
saving time or "summer time").
→ List of time differences around the world (for
Q : Is it necessary to carry out special operation for years in which a leap second is added?
A : No particular operation is necessary.
As leap second data is received at the same time as GPS signal reception (automatic time
adjustment or manual time adjustment) on or after June 1st and December 1st, leap seconds
are automatically inserted when GPS signals are periodically received. See "Leap second
(Automatic leap second reception
17
ASTRON 3X62 GPS SOLAR
(selection) P. 23
(selection) P. 23
reference) P. 12
function)" P. 26 for details.