Place where GPS signals can be easily received/Place where GPS signals cannot be received
Easy to receive
Outdoors under an open sky with good visibility
Difficult to receive
The smaller the sky, the more difficult it is to receive GPS signals. In addition, it will also be difficult to receive GPS signals, if there is something that obstructs the GPS signals during reception (in particular, during time zone adjustment).
Between tall buildings
Near wooded area
Indoors with windows
GPS signals cannot be received depending on window glass type.
Refer to the “ Cannot receive.”
The sky cannot be seen or only part of the sky can be seen.
There is something hindering the reception.
Indoors without windows
During passage of a tunnel
Through special glass with thermal emission shield effect, etc.
Close to equipment generating noise or performing wireless communications
List of GPS signal reception methods (characteristics of all three types)
Time zone adjustment
Leap second data reception
Precise current time of the set time zone is displayed
Time zone identification and time adjustment
Time zone where you are is identified, and the precise current time, reflecting the addition conditions of DST (Daylight Saving Time), is displayed
Leap second reception
Ready for leap second data reception and receiving Leap second data Leap second (Automatic leap second reception function)
Number of acquired satellites necessary for reception
One unit (to obtain only time information)
Basically more than 4 units (to obtain time information and time zone information)
Time taken for reception
3 seconds to 1 minute
30 seconds to 2 minutes
30 seconds to 18 minutes
What kind of situation
To set the watch to the precise time while it is used in the same time zone
When the watch is used in a different time zone
This is performed automatically after GPS signal reception (automatic time adjustment, manual time adjustment, or time zone adjustment) on or after June 1st and December 1st.
GPS signal reception Q & A
When the watch is moved to a different time zone, does the watch automatically display the local time?
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, manually set the time zone.
Manual time zone setting
The watch can be set to all time zones around the world.
Is DST (Daylight Saving Time) automatically changed by receiving GPS signals?
The settings for DST (Daylight Saving Time) are done automatically by doing a time zone adjustment.
The time automatically switches to adjust for the adoption and duration of DST (Daylight Saving Time) for regions that follow DST (Daylight Saving Time).
“Normal time” always appears for regions that do not adopt DST (Daylight Saving Time). Manually switch the DST (Daylight Saving Time) setting if you have moved to a place that adopts different DST (Daylight Saving Time) details, even if the area is the same time zone.
Set DST (Daylight Saving Time)
Even in the same time zone, some countries and regions do not adopt DST (Daylight Saving Time).
Time zone display and list of time zones around the world
Is it necessary to carry out special operation for years in which a leap second is added?
No special operation is necessary.
Since the watch receives leap second data at the same time of receiving GPS signals (automatic time adjustment, manual time adjustment, or time zone adjustment) on or after June 1st and December 1st, a leap second is automatically added by periodically receiving GPS signals. For details, refer to Leap second (Automatic leap second reception function).
Check that reception was successful (reception result display)
The type of reception and reception result (success or failure) of the last GPS signal reception is displayed for 5 seconds.