Points to be checked
Reception was successful (the reception result is displayed as “Y”), but time has gained or lost.
Check the time zone setting.
Check the time zone and DST (Daylight Saving Time) settings
If the currently set time zone does not correspond to the region where you are, set the time zone by either of the following operations.
Place where GPS signals can be easily received How to adjust the time zone
Place where GPS signals cannot be received How to manually set the time zone
Check DST (Daylight Saving Time) setting.
Check the time zone and DST (Daylight Saving Time) settings
If DST (Daylight Saving Time) setting does not correspond to the addition conditions of DST (Daylight Saving Time) of the region where you are, set DST (Daylight Saving Time) with reference to Turn ON DST (Daylight Saving Time).
Automatic time adjustment may not get activated for a few days.
Automatic time adjustment
The automatic time adjustment function is unlikely to be activated due to low energy stored in the watch or depending on the environment.
To immediately adjust the time, refer to How to adjust the time zone.
When the watch is unable to display the precise time or date, or the sub-dial, day hand or indicator hand does not point to the correct position even when it has successfully received GPS signals, the preliminary position may be misaligned.
The preliminary position is misaligned due to the following reasons.
Strong impact such as dropping or hitting
Things around you which generate magnetism
Examples of common magnetic products that may affect watches
When comparing the state of “Misaligned Preliminary Hand Position” to that of a weight scale, it is like “a scale which is unable to display the correct weight because its needle is not set to the zero position before weighing.”
Adjusting the preliminary position of the hour, minute, second, and indicator hands (Automatic hand position adjustment function)
The hour, minute, second, and indicator hands have an “automatic hand position adjustment function,” which automatically corrects an incorrect preliminary position.
The automatic hand position adjustment function is activated once every 12 hours (12:00 AM and PM) for the hour hand, once an hour for the minute hand, once a minute for the seconds hand, and once every 24 hours (12:00 AM) for the indicator hand.
This function works when the preliminary hand position is misaligned due to external factors such as strong impact or magnetic influence.
It does not work to adjust accuracy of the watch or slight misalignment which may occur during the manufacturing process.
The preliminary positions of the hour, minute, and indicator hands can be manually adjusted.
Adjust the preliminary position of the sub-dial, day hand, date, indicator hand, and hour/minute hands
Adjusting the preliminary position of the sub-dial, day hand, and date
Since the preliminary positions of the sub-dial, day hand, and date are not automatically adjusted, they must be adjusted manually.
Preliminary position of this watch
The preliminary position of the date is “1” (1st).
The preliminary position of the indicator hand is “full.”
The preliminary position of the hour/minute hands is “12:00 AM”.
The preliminary position for the sub-dial and the AM/PM hand is “12:00 AM”.
The preliminary position of the day hand is “SUN (Sunday).”
Adjust the preliminary position of the sub-dial, day hand, date, indicator hand, and hour/minute hands
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Pull out the crown to the second click
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Continue to press Button B (3 seconds)
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Turn the crown to adjust the sub-dial and AM/PM hand to “12:00 AM”
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Press Button B and then release it
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Turn the crown to adjust the day hand (a day of week) to “SUN (Sunday)”
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Press Button B and then release it
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Turn the crown to adjust the date to “1”
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Press Button B and then release it
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Continue to press Button A (3 seconds)
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Push the crown back in
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Set the time by receiving GPS signals
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Carry out manual time zone setting
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Manually set the time
The seconds hand moves to display the sub-dial of the currently set time zone.
Pull out
the crown to the second click
The watch enters the mode to adjust the preliminary position of the sub-dial.
Press for 3 seconds
The seconds hand stops at the 36-second position.
The sub-dial and the AM/PM hand turn and stop to indicate the preliminary position.
When the sub-dial and AM/PM hand are “12:00 AM”, go to operation 
.
Turn the crown clockwise to advance 1 step.
Turn the crown counterclockwise to set back 1 step.
Turn quickly to move continuously.
Turn again to stop moving.
At this time, the sub-dial and AM/PM hand move along together.
Correctly adjust them to “12:00 AM”.
The watch enters the mode to adjust the preliminary position of the day hand.
Press and then release
The seconds hand stops at the 7-second position.
The day hand (a day of week) turns and stops to indicate the preliminary position.
When “SUN (Sunday)” is displayed, go to operation 
Turn the crown clockwise to advance 1 step.
Turn the crown counterclockwise to set back 1 step.
Turn quickly to move continuously.
Turn again to stop moving.
The day hand turns a full circle but this is not a problem.
The watch enters the mode to adjust the preliminary position of the date (and the indicator hand).
Press and then release
During movement of the date, the buttons cannot be operated.
The seconds hand stops at the 18-second position.
The indicator hand moves and the automatic hand position adjustment is done, indicating the “full” position. When doing so, it moves clockwise or counterclockwise; however, this is not a malfunction. Furthermore, the indicator hand continues to spin and stops to indicate the preliminary position for the date.
The date moves by the indicator hand rotating.
Adjust the date to display “1”.
If “1” appears for the date, go to operation 
Turn the crown clockwise to advance 1 day.
Turn the crown counterclockwise to go back 1 day.
Turn the crown quickly to move it continuously. Turn the crown again to stop.
The watch goes into the preliminary position setting mode of the hour and minute hands.
Press and then release
The seconds hand stops at the 0-second position.
The hour/minute hands move, and stop at “12:00 AM”.
Press for
3 seconds
The watch exits the mode to adjust the preliminary position, and the seconds hand and the hour/minute hands start moving.
Push back in
When you are in a place where GPS signals can be easily received, adjust the time zone.
After operation of 
to 
is completed, make sure to set the time.
When you are in a place where GPS signals cannot be received