Seiko C-21 - How to Manually Set the Day of the Week

Button A
Press for
2
seconds
Button A
Press for
2
seconds
2
Keep pressing down the Button A (for 2
seconds) until the seconds hand moves to
point to the 55-second position.
3
Keep pressing down the Button A (for 2
seconds) until the seconds hand moves to
point to the 13-second position.
The watch enters the manual date setting mode.
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TROUBLESHOOTING
Button B
Press
0
1
Push the
crown
back in
4
Press the Button B to set the date.
To advance a
date
Press button once and then release it.
Continuous
Advance
Keep pressing down the button for
longer than 2 seconds. Press the button
once again to stop.
*
The hands do not move by turning the crown.
*
While the date is moving, the button cannot be operated.
*
Set the date by advancing the date. The date cannot be
reversely moved.
5
Push the crown back in.
The operation is completed.
*
When the crown is a screw lock type, lock it. → P.14
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TROUBLESHOOTING
■ How to manually set the day of the week
•
The day of the week can be adjusted independently regarding of the time or the date.
•
To use the watch in a radio signal receivable condition again, conduct automatic signal reception to set the day of
the week. “Automatic reception and manual reception” → P.18
* When the watch receives radio signals after the day of the week is manually adjusted, it displays the day of the week received
from the radio signals.
* If the day of the week remains incorrect even after a successful radio signal reception, the preliminary position of the day hand
may be misaligned.
“Setting the preliminary position of the date, day hand, hour and minute hands” → P.82
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TROUBLESHOOTING
0
1
2
Pull out the
crown to the
first click
Button A
Press for
2
seconds
1
Pull out the crown to the first click.
The seconds hand rotates until it points to the 30-second
position and stops.
Both the main watch and the sub dial continue to operate.
*
When the crown is a screw lock type, unlock it. → P.14
2
Keep pressing down the Button A (for 2
seconds) until the seconds hand moves to
point to the 55-second position.
The watch enters the manual day of the week setting
mode.
EN
79
7
TROUBLESHOOTING