Tips For More Accurate Time Setting; How To Set The Calendar; How To Use The 24-Hour Hand; Time Difference Adjustment Function - Seiko 9R66 Instruction

●Tips for more accurate time setting
Keep in mind the following points in order to set the time more accurately.
1. Before setting the time, wind the mainspring sufficiently.
(Ensure that the power reserve indicator is showing a full-wound state.)
2. When starting to use a watch after it stops, wind the mainspring suffi-
ciently. To set the time after that, wait for approximately 30 seconds af-
ter the second hand starts to move, then pull the crown out to the second
click.
60
3. The second hand will stop moving while the crown is at the second click.
Do not stop the second hand movement for longer than 30 minutes. If the
stoppage of the small second hand movement exceeds 30 minutes, push the
crown back in, and wait for at least 30 seconds after the second hand re-
starts moving, and then continue the time setting.
4. To set the time during any time between 9:00 P.M. and 1:00 A.M., tempo-
rarily set the hour hand back to 8:00 P.M., and then set the time.
(This procedure is required to ensure the proper engagement of the calen-
dar driving wheel.)
4. Each time the hour hand makes two full rotations by turning the crown, the date
is adjusted one day. While turning the crown, the moment the date changes is mid-
night. When setting the hour hand, be sure that AM/PM is set correctly.
62
Before
date
adjustment
●How to use the 24-hour hand
This watch has two different types of 24-hour hand usage.
<Type 1>
24-hour hand as an AM/PM indicator
Simply using the 24-hour hand to show the
24-hour time as an AM/PM indicator.
(This is the standard usage type for the
24-hour hand.)
64
Both the hour
hand and the
24-hour hand are
indicating the
Japan time 10:00
A.M.
4. Turn the crown to set the hour hand to indicate the time of the place where you are
staying. Make sure that AM/PM is correctly set.
※ The calendar is designed to work in conjunction with the movement of the hour hand,
therefore, incorrect setting of AM/PM will cause the date to change at noon.
Refer to "List of time zone differences in major regions of the world" on page 70.
Turning the
crown clockwise
66
(upward): The
hour hand is set
back one hour.
※ The crown can be turned in either direction to adjust the date, however, it is recommended to turn the crown in the
direction which enables you to set the date with a smaller adjustment.
※ Turn the crown slowly, checking that the hour hand moves in one-hour increments.
※ While turning the crown, the moment the date changes is midnight.
※ When adjusting the hour hand, the other hands may move slightly. However, this is not a malfunction.
Turning the crown clockwise (upward): Each
time the hour hand makes two full rotations, the
date is set back one day.
※ The crown can be turned in either direction to
adjust the date, however, it is recommended to
turn the crown in the direction which enables you
to set the date with a smaller adjustment.
※ Turn the crown slowly.
※ When adjusting the hour hand, the other hands
may move slightly. However, this is not a malfunc-
tion.
Turning the crown counterclockwise (downward):
Each time the hour hand makes two full rota-
tions, the date is advanced one day.
<Type 2>
24-hour hand as a dual time indicator
Using the time difference adjustment function, set the 24-hour
hand to indicate a time different from the time that the hour and
minute hand indicate, which is of a place in a different time zone
area with at least one hour of time difference from where you are.
Refer to "How to use the time difference adjustment function"
on page 65.
Hour hand: Japan
time 10:00 A.M
24-hour hand: New
York time 8:00
PM
Turning the
crown counter-
clockwise (down-
ward): The hour
hand is advanced
one hour.
●How to set the calendar
Two full rotations of the hour hand will change the date for one day.
The date advances one day by turning the hour hand two full rotations clockwise (for
24 hours), while the date is set back one day by turning the hour hand two full rota-
tions counterclockwise.
Manual date adjustment is required on the first day after a month that has less than
31 days: February, April, June, September and November.
1. Make sure that the mainspring is sufficiently wound and the watch is working.
※When setting the date and time, ensure that the watch is working.
2. Unlock the crown.
Refer to "How to use the screw lock type
crown" on page 52.
3. Pull out the crown to the first click.
5. Upon completion of setting, make sure that the time indicated is correct,
and then push the crown back in. The calendar setting is now completed.
Relock the crown.
Refer to "How to use the screw lock type crown" on page 52.
※ The calendar is designed to work in conjunction with the movement of the hour hand, therefore,
incorrect setting of AM/PM will cause the date to change at noon.
※ The crown can be turned in either direction to adjust the date, however, it is recommended to
turn the crown in the direction which enables you to set the date with a smaller adjustment.
※ Turn the crown slowly, checking that the hour hand moves in one-hour increments.
※ When adjusting the hour hand, the other hands may move slightly. However, this is not a mal-
function.

■TIME DIFFERENCE ADJUSTMENT FUNCTION

For example, while traveling abroad and staying in a place with a different time from where you
live, you can conveniently set the watch to indicate the local time in the different time zone area
without stopping the watch.
The hour hand indicates the time of the place where you currently are, while the 24-hour hand in-
dicates the time of the place of origin.
The calendar works in conjunction with the movement of the hour hand. If the time difference is
correctly adjusted, the watch displays the correct date of the place where you are staying.
●How to use the time difference adjustment function
1. Make sure that the mainspring is sufficiently wound and the watch is working.
※ When setting the hour hand to use the time difference
adjustment function, ensure that the watch is working.
2. Unlock the crown.
Refer to "How to use the screw lock type
crown" on page 52.
3. Pull out the crown to the first click.
5. Upon completion of setting, make sure that the time indicated is correct, and then
push the crown back in. The setting procedure is now completed. Relock the crown.
Refer to "How to use the screw lock type crown" on page 52.
If you set the time during any time between 9:00 P.M. and 1:00 A.M., temporarily set the hour
hand back to 8:00 P.M., and then set the time.
61
Pull out the crown
to the first click.
63
65
Pull out the crown to
the first click.
67