How to use (For models with the date)
Models: 2L75, 4L75, 6L75, 8L75, 6S37, 6S77, 6S78
bCAUTION
Do not amend the date when the watch is displaying between 8:00 p.m. and 2:00 a.m.
If the date is set during this period of time, the date may not change when the next day comes,
or this may cause damage.
How to set the time and date
This watch is equipped with the date display function. The date changes once every 24 hours
at around midnight.
Therefore, if the a.m./p.m. is incorrectly set, the date will change around 12:00 p.m.
1Make sure that the watch is operating.
To carry out the procedure, please make sure that the watch is in working state.
Please wind the mainspring when the watch is not working.
“How to wind the mainspring”→ P. 13
5
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2Pull out the crown to the first click.
(If the watch is equipped with the
screw down crown, unscrew the
crown before pulling it out.)
3The date can be adjusted by turning
the crown clockwise (12 o’clock
direction).
First turn the crown clockwise until
the previous day’s date from the
desired date appears.
【Ex.】If you want to set the date
to “6,” set the date to “5”
by turning the crown
clockwise.
16 HOW TO USE
How to use (For models with the date)
6
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4Pull out the crown to the second
click. Pull out the crown when the
seconds hand (or the small seconds
hand) is at the 12 o’clock position.
(The seconds hand or the small
seconds hand will stop.)
Turn the crown clockwise until the
desired date appears. The time is
now set for the a.m. period. Further
turn the crown to set the current
time
5Push the crown back into the normal
position in accordance with a time
signal. The watch starts operating.
(If the crown of your watch is a
screw lock type, lock the crown.)
bCAUTION
Due to its gear train mechanism, for setting the time of the mechanical watch correctly, the
hands should be set back once slightly and then set forward to the correct time.
Date adjustment at the end of the month
It is necessary to adjust the date after February (which has 28 days, 29 days in a leap year)
and a 30 day month.
【Ex.】To adjust the date in the a.m. period on the first day of a month following a 30-day
month
On the first day, “31” is displayed. Pull out
the crown to the first click. Turn the crown
clockwise (12 o’clock direction) to set the
date to “1”, and push the crown back in to
the normal position. 1
bCAUTION
○ For models with a screw down crown, remember to screw the crown in.
○ Do not amend the date when the watch is displaying between 8:00 p.m. and 2:00 a.m.
Doing so may cause damage.
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HOW TO USE
How to use (For models with the date)
English
