Seiko 6M13 User manual

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FEATURES
MODES AND D|SPLAYS.........:..... ......:..................
INDICATION OF THE HANDS
ADJUSTING THE HAND AND DATE POSITIONS
TIME SETTING ...........
CALENDAR
ALARM
CALENDAR SEARCH ..........:.......
NECESSARY PROCEDURE AFTER BATTERY CHANGE
BATTERY LIFE INDICATOR
BATTERY CHANGE
TO PRESERVE THE OUALIW OF YOUR WATCH
SPECTFtCATIONS ........
PERPETUAL CALENDAR
Cal. 6M13 ,:i
FEATURES
The SEIKO Quartz Watch Cal. 6M13 is an analogue watch with three hands
featuring alarm, calendar and calendar search functions.
r flME
lndicated by three hands.
I CALENDAR
Date is displayed in numerals, and day of the week, month and year are
i ndicated by the hands. The calenda r automatical ly adjusts for odd and even
months including February of leap years from 1400 to 2499.
r ONE.DAY ALARM
Can be set to ring once at a designated time and date within a month.
r DAILY ALARM
Can be set to ring regularly once a day.
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I CALENDAR SEARCH FUNCTION
The day of the week for any desired date, month and year from 1400 to 2499
can easily be determined and displayed by one of the hands.
r BATTERY LIFE INDICATOR
The second hand moves at two-second intervals when the battery needs to
be replaced.
MODES AND DISPLAYS
There are four buttons and a crown as indicated in ttre iltustration below.
ITIME model
Hour hand Minute hand

The mode changes by turning the crown at normal position clockwise or
counterclockwise. The respestive setting (and adjustmentl modes are
activated when the crown ii pulled out.
ffi ri-t":r ffi <.---.' ffi ,'*n m
INDICATION OF THE HANDS
o The tips indicate the time; the tails indicate month, year and day of the
week. tTip of the hands: For time indicationl
Hour Minutes Seconds*
MonthlTail of the
* By pulling out the crown in the CALENDAR and CALENDAR SEARCH
modes, the tip of the second hand moves to indicate the first 2 digits of the
year.
l\lata. Tha rlaeinn nf +ha hando marr ii{fa: ^l;^L+1., f-^* -^J^l +^ -^l^l
I
I
Day of the week
indicationl
Last 2 digits of year
hands: For calendar

o Whether to read the tip or the tail depends on the mode used. Refer to the
illustrations below.
TIME mode
Ex.) 10:08'42" AM
Hour
24-hour hand
\|":l;Hr
Mode indicator
1 Extended 1
CALENDAR and CALENDAR SEARCH modes
Ex.) Tuesday, Auguet 6th, 1991
lCrown at normal positionl
Day of,the week
2 digits of year
lCrown at extended positionl
First I digits of year
Last 2 digits of year
Crown
a

ONE-DAY ALARM and DAILY AIARM modes
lCurrent time (crown
at normal position)l
Ex.) 10:10 AM of 6th, Tuesday
Day of the week Second
(Stops at 12 o'clock
position
lDesignated alarm time (crown
at e)dended positionll
Ex.) 9:00 AM of 20th (For ONE-
DAY ALARM mode)
Crown
er
Ef
r Normal .
I position I'l*r[,
Mode indicator 24_hour hand \Mode indicator
* ln fha nAll V Al ARM rnnda the errrrenf data rernainq shorrun even if the
ADJUSTING THE HAND AND DATE POSITIONS
Before setting the time and calendar, be sure to use the O MATCH mode
to check that the hour, .minute and second hands are in the 12 o,clock
position and that the date numeral appears at the center of the calendar
frame.
o Turn the crown to set the mode indicator to "O MATCH'.
lf any of the tips of the hands do not'return to the 12 o'clock position or
the date numeral does not appear at the center of the calendar frame,
reset them following the procedure below.
Minute hand Second hand
lendar frame
Hour hand
24-hour hand

1.
2.
Pull out the crown.
Press "8" , " A" and "C" repeatedly but separately to reset the tips of the
hour, minute and second hands to the 12 o'clock position, respectively.
*The hands move quickly if the respective buttons are kept pressed for
2 seconds.
*The 24-hour hand moves correspondingly with the hour hand. When
resetting the hour hand to the 12 o'clock position, check thatthe 24-hour
hand indicates "24".
Press "D" to put the date to the center of the calendar frame.
* By pressifig "D", the date moves back and forth repeatedly.
*The date moves quickly it'D" is kept pressed for 2 seconds.
Push the crown back in to the normal position.
3.
TIME SETTING
r Turn the crown to set the mode indicator to "TIME"
Ex.l 10:08'00" AM
Minutes
Date
E) cro-n
\ ,Extended.
t( position )
1. Pull out the crown. The tip of the second hand automatically returns to
the 12 o'clock position.
2. Press "A" tepeatedly to set the tip of the minute hand to the desired

* As the minute hand moves, the hour hand also moves correspondingly.
3. Press '8" repeatedly to set the'tip of the hour hand to the desired hour.
It advances one hour with each press of the button.
*The hand moves quickly if the button is kept pressed for 2 seconds.
*The minute hand will not move if 'B' is pressed.
*The 24-hour hand turns a full circle in 24 hours and moves
correspondingly with the hour hand. When setting the hour hand,
check that the 24-hour hand is correctly set.
4. Push the crown back in to the normal position in accordance with a time
signal.
CALENDAR
o Turn the crown to set the mode indicator to "CALENDAR'.
The tails of the hour, minute and second hands indicate month, last 2
How to read the calendar
lCrown at the normal positionl
Ex.) Tuesday, August 6th, 1991
Last 2 digits
lCrown at the extended positionl
Ex.) August 6th, 1991
2 digits
of year Last 2 digits qf year
Day of the week
Crown Month
of year
Date
Crown
'7
Dl
, Normal . Mode/
( position ) indi""to, , Extended .
( position )
* By pulling out the crown, the tip of the second hand moves to indicate the
first 2 digits of the year. Therefore, the year is the aggregate of the figure
indicated by the tip of the second hand and the figure indicated by the tail
of the minute hand. The year in the example above should be read as
"1991" (1900 + 91).
*The month is renrescnted hv thc harlr rnarkar Tha 1 n'nlnak rrr'arbar
B

Calendar setting
Last 2 digits of year 2 digits of year
Mode indicator
Pull out the crown in the CALENDAR mode. The tip of the second hand
indicates the first 2 digits of the year.
Press "C" repeatedly to advance the tip of the second hand, and set the
first 2 digits of the year. lt advances one hundred years with each press
of the button.
*14 ,'ail ic nraccad rrrhen the second hand indicates '24OO". it will
1.
2.
3. Press 'A" to move the tail of the rninute hand, and set the last 2 digits of
the year. lt advances one year with each press of the button.
* lf 'A' is pressed when the tail of the minute hand indicates "99", it will
automatically return to "00".
4. Press "8" to move the tail of the hour hand, and set the month. lt
advancesonemonthwitheachpressofthebutton.
* lf "8" is pressed when the tail of the hour hand points to the 12 o'clock
position (December), it will automatically turn a full circle and stop at
the 1 o'clock marker (January).
5. Press "D" to setthe date numeral in the calendarframe. lt advances one
day with each press of the button.
6. Push the crown back in to the normal position.
Notes:
1 . Once the date, month and year are set, the day of the week is automatica I ly
set. : '
2. The hands and date numeral advance quickly if the respective buttons
are kept pressed for 2 seconds.
3. The calendar automatically adjusts for odd and even months including
Februarv of lean vears from 14OO to 2499- lf a nonexistent dav (e.o.

position, the calendar will automatically be set to the first day of the next
month (March lst).
ALARM
1I ONE.DAY ALARM
r The one-day alarm can be set to ring once at a designated time and date
within a month. lt can be set on a 24-hour basis.
* lf the alarm is set to ring on the dates below, it may ring on the desig-
nated date of the next month.
. 31st of months with 30 or fewer days
. 29th, 30th or 31st of February (30th and 31st in leap years)
* Once set, the alarm is automatically engaged and cannot be canceled.
*After having rung at a designated time, the alarm is automatically
disengaged and will not ring again unless newly set.
*The alarm rings in any mode, but it will not ring if the crown is at the
extended position.
. Turn thecrownto setthe mode indicatorto'ONE DAYALARM". Thetips
of the hour and minute hands indicate the current time, the tail of the
aaannd hlnrl inrlinatac tha rlaw nf +ha rrraalr anrl tha ^rr.rant r{.ata annaarc
24-hour ha
Pull outthe crown in the "ONE-DAYALARM" mode. Thetip ofthe second
hand automatically returns to the 12 o'clock position and the tips of the
hour and minute trands indicate the alarm time previously set.
* lf the one-day alarm has already been set and engaged, the designated
alarm date will appear in the calendar frame. Otherwise, today's date
will appear.
Press " A' repeatedly to set the tip of the minute hand to the desired
minr r+a l+ ^-1.,^-^^ -i-..+^ .^.:.L ^^^L ^t rl-^ l-..g--
Date
$ cro*n
\ , Extended r
-( po"iti- I
Mode indicator

3. Press "8" repeatedly to set the tip of the hour hand to the desired hour.
It advances one hour with each'press of the button.
*The minute hand will not move it'B' is pressed.
*The 24-hour hand moves correspondingly with the hour hand. Check
that the 24-hour hand is set correctly.
4. Press "C" and "D" to set the date numeral. With each press of "C", the
date moves back one day. With each press of "D", it advances one day.
5. Push the crown back in to the normal position.
* The hands and date will indicate the current time and date.
Note: The hands and date move quickly if the respective buttons are kept
pressed for 2 seconds.
r The alarm rings at the designated time tor 2O seconds. To stop it
manually, prgss " A" , "B" r "C" or "D" .
o To set the alarm for the same time and date the following month, pull out
the crown and push it back in to the normal position in the ONE-DAY
ALARM mode, preferably just after the alarm has rung but not later than
midnight of that day. lf the crown is pulled out and pushed back in later
than this, the current day and date will replace those previously set
How to check the one-day alarm time you have set
lCrown at normal position:
Current timel
Ex.l 10:10 AM of 6th, Tuesday
lCrown at extended position:
One-day alarm timel
Ex.l 9:00 AM of 20th
Day of
I

1.
2.
Pull out the crown.
*The tip of the second hand will return to the 12 o'clock position, and the
tips of the hour and minute hands indicate the one-day alarm time you
have set.
Push back the crown in to the normal position.
*while the date numeral is moving to indicate the current date, button
operation is not possible.
2I DAITY A1ARM
' The daily alarm can be set to ring regularly at a designated time of day.
It is set on a 24-hour basis and rings once a day. .
' Turn the crown to set the mode indicator to "DAlLy ALARM". The tips
of the hour and minute hands indicate the current time, the tail of the
, second hand indicates the day of the week and the current date appears
in the calendar frame. 1.
Daily alarm setting
Pull out the crown in the "DAILY ALARM" mode. The tip of the second
hand automatically returns to the 12 o'clock position, and the tips of the
hour ancl minttte hanrls indieafc the alarrn fima nrawiarrclw cef

2. Press "A" repeatedlyto setthe tip of the minute hand to the.desired
minute. lt advances one minute with each press of the button.
* As the minute hand moves, the hour hand also moves correspondingly.
3. Press "8" repeatedly to set the tip of the hour hand to the deiired hour.
It advances one hour with each press of the button.
*The minute hand will not move if "8" is pressed.
*The 24-hour hand moves correspondingly with the hour hand. Check
that the 24-hour hand is set correctly.
4. Push the crown back in to the normal position.
*The hands and date will indicate the current time and date.
Note: The hands move quickly if the respective buttons are kept pressed
for 2 seconds.
How to check the daily alarm time you have set
lCrown at normal position:
Current timel lCrown at extended position:
Daily alarm timel
Ex.) 10:10 AM of 6th, Tuesday Ex.) 9:00 AM of 6th
Day of
the week
A
Hour
24-hour
hand
B
Mode
indicator
Hour
A
DB
4-hour hand )
/ Crown
ilaI
I
Di
Extended
position
1 Normal 1
I posttton,
1. Pull out the crown. indicator
*The tip of the second hand will return to the 12 o'clock position, and the
tips of the hour and minute hands indicate the daily alarm time you have
set.

Daily alarm engagement/disengagement
. To ehgage the daily alarm, turn the crown to set the mode indicator to
"DAILY ALARM' or "ONE DAY ALARM".
. To disengage the alarm, turn the crown to Set the mode indicator to
"TIME'.
* The alarm rings at the designated alarm time for 20 seconds. To'stop it
manuaf ly, press o A" , "8" , "C" or "D" .
* lf the one-day alarm is set to ring at the time designated for the daily
alarm, only the one:day alarm will ring.
3I ALARM TEST
The one-day alarm and daily alarm ring differently. They can be tested in the
following way.
One-day alarrn
1. Turn the crown to set the mode
indicator to "ONE DAY ALARM'.
2. Press "A" and "B" at the same time.
The one-day alarm rings while the
buttons are kept pressed.
Mode indicator
Daily alarm
1. Turn the crown to set the mode
indicator to "DAILY ALARM".
2. Press "A" and "8" at the same time.
The daily alarm rings while the
buttons are kept pressed.

CALENDAR SEARCH
. By setting the date, month and year from Janu ary 1, 1400 to December
31,2499, the day of the week of the designated date will be indicated by
the tail of the second hand.
Note: The calendar of the watch follows the Julian calendar from January
1, l40OtoOctober 4,1582and the Gregorian calendarfrom October
15, 1582 to December 31, 2499. This is because the Julian calendar
was revised to the Gregorian calendar on October 4, 1582, which
corresponds to October 14 according to the Gregorian calendar.
Therefore, if a date from October 5 to 14 of 1582 is set in the
CALENDAR SEARCH rnode, it will be automatically advanced to 15,
and "Friday" will be indicated as the day of the week.
*The year when the Gregorian calendar was adopted differs from
country to country.
o Turn the crown to set the mode indicator to "SEARCH". The tails of the
hour, minute and second hands indicate the current month, last 2 digits
of the year and day, respectively.
How to read the calendar in "CALENDAR SEARCH" mode.
lCrown at normal positionl
Ex.) Tuesday, August 6th, 1991
Last 2 digits
of year
lCrown at extended positionl
Ex.) August 6th, 1991
First 2 digits
of year
Day of the week Last 2 digits of year
l" B
| "'"'(
Crown
Eh
\
I
t,
, Normal ' /
[ ^^^t.t^^ I .r^r^ ,'^ur^^rn.

How to use the calendar search funstion
lCrown at extended positionl
Ex.) February 3rd, 2035
First 2 digits of
[[Crown at normal positionl
Ex.) Saturday, February 3rd, 2035
1.
2.
3.
4.
Pull out the crown in the CALENDAR SEARCH mode. The tip of the
second hand indicates the first 2 digits of the year.
Press "C" repeatedly to advance the tip of the second hand, and set the
first 2 digits of the year. lt advances one hundred years with each press
of the button.
*lf uC" is pressed when the second hand indicates "2400u, it will
automatically return to "1400".
Press "A" to move the tail of the minute hand, and set the last 2 digits of
the year. lt advances one year with each press of the button.
* ,f ' A" is pressed when the tail of the minute hand indicates "99", it will
automatically return to "00".
Press "8" to move the tail of the hour hand, and set the month. lt
advances one month with each press of the button.
* lt 'B' is pressed when the tail of the hour hand points to the 12 o'clock
position {December), it will automatically turn a full circle and stop at
the 1 o'clock marker (January).
Press "D" to set the date numeral in the calendar frame. lt advances one
day with each press of the button.
5.
Mode indicator

6. Push the crown back in to the normal position. The tail of the second
hand will indicate the day of the week of the designated date.
Notes:
1. The hands and date numeral advance quickly if the respective buttons
are kept pressed for 2 seconds.
2. lf a nonexistent day (e.9. February 30th) is set and the crown is pushed
back in to the normal position, the calendar will automatically be set to
the first day of the next month (March 1st).
3. Once the mode is changed over to another, the calendar designated in
the CALENDAR SEARCH mode is no longer retained. When the mode is
changed over to the CALENDAR SEARCH again, the hands will indicate
the current calendar.
NECESSARY PROCEDURE AFTER BATTERY CHANGE
When the battery is replaced, the information stored in the lC does not
correspond with the time and date actually displayed. Before using the
watch, therefore, be sure to reset the tips of the hands to the 12 o'clock
position and put the date numeral "1" to the center of the calendar frame,
following the procedure below.
. Turn the crown to set the mode indicator to "@ MATCH".
fucro.on
\H*l*""'r

1.
2.
3.
Pull out the crown.
Keep "A", "8", "C" and "D" prgssed at the same time for 3 seconds.
When the buttons are released, a beep sounds and the hands turn a full
circle once or twice.
Press "8" ,'A" and "C" repeatedly but separately to reset the tips of the
hour, minute and second hands to the 12 o'clock position, respectively.
*The hands move quickly if the respective buttons are kept pressed for
2 seconds.
*The 24-hour hand moves correspondingly with the hour hand. When
resetting the hour hand to the 12 o'clock position, checkthatthe 24-hour
hand indicates "24".
4. Press "D" to put the date to "1". With each press of "D" , the date moves
slightly.
*The date moves quickly if "D" is kept pressed for 2 seconds.
5. Push the crown back in to the normal position.
6. Turn the crown to set the mode indicator to "TIME" to set the desired
time. (Refer to "TIME SETTING".I
7- Turn the crown to set the mode indicator to "CALENDAR" to set the
BAfiERY LIFE INDICATOR
The battery needs to be replaced when you see the second hand moving at
two-second intervals instead of normal ofl€:s€Golld intervals.
The watch will, however. remain accurate while the second hand is moving
at two-second intervals.
BATTERY CHANGE
The miniature battery which powers your watch should last
approximately 2 years. However, because the battery is inserted at
the factory, its aotual life once in your possession may be less than
the specified period. When the battery expires, be sure to replace it
as soon as possible to prevent any possible malfunction. For battery
replacement, we recommend that you contact an AUTHORIZED SEIKO
DEALER and request SEIKO SR927W battery.
Note: lf the one-day alarm or daily alarm is used more than once a
day, the battery life may be less than the specified period.

ffi
ffi
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TO PRESERVE THE OUALITY OF YOUR WATCH
I WATER RESISTANCE
. Non-water resistanoe
lf "WATER RESISTANT" is not inscribed on the case back, your
watch is not water resistant, and care should be taken not to get it
wet as water may damage the movement. lf the watch becomes
wet, we suggest that you have it checked by an AUTHORIZED SEIKO
DEALER or SERVICE CENTER.
e Water resistance (3 barl
lf "WATER RESISTANT" is inscribed on the case back, your watch
is designed and manufactured to withstand up to 3 bar, such as
accidental contact with splashes of water or rain, but it is not
designed for swimming or diving.
. Water rssistance (10 bar/15 barl
lf "WATER RESISTANT 10 BAR'or'WATER RESISTANT 15 BAR"
is inscribed on the case back, your watch is designed and
manufactured to withstand up to 10 barll5 bar and is suitable for
swimming and shallow diving, but not for scuba diving. We
recommend that you wear a SEIKO Diver's watch for scuba diving.
lf used in sea water, rinse the watch in fresh water and dry it
completely.
f)a nnl ^^arafa fha arnwn anrl hr ttinnc in uraior
NOTE:
Pressure in bar is a test pressure and should not be considered as
corresponding to actual diving depth since swimming movement tends
to increase the pressure at a given depth. Care should also be taken
on diving into water.
r TEMPERATURES
Your watch works with stable accuracy between a temperature range
of 5"C and 35'C (41'F and 95"F).
Temperatures over 60'C (140'F) may cause battery leakage or shorten
the battery life.
Do not leave your watch in very low temperatures below -10'C (+14'F)
for a long time since the cold may cause a slight time loss or gain.
However, the above conditions will be corrected when the watch re-
turns to normal temperature.
I SHOCKS & VIBRATION
Light activities will not affect your watch, but be careful not to drop
your watch or hit it against hard surfaces, as this may cause damage.
I MAGNETISM
Your watch will be adversely affected by strong magnetism. Keep it
away from close contact with magnetic objects.

r CHEMICALS
Be careful not to expose the watch to solvents (e.9., alcohol and
gasoline), rnercury (i.e., from a broken thermometer). cosmetic spray,
detergents, adhesives or paints. Otherwise, the case, bracelet, etc.
may become discolored, deteriorated or damaged.
r CARE OF CASE AND BRACELET
To prevent possible corrosion of the case and bracelet caused by
dust, moisture and perspiration, wipe them periodically with a soft
dry cloth.
r PRECAUTION REGARDING CASE BACK PROTECTIVE FILM
lf your watch has a protective film andlor a sticker on the case back,
be sure to peel them off before using your watch. Otherwise,
perspiration getting in under them may rust the case back.
I PERIODIC CHECK
It is recommended that the watch be checked once every 2 to 3 years.
Have your watch checked by an AUTHORIZED SEIKO DEALER or SER-
VICE CENTER to ensure that the case, crown, buttons, gasket dnd
crystal seal remain intact.
SPECIFICATIONS
1 . Frequency of crystal oscillator....
2. Loss/gain (monthly rate) ............
32,768 Hz (Hz = Hertz ... Cycles per
second)
Less than 15 seconds at normal
temperature range (5'C - 35'C) (41'F -
95.F)
-10"C - +60'C (14"F - 140"F)
3.
4.
5.
Operational temperature range .............
Driving system Step motor,4 pieces
Display system
"TIME' Hour, minute, second and date
"ONE DAY ALARM" Hour, minute, date and day
"DAILY ALARM" Hour, minute, date and day
"CALENDAR' .................. ... Year, month, date and day
'SEARCH" ....... Year, month, date and day
"A MATCH" .... Adjusting the hand and date positions
6. Battery SEIKO SR927W, 1 piece
7. lC (lntegrated Circuit) .................. C-MOS-LSI, 1 piece
* The specifications are subject to change without prior notice, for product improve-
ment.