Seiko Watch 7D46 User Guide

Cal. 7D46, 7D48 & 7D56  
INSTRUCTIONS  
BEDIENUNGSANLEITUNG  
INSTRUCTIONS  
ISTRUZIONI  
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INSTRUCCIONES  
INSTRUÇÕES  
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PERPETUAL CALENDAR FUNCTION  
FEATURES  
Once set, the calendar automatically adjusts for odd and even months including  
February of leap years. (Exceptionally, the manual adjustment at the end of  
February is required for the years that are divisible by four but are not leap years,  
which comes only once every hundred years, for example, the year 2100.)  
SEIKO KINETIC Cal. 7D46/7D48/7D56 is an analogue quartz watch equipped with the  
Kinetic technology developed by SEIKO. It generates the electric energy to power the  
watch, utilizing the movement of your body, and stores it in the rechargeable battery,  
which requires no periodical replacement unlike conventional button-type batteries.  
The watch is provided with the following additional functions.  
It takes approximately two seconds for the calendar to change its display. However, it may  
take two minutes if the temperature is low or the stored electrical energy is being depleted.  
POWER SAVE FUNCTION AND TIME RELAY FUNCTION  
While the watch is in power save mode, the perpetual calendar continues to  
function.  
Even if the watch is completely stopped due to a shortage of stored electrical  
energy, the calendar can be manually adjusted by simple procedures.  
In order to conserve the stored electrical energy, the watch automatically enters  
power save mode to stop the hands from moving approximately 24 hours after the  
watch is taken off the wrist. When you decide to wear the watch again, simply  
swinging the watch several times will  
awaken it and the hands will indicate the  
correct time to resume normal operation.  
CAUTION  
The time retrieved by the time relay function  
may include a certain amount of time loss or  
gain within the range of accuracy of the watch  
The movement of your arm while the watch is worn generates electrical energy  
to power the watch. Even if the watch is worn on your arm, it will not be charged  
while your arm is not in motion.  
(
15 seconds per month).  
It is recommended that the watch be worn on your wrist daily for at least 10  
hours.  
In a case that the fully charged watch enters  
the power save mode, the time relay function  
of the watch remains operable for  
approximately four years.  
 
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DISPLAY AND BUTTON OPERATION  
Minute hand  
[Cal. 7D56]  
Minute hand  
[Cal. 7D46]  
Clockwise (Upward)  
Clockwise (Upward)  
Big calendar  
Big calendar  
First click position: calendar adjustment  
First click position: calendar adjustment  
Hour hand  
Second hand  
Year indicator  
Hour hand  
Year indicator  
Second click position: time settings  
Counterclockwise (Downward)  
24-hour indicator  
Second click position: time settings  
Counterclockwise (Downward)  
Second hand  
Month indicator  
24-hour indicator  
Month indicator  
[Cal. 7D48]  
Minute hand  
BEFORE INITIAL USE  
POWER SAVE FUNCTION  
Clockwise (Upward)  
Big calendar  
Hour hand  
This watch is powered by electrical energy generated and stored by the built-in  
First click position: calendar adjustment  
Kinetic System. The watch also features the “power save function,” which  
automatically stops the hands from moving when the watch is not in use for a  
certain period of time to minimize the electrical energy consumption. When the  
watch is in power save mode, the hands stop moving but the built-in IC continues  
to calculate the time and calendar.  
Year indicator  
Second hand  
Month indicator  
Second click position: time settings  
Counterclockwise (Downward)  
When the watch is in power save mode, swinging the watch several times will  
activate the “time relay function,” which automatically resets the watch hands  
to the correct time that has been retained inside the watch.  
24-hour indicator  
Orientation of the displays of year, month and 24-hour indicator may vary depending on the  
model.  
 
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Do not pull the crown out to the second click position while the watch is in power save mode.  
This will cancel the power save function causing the time data retained in the watch to be  
erased.  
Do not leave the watch with its crown being at the second click position, as the watch  
consumes greater energy than it uses while it is in power save mode.  
TIME RELAY FUNCTION  
When the watch is in power save mode, the hands stop moving but the built-in IC  
continues to calculate the time. When a certain amount of electrical power is  
generated, the watch hands are adjusted automatically to the time retained inside  
the watch.  
The operable time of the time relay function varies depending on the electrical  
energy stored inside the watch. In a case that the fully charged watch enters the  
power save mode, the time relay function of the watch remains operable for  
approximately four years.  
<Remarks on Power Save Function>  
When the watch is left untouched for approximately 24 hours (approximately  
one day), the power save function is automatically activated.  
While the second hand is moving at two-second intervals, the power save function  
cannot be activated.  
If the stored electrical energy is completely depleted while the watch is in power save mode,  
swinging the watch will not activate the time relay function. Instead, the second hand starts  
moving at two-second intervals. (Refer to “HOW TO WAKE UP THE WATCH FROM POWER  
SAVE MODE” on page 11 or “IF THE SECOND HAND STARTS MOVING AT TWO-SECOND  
INTERVALS” on page 19. )  
When the power save function is activated, the hour, minute, second and 24-  
hour hands will stop moving.  
While the watch is in power save mode, the calendar continues to function normally.  
When the watch is left untouched in power save mode and if the date does not change  
correctly, the stored electrical energy is being depleted. Recharge the watch until the  
watch resumes the usual one-second interval movement, and then reset the time and  
calendar before starting to wear it again.  
When the watch wakes up from power save mode while it is running on extremely low  
electrical power, the second hand starts moving at two-second intervals. (Refer to “IF  
THE SECOND HAND STARTS MOVING AT TWO-SECOND INTERVALS” on page 19.)  
 
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SCREW LOCK TYPE CROWN  
HOW TO WAKE UP THE WATCH FROM POWER SAVE MODE  
In order to “wake up” the watch from power save mode, swing the watch gently  
from side to side to recharge it.  
Some models have the screw lock type crown, which can be locked by the screw  
when it is not necessary to be operated.  
Do not pull out the crown to the second click position before performing the following  
procedures. This will cancel the time relay function.  
Locking the crown will prevent operating errors.  
Unscrew the crown before any crown operation. When the operation is over,  
screw the crown in to lock.  
Swing the watch from side to side approximately 4 to 6 times rhythmically at  
a rate of twice a second, making an arc of about 20 cm as shown in the  
illustration below.  
HOW TO OPERATE THE SCREW LOCK TYPE CROWN  
If your watch has a screw lock type crown, unscrew it before any crown operation.  
No additional benefit is obtained by swinging the watch with  
greater vigor.  
Always keep the crown locked unless it is necessary for operating the crown.  
[To unscrew the crown]  
When the watch is swung, the oscillating weight in the generating  
system rotates to drive the mechanism. As it rotates, it gives out  
a sound, which is not a malfunction.  
Turn the crown counterclockwise (down-  
ward) to unscrew it. The crown is unlocked  
and can be operated.  
The crown can be pulled out.  
1. Only the hour, minute and 24-  
hour hands move quickly to indi-  
cate the current time which has  
been internally retained in the  
built-in IC.  
2. Then the second hand will follow  
quickly to resume the normal  
movement.  
[To screw the crown in]  
Upon completion of the crown operation,  
screw the crown in completely until it stops  
by turning it clockwise (upward) while gen-  
tly pressing it back into the original position.  
Turn the crown while pressing  
it back in.  
The second hand  
remains still.  
 
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HOW TO SET THE TIME  
Notes  
[Cal. 7D46]  
1. Pull out the crown to the second click.  
The second hand will be stopping on  
the spot.  
If there is any time difference between the factory default time settings and the local time  
in your area, reset the time and calendar before initially using the watch after purchase.  
While the watch is in power save mode, the built-in IC computes the time internally at an  
accuracy of 15 seconds per month which is equivalent to the accuracy of conventional  
quartz watches. Therefore, the time relayed from the built-in IC to the hands by the  
automatic time relay function may include a certain amount of time loss or gain within the  
range of the accuracy of the watch ( 15 seconds per month.) In such a case, reset the time  
as needed before starting to wear the watch.  
When the watch wakes up from power save mode while it is running on extremely low  
electrical power, the second hand starts moving at two-second intervals. (Refer to “ IF THE  
SECOND HAND STARTS MOVING AT TWO-SECOND INTERVALS“ on page 19. )  
If your watch has a screw lock type  
crown, unscrew the crown first, and  
then pull it out to the second click.  
Second click position  
Original position  
To set the second hand exactly, pull  
out the crown to the second click at a  
moment the second hand is pointing to  
the 12 o’clock (“0” second) position.  
[Cal. 7D48]  
[Cal. 7D56]  
2. Turn the crown to set the time.  
Remember to check the 24-hour  
indicator to correctly set AM/PM.  
HOW TO SET THE TIME AND CALENDAR  
To set the time accurately, advance  
the minute hand 4 to 5 minutes ahead  
of the correct time, and then turn it  
back to the exact time.  
Second click position  
Original position  
If there is any time difference between the factory default time settings and  
the local time in your area, reset the time and calendar before initially using  
the watch after purchase.  
In a case that the watch is completely stopped due to a shortage of stored  
electrical energy, recharge the watch until the second hand resumes the  
normal one-second interval movement, and then reset the time and calen-  
dar. (Refer to “IF THE SECOND HAND STARTS MOVING AT TWO-SECOND  
INTERVALS” on page 19.)  
3. Push the crown back into the original  
position. The watch immediately starts  
ticking.  
To set the second hand exactly, push  
the crown back into the original position  
in accordance with a time signal.  
Second click position  
Original position  
 
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HOW TO SET THE PERPETUAL CALENDAR  
CAUTION  
Date, month and year are interlocked on the perpetual calendar. To set the month  
or year, advance the date by turning the crown until the month or year becomes  
adjustable.  
Avoid setting the time or calendar at a time between 23:00 and 1:00.  
If you adjust the time or calendar at a time between 23:00 and 1:00, and the date is  
incorrectly advanced or delayed one day, readjust the watch avoiding the above period  
of time.  
The calendar can be adjusted by turning the crown in either direction upward or downward  
at the first click position.  
While the watch runs in normal operation, the date changes during the time  
between 23:30 and 0:30.  
<Remarks on month, year settings>  
When the date advances to change to “ 1 ,” the month indicator rotates for one  
month to indicate the following month. When the date advances further until the  
month indicator moves forward from December (DEC) to January (JAN), the  
year indicator rotates to show the following year.  
CAUTION  
When setting the calendar in the direction backward, put the date back for one  
or two days behind the date you wish to set, and then advance it to the desired  
date.  
Follow the above procedure for setting the calendar in the direction backward, otherwise  
the date numeral may not appear in the center of the calendar frame. Even though this  
happens, the date display will be aligned correctly the following day.  
When setting the calendar backward to dates in December, the year indicator may not  
be correctly aligned. In that case, set the calendar back to November then forward it to  
the correct date in December.  
 
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1. Each calendar item should be adjusted  
in sequence of year, month and then  
date.  
Year indicator  
[Cal. 7D46]  
CAL. 7D46  
CAL. 7D48  
Pull out the crown to the first click.  
If your watch has a screw lock type crown,  
unscrew the crown first, and then pull it  
out to the first click.  
Crown at the first  
click position  
2. Turn the crown until the year becomes  
adjustable.  
[Cal. 7D48]  
[Cal. 7D56]  
T
E
T
T
E
E
T
E
B
Each calendar item becomes adjustable in  
sequence of date, month and then year, by  
turning the crown.  
The calendar can be adjusted by turning  
the crown in either direction upward or  
downward.  
The year indicator shows the number of  
the year(s) past since the last leap year.  
When setting the year, check whether the  
year you are going to set is a leap year or  
not, if it is not a leap year, check how many  
years have passed (1, 2 or 3) since the last  
leap year.  
B
B
B
CAL. 7D56  
Crown at the first  
click position  
L.Y.  
+2  
+3  
Year Indication  
Number of the years  
passed since  
the last leap year  
+1  
Leap Year  
Three Years  
One year  
Two Years  
2009  
2013  
2011  
2015  
2008  
2012  
2010  
2014  
Year  
2093  
2097  
2095  
2099  
2092  
2096  
2094  
2098  
Crown at the first  
click position  
The design of the year indicator may vary depending on the model.  
 
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3. Turn the crown to rotate the year indicator until the desired indication appears.  
Continue to turn the crown until the month becomes adjustable.  
IF THE SECOND HAND STARTS MOVING AT TWO-  
SECOND INTERVALS  
(ENERGY DEPLETION FOREWARNING FUNCTION)  
When the second hand starts moving at two-second intervals whether it is worn  
or left untouched, the watch may run down within approximately 12 hours.  
When the watch wakes up from power save mode while it is running on extremely  
low electrical power, the second hand starts moving at two-second intervals.  
In such a case, swing the watch from side to side to sufficiently charge the  
rechargeable battery, and then reset the time and calendar.  
Month display  
Example: Position of the month display hand (July)  
HOW TO CHARGE THE WATCH  
1. Swing the watch from side to side rhythmically at a rate of twice a second as  
4. Turn the crown to set the month display hand to indicate the correct month. Then  
continue to turn the crown to set the date.  
shown in the illustration below.  
This movement will recharge the watch to start moving at the normal one-second  
intervals from the two-second interval movement. If you find the second hand  
moving at two-second intervals after swinging the watch, swing it further until the  
second hand moves at the normal one-second intervals.  
Example: Date display of the 26th  
After swinging the watch, check that the second hand is moving  
at one-second intervals.  
5. Upon completion of the calendar adjustment in sequence of year, month and date,  
push the crown back into the original position.  
 
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To charge the rechargeable battery efficiently, swing the watch from side to side rhythmically  
at a rate of twice a second, making an arc of about 20 cm.  
No additional benefit is obtained by swinging the watch more quickly or with greater vigor.  
When the electrical energy stored in the rechargeable battery is completely depleted after  
the watch is left untouched for a long time, the watch requires at least 450 swings to  
generate power to resume the normal operational movement.  
POWER SOURCE (RECHARGEABLE BATTERY)  
This watch requires no periodic battery replacement as it is powered by the exclusive  
rechargeablebattery,whichiscompletelydifferentfromconventionalbatteriesforwatches.  
This exclusive rechargeable battery is an environmentally friendly, clean energy storage  
device.  
2. It is recommended that the watch be swung further until it can reserve enough  
power to run the watch for approximately one day.  
CAUTION  
Never install a silver oxide battery for conventional watches in place of the  
rechargeable battery, which can generate heat that can cause bursting or  
ignition.  
As a guideline, 200 swings will generate the power to run the watch for approxi-  
mately one day.  
POWER RESERVE GUIDELINES FOR THE  
RECHARGEABLE BATTERY  
NOTES ON OVERHAUL  
The watch is a precision device. If the parts run short of oil or get worn out, the watch  
may stop its operation or lose time. We recommend you have the watch overhauled  
periodically to keep it running accurately.  
Wearing the watch continuously for 12 hours will accumulate power to run the  
watch for approximately one and a half additional days.  
As a general guideline, if you wear the watch every day for 12 hours over a period of a week,  
the power to run the watch for approximately ten days will be additionally secured. If the  
watch enters the power save mode, this amount of energy will keep the watch running for  
approximately one month and a half.  
 
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SPECIFICATIONS  
1
Frequency of crystal oscillator .......................... 32,768 Hz (Hz = Hertz … Cycles per second)  
2
Loss/gain (monthly rate) .................................... Less than 15 seconds (worn on the wrist at normal  
temperature range between 5º C and 35º C)  
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4
Operational temperature range ......................... Between –10º C and +60º C  
Driving system  
• Step motor: 2 pieces  
One for the hour and minute hands moving at five-second intervals  
The other for the second hand moving at one-second intervals  
• Piezoelectric motor (For perpetual calendar): 1 piece  
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Rechargeable battery ........................................ Button type, 1 piece  
Continuous operating time  
• Time relay function .................................. Approximately 4 years (if the watch is fully charged)  
• After the second hand starts moving  
at two-second intervals ........................... Approximately 12 hours  
Additional functions........................................... Power save function, Perpetual Calendar, Energy  
depletion forewarning function, Overcharge prevention  
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function  
IC (Integrated Circuit) ........................................ C-MOS-IC, 3 pieces  
Oscillator, frequency divider, drive and charge control, auto-relay control circuit, calendar control  
circuit  
9
*
Generating system ............................................ Miniature AC generator  
The specifications are subject to change without prior notice for product improvements.  
 
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