Citizen E761 Operating manual

SETTING INSTRUCTIONS FOR
PERPETUAL CALENDAR MOVEMENT CALIBER E760, E761, E76x
Contents
1. FEATURES
2. BEFORE USING
3. SPECIFICATIONS
4. SETTING THE TIME AND DATE
5. FUNCTIONS UNIQUE TO SOLAR-POWERED WATCHES
6. GENERAL REFERENCE FOR CHARGING TIMES
7. NOTES REGARDING USE OF THIS WATCHES
8. ABOUT THE ECO DRIVE RECHARGEABLE BATTERY
9. ALL-RESET
10. REFERENCE POSITION ALIGNMENT
11. CARE OF YOUR TIMEPIECE
(click on a topic)

1.FEATURES
This watch is a solar-powered watch that contains a solar cell in its face that
drives the watch by converting light energy into electrical energy. It is
equipped with numerous functions including a perpetual calendar that changes
the year, month and day automatically through February 28, 2100, including leap
years, a time difference correction function that makes it possible to easily
change the time difference without stopping the watch, and a power save
function that reduces current consumption when the solar cell is not exposed to
light.
2. BEFORE USING
This watch is a solar-powered watch. Make sure to charge the watch prior to use
by adequately exposing it to light. If the watch should happen to stop as a
result of being insufficiently charged, charge by exposing the watch to intense
light such as direct sunlight.
This watch is a solar powered watch. Be sure to fully charge it prior to
use and setting
An Eco Drive rechargeable battery (manganese titanium) is used in this watch to
store electrical energy. This Eco Drive Rechargeable battery is a clean energy
battery that does not contain mercury or other toxic substances. Once fully
charged, the watch circuit will continue to keep time for about 2 years without
additional charging (when the power save function is operating).
<Proper Use of this Watch>
To use this watch comfortably, make sure to recharge it before it stops running
completely. There is no risk of overcharging no matter how much the watch is
charged (Overcharging Prevention Function). It is recommended that the watch be
recharged everyday.
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3. SPECIFICATIONS
In the case the crown is of the screw-lock type, operate the crown after
first loosening the screw and then make sure to securely retighten the
screw after the crown has been operated.
Movement Caliber E760
Accuracy Within +/- 15 seconds per month on average. (When
worn at normal temperatures of 5oC to 35 o C / 41 o F
to 95 o F
Operating Temperature -10oC to 60 o C / 14 o F to 140 o F
Display function
Time
Calendar
Hours, minutes seconds (the second hand moves every
second while the hour and minute hand move every 15
seconds.)
Date Display (With rapid correction function)
Month and years elapsed since the most recent leap
year are displayed by the second hand (only
displayed when correcting the date)
Additional Features
• Power Save 1 Feature
• Power Save 2 Feature
• Time difference correction function (forward
and backward in 1 hour units
• Insufficient recharge warning
• Time setting warning function
• Overcharging prevention feature
Eco Drive Rechargeable
Battery
Eco Drive Manganese Titanium Rechargeable Battery.
(Not user replaceable.)
Continuous operating
time
From a full charge to stop:
Approximately 5 years (while in operation of power
save 2 feature)
2 Second interval low charge warning to stop:
Approximately 2 Days
• Note: specifications subject to change without notice.
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4. SETTING THE TIME AND DATE
If the watch is provided with a cove open, the cover to set the time and
date, and close the cover once the time or date has been set.
Seconds (displays number
of years elapsed since the
most recent leap year and
month during date
correction
(0) Normal position (hours
and day/correction if time
difference
(1) Date correction position
(correction of number of years
elapsed since the most recent
leap year and month
(2) Time setting position
(correction of seconds and
minutes
Setting the Time
1. When the crown is pulled out to the second click (time setting position), the
second hand rapicly advances to the 0 seconds position and stops.
2. Turn the crown and set the time.
When the crown is turned to the right, the hour and minute hands move forward
(clockwise rotation).
1. When turned to the left, the hour and minute hands move backward by one
minute (counter-clockwise rotation).
• When the crown is turned continuously, the hands advance rapidly. Turn the
crown to either the left or right to stop the hands from advancing
rapidly.
NOTE 1: When correction in the forward direction, the date changes when the
hour and minutes hands indicate 12:00 AM. However, when the date is changed
7when the hands are in the “rapid advance” mode, the hour and minute hands
“pause” at the 12:00 am and then resume rapid advancement.
NOTE 2: When correcting in the backward direction, the date does not change
even if the hour and minute hands pass 12:00 AM
3. Return the crown to the normal position in synchronization with a telephone
time signal or other time service.
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Setting the Date
This watch is provided with a perpetual calendar function. Once it is set,
the year, month and date change automatically, including leap years.
<How to Read Month and Year
How to read the month:
January: Between 1:00 and 2:00
February: Between 2:00 and 3:00
:
:
December: Between 12:00 and 1:00
How to read the year:
Leap year: First mark in each month zone
1 year after most recent leap year:
Second mark in each month zone
2 years after the most recent leap year:
Third mark in each month zone
3 years after the most recent leap year:
Fourth mark in each month zone
<Quick Reference Table for Number of
Years Since Most Recent Leap Year>
1. When the crown is pulled out to the first click (calendar correction
position), the second hand moves to the year and month position stored in
memory and then stops
2. Turn the crown and set the date
a. Turn the crown to the right to set the second hand to the position
corresponding to the year (number of years elapsed since the most
recent leap year) and month. Turning the crown continuously causes the
second hand to advance rapidly.
Examples
! In the case of December in a leap year: Align the second hand at ‘0’
seconds.
! In the case of April in a year that is three years after the most
recent leap year: Align the second had as 23 seconds (between 4:00
and 5:00)
B. The date is advanced by one day if the crown is turned to the left.
Turning the crown continuously causes the date to be advanced
continuously. Turn the crown to either the left or right to stop the
date from rapidly advancing.
3. Always make sure to return the crown to the normal position next to the case
after setting the date. The second hand advances to the current second and
the hands begin to move normally.
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<When Setting the Date by Continuously Turning the Crown>
The date can be set easily by stopping advancing the date rapidly two to three
days before the correct date and then advancing the date one day at a time.
<When the Date has been set to a date that does not exist>
The date automatically changes to the first day of the following month when the
crown is returned to the normal position from the date correction state.
Examples:
• Normal Years:
March 1 when the date has been set to February 29.30 or 31
October 1 when the date has been set to September 31
• Leap Years
March 1 when the date has been set to February 30 or 31
October 1 when the date has been set to September 31
Correcting the Time Difference
When button (A) is pressed and the crown is turned continuously, time difference
can be corrected in 1 hour increments. Time difference cannot be corrected
continuously.
The time difference can be corrected for 30 seconds after button (A) has been
pressed or for 30 seconds after time difference correction (after the hands
finish moving)
1. Put the crown in the normal position.
2. When button A is pressed, the second hand performs a demonstration movement
(forward rotation -> backward rotation -> forward rotation).
3. Correct the time difference by turning the crown to the right or left.
1. When the crown is turned to the right, the hour hand moves forward by one
hour (clockwise rotation).
2. When the crown is turned to the left, the hour hand moves backward (counter-
clockwise-rotation) by one hour.
Note 1: If the time difference is corrected in the forward direction, the date
after the hands are finished moving is corrected by +1 day when the hour and
minute hands pass 12:00 AM. Pay attention to AM and PM when correcting the
time difference.
Note 2: When returning the time difference to its original setting, return the
hour hand in the opposite direction in which it was corrected. If the time
difference is corrected in the backward direction, the date after the hands
are finished moving is corrected by –1 day when the hour and minute hands pass
12:00 AM. This takes about two minutes, however, since the date is corrected
in the forward direction.
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Example:
Setting the time difference of London (local time) when the time in Tokyo (home
time) is 10:OO AM:
The time difference between Tokyo and London is -9 hours. Since it is 1:00 AM in
London when it is 10:00 AM in Tokyo, in the case of correcting the time
difference at this time:
1. Press button A.
2. Turn the crown to the left to turn the hands backward (counter-clockwise) by 9
hours.
Note:
If the crown is turned to the right to move the hands clockwise to set the
time to 1:00, the time will be 1:OOPM and the calendar function will not
operate correctly, preventing the date from changing at the proper time.
Case of Correcting Time Difference by -9 Hours
<Proper Correction Procedure> <Improper Correction Procedure>
Direction of time difference
correction
Direction of returning time difference
correction
Direction of improper time difference
correction
The time difference cannot be corrected when the second hand is moving at two-
second intervals indicating that the watch is insufficiently charged. Correct the
time difference after charging the watch by exposing it to light so that the
second hand returns to one- second interval movement.
Reference: Time Differences of Major World Cities Based on UTC
• Cities (regions) in which daylight savings time is used are indicated
with a 0, while those in which it is not are indicated with an X.
• The time difference and use of daylight savings time of each city are
subject to change by the particular country.
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5. FUNCTIONS UNIQUE TO SOLAR-POWERED WATCHES
When the watch becomes insufficiently charged, the following warning functions
are activated to inform the wearer that the watch is insufficiently charged.
Note 1
Irregular two-second-interval movement will continue if the time is not reset
Note 2
Check the date since it also may not be correct
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Insufficient Charging Warning Function
The second hand moves at two-second
intervals to indicate that the watch is
insufficiently charged. Although the watch
will continue to operate normally at this
time as well, it will stop after about 2
days have elapsed since the start of two-
second-interval movement. Expose the watch
to light to return the second hand to one-
second interval movement.
Overcharging Prevention Function
The overcharging prevention function is activated when the Eco Drive
Rechargeable battery is fully charged so that it is not charged further.
When the watch is again exposed to light
after stopping, although the second hand
begins to move, since the time is incorrect,
the second hand moves irregularly at two-
second intervals to indicate that the time
is incorrect. Reset the time after the watch
has been sufficiently charged. The second
hand will continue to move irregularly at
two-second intervals unless the time is
reset.
Time Setting Warning Function
Power Save 1
When power is no longer generated as a result of light not shining on the
solar cell continuously the second hand stops and the watch enters Power Save
1 to reduce power consumption of the rechargeable battery. The minute and hour
hands continue to keep time even though the second hand is stopped.
Furthermore, operation of the calendar is linked with the movement of the hour
and minute hands
<Power Save 2>
When the Power Save 1 state continues for about 3 days, the watch
automatically switches to the Power Save 2 state and movement of the hour and
minute hands as well as the calendar operation stop to further reduce power
consumption of the rechargeable battery.
Note: The power save function is not activated even when power is not
generated as a result of light not shining on the solar cell during the
time the Eco Drive Rechargeable battery is fully charged and the
overcharging prevention function is activated.
Canceling Power Save
The power save function is canceled when the solar cell is exposed to light and
power generation is resumed. The of the hands advance rapidly to the current
time and begin moving.
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6. GENERAL REFERENCE FOR CHARGING TIMES
The time required for recharging varies according to the model of the watch
(color of the dial, etc.). The following times are shown below to serve only as a
reference. Recharging time refers to the amount of time the watch is continuously
exposed to light.
Running Time
At Full Charge Low Charge Warning
Quick
Start Feature
5 Years 2 Days No
Charge Rates from Indoor Light Source
Indoors, Office
(500 lux) Fluorescent at 6" Distance Incandescent at 20" Distance
(3000 lux)
One Day
Use One Second Step Full Charge One Day Use One Second Step Full Charge
2 Hours 27 Hours 22Days 19 Minutes 10 Hours 82 hours
Charge Rates from Outdoor Light Source
Outdoors Cloudy
(10,000 lux) Outdoors Bright Sun (100,000 lux)
One Day
Use One Second Step Full Charge One Day Use One Second Step Full Charge
6 Minutes 2 hours 26 Hours 1.5 Minutes 1 Hour 7 Hours
7.NOTES REGARDING USE OF THIS WATCH
<Try to keep the watch charged at all times. >
Please note that if you frequently wear long sleeves, the watch can easily become
insufficiently charged as a result of it being concealed and unable to be exposed
to light.
When you take the watch off, try to place it in as bright a location as possible
to ensure that it always keeps the correct time.
CAUTION - Charging Precautions -
Avoid recharging at high temperatures (over about 60'C/140'F) since this may
result in dam- age to the watch during recharging.
Examples:
• Charging the watch in close proximity to an incandescent lamp, halogen lamp
or other light source that can easily reach high temperatures.
• Charging the watch in a location that reaches high temperatures such as on
a car dashboard.
• When charging the watch with an incandescent lamp, always make sure the
watch is at least 50 cm (20 in.) away from the lamp so that it does not
reach excessively high temperatures during charging.
8. REPLACING THE ECO DRIVE RECHARGEABLE BATTERY
The rechargeable battery used in this watch does not have to be periodically
replaced in the manner of ordinary batteries as it can be charged and
discharged repeatedly. Note: This rechargeable battery is not a user
replaceable item
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