Citizen D40 Series Manuel d'utilisation
1. Main Features
This digital quartz watch uses a color light emitting diode (LED) that offers high
luminance, outstanding reliability and a long service life. In addition to time and
calendar functions, this watch is equipped with a graphic display that changes
according to the time as well as a low battery warning function that informs the
wearer that it is time to replace the battery when the battery has nearly expired.
2. Explanation of Displays and Buttons
The locations of buttons may very depending on the model, Please read these
instructions after first checking the positions of the buttons on your watch.
NOTE: The explanation of functions, procedures and so forth are based on
model type A
M
3. Time, Calendar and Graphic Display Methods
Time and Calendar Displays
1) This watch displays “hours”, “minutes”, and the “TME” mark for about 3
seconds when button M is pressed to change the time display when the
display is not shown
2) When button M is pressed while the time is displayed, the wach changes
to the calendar display and displays “month, “date”, and the “CAL” mark
for about 3 seconds.
3) The display goes out when button M is pressed during the calendar
display
4) If none of the buttons are pressed, the watch automatically returns to the
graphic display (shown for about 3 seconds) after the time or calendar is
displayed.
(The graphic display is only displayed on the hour for about 3 hours after
the Time or Calendar is displayed.)
* “SIG (red)” flashes every 10 seconds for about 3 hours after the last time
a button was pressed
Recall of Graphic Display by Switching Procedure
1) when button B is pressed when there is no display, the watch changes to
the graphic display (displayed for about 3 seconds). Furthermore, the
contents of the graphic display may vary depending on the time
2) When button B is pressed during the graphic display, the watch display is
no longer shown.
No display
Changes automatically
after display
Graphic display
Graphic display
Time display Calendar display
4. Setting the Time and Calendar
Please note: An all reset is required if the watch displays a malfunction or
after a battery change. Please refer to the All Reset procedure, before setting
the time and calendar
1) When button A is pressed for at least 2 seconds during the time or
calendar display, the watch changes to the seconds correction mode
(seconds flash).
2) Set the seconds by pressing button M.
* When button M is pressed when the seconds are between 30 and 59
seconds to reset the seconds to zero, the minutes are advanced by one
minute
3) Each time button B is pressed in the correction mode, the area of the
display that can be set changes according to the sequences shown below.
Press button B until the area of the display desired to be set flashes.
4) Press button M to set the flashing area of the display to the desired value.
*Pressing button M continiously causes the display to advance rapidly.
5. All Reset Procedure
Perform the all-reset procedure described below after replacing the battery or
when the watch does not operate properly or the display has become
abnormal (no display or display remains on without going out) as a result of
being subjected to strong impact.
1. Press buttons A, B and M simultaneously for at least 4 seconds.
*All segments of the display will be lit during the time until the next
button is pressed after the buttons are released. (If another button
is not pressed after the buttons are released, all segments will be lit
for about 60 seconds.)
*When any button is pressed when all display segments are lit, the
watch will display the graphic display after displaying 12:00 (AM)
indicating that the all- reset procedure has been completed.
2. After the all-reset procedure is completed, make sure to reset each
mode to the correct setting before using the watch.
Time Display (TME) Calendar Display (CAL)
Seconds Minutes Hours
Year Date Month
6. Low Battery Warning Feature
*When the battery voltage becomes low, the "SEC (orange)" mark will flash
indicating that the battery will wear out soon. Please replace the battery
promptly when this occurs. Have the battery replaced at the store where the
watch was purchased or at our closest service center.
(1)When the low battery warning feature has been activated during the time
display, calendar display or graphic display, the watch will display the low
battery warning and the "SEC (orange)" mark will flash for about 3 seconds.
The display will go out automatically after flashing.
(2)When the low battery warning feature has been activated during the time
or calendar correction mode, the watch will display the low battery warning
and the "SEC (orange)" mark will flash for about 3 seconds. The display will
go out automatically after flashing.
Estimated Battery Life
Troubleshooting
When the watch is subjected to a temperature lower than the temperature at
which the watch is normally worn such as when removed from the wrist or when
worn over clothing, battery voltage may temporarily decrease causing the low
battery warning feature (SEC (orange) mark) to flash. When this happens, simply
return the watch to normal use to raise the temperature such as by wearing it
directly on the wrist.
If the SEC (orange) mark continues to flash even though the watch has warmed
up, please replace the battery promptly.
Any Display Display of
“Sec” mar
k
No Display
Detection of low
battery voltage
Display changes
automatically
N
o. of times used per day Battery life
Displayed 3 times Approx. 2 years
Displayed 6 times Approx. 1 year
Displayed 10 times Approx. 8 months
Displayed 30 times Approx. 3 months
*The display is displayed for about 6 seconds
each time it is displayed (including graphic
display).
7. Specifications
1. Caliber No.: D40*
2. Type: LED digital quartz watch
3. Accuracy: +/- 30 seconds per month on average (when worn at normal operating
temperatures of +5 degrees centigrade to +35 degrees centigrade
4. Operating Temperature Range: 0 degrees centigrade to +50 degrees centigrade
5. Basic functions:
* Time: Hours (12-hour clock), minutes, seconds (displayed only during
correction)
*Calendar: Month, date, year (displayed only during correction)
6. Additional functions: Low battery warning feature
7. Battery: Battery no. 280-205, battery code: CR2025
8. Battery life: Approximately 1 year (in the case of illuminating the display 6 times
per day)
[The display is displayed for about 6 seconds each time it is displayed (including
graphic display).]
* Specifications are subject to change without notice.
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