CITIZEN BM8454-93A User Manual
CONTENTS
A. BEFORE USING..........................................................................................2
B. SETTING THE TIME AND CALENDAR......................................................3
C. FUNCTIONS OF SOLAR POWERED WATCH ..........................................6
Insufficient Charge Warning Function..........................................................7
Quick Start Function ....................................................................................7
Overcharge Prevention Function .................................................................7
D. CARE AND HANDLING DURING CHARGING ..........................................8
E. ABOUT THE RECHARGEABLE CELL ......................................................9
F. TIME REQUIRED FOR CHARGING .........................................................10
G. IN THESE CASES .....................................................................................12
H. PRECAUTIONS.........................................................................................14
I. SPECIFICATIONS.....................................................................................20
1
English
A. BEFORE USING
This watch is not powered by a conventional battery, but is powered by
converting light to electrical energy.
Once fully charged, the watch will continue to run for approximately 6 months
without additional charging. We do recommend exposing your watch to light
every day to ensure optimum performance. Always be sure to recharge the
watch before it stops.
Your watch features an Overcharge Prevention Function so there is no need to
worry about overcharging your watch.
A special energy storage cell is used to store electrical energy. This special cell
does not
require replacement and is a clean energy unit that does not use any
toxic substances.
2
Before using, be sure to fully charge your watch by exposing it to light.
(See “F. TIME REQUIRED FOR CHARGING”, for charge time reference)
B. SETTING THE TIME AND CALENDAR
Setting the time
1. Stop the second hand by pulling out the crown.
2. Turn the crown to set the time.
3. After setting the time, firmly push the crown back into its normal position.
3
Time-setting position
Crown
Solar cell
Normal position
[1] Three-hand models without calendar display
* If your watch has a screw-type crown, lift up the crown to loosen it before
operation. Be sure to press the crown down firmly after operation.
7
7
SUN
4
Time
setting
position
Time
setting
position
Calendar setting
position
Crown
Date
Solar cell
Normal position
[2] Models with calendar (date and weekday) display
* If your watch has a screw-type crown, lift up the crown to loosen it before
operation. Be sure to press the crown down firmly after operation.
[Date display models]
[Date, day of the week
display models]
Solar cell
Crown
Date, day of the week
Normal position
Calendar setting
position
The position of the calendar may differ depending on models.
Setting the time
1. Stop the second hand by pulling the crown out to the 2nd click (time setting
position).
2. Turn the crown to set the time.
3. The watch will start after the crown is firmly pushed back into its normal
position.
Setting the calendar
1. Pull the crown out to the 1st click (calendar setting position).
2. Set the desired date by turning the crown counterclockwise.
3. Set the desired day of the week by turning the crown clockwise.
• In the case of date display models, turning the crown clockwise will result in
the loose play of the crown.
4. After you have set the calendar, be sure to press the crown back to its
normal position.
• Do not adjust the calendar when the watch is reading as below. Otherwise
the calendar may not change correctly.
* Date display models ..... between 9:00 pm and 1:00 am
* Date, day of the week display models ..... between 9:00 pm and 4:00 am
5
C. FUNCTIONS OF SOLAR POWERED WATCH
If the charge becomes insufficient, a warning function will operate and the
display changes, as below.
6
Normal time
display
Stop
Insufficient charge
warning display
One second
interval movement
Two second
interval movement
If charged
sufficiently
If insufficiently
charged
When the watch is exposed to light, the Quick Start Function will begin operating
and the second hand will start moving. The correct time can be set once the watch
is fully charged.
If insufficient charge continues
If insufficiently charged and time is set
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