CITIZEN QUARTZ
Eco-Drive
Model No. BJ1XXX
Cal. No. A16
Model No. EP2XXX
Cal. No. A27
•INSTRUCTION MANUAL
CTZ-B6902
A. BEFORE USING
This watch is powered not by an ordinary battery, but by converting photo energy to electrical energy.
Before using, expose to light and make sure the watch is sufficiently charged.
See “F. TIME FOR CHARGING” for charging time reference.
A secondary battery is used in this watch to store electrical energy. This secondary battery is a clean battery which doesn’t use any toxic substances such as mercury. Once fully charged, the watch will continue to run for about 16 months without further charging.
To use this watch comfortably, make sure that the watch is always recharged before it stops.
There is no concern for overcharging this watch (Overcharging Prevention Function is included).
We recommend that you recharge the watch everyday.
B. SETTING THE TIME AND CALENDAR 1. Models without date supply
Setting the time
1.Stop the second hand at the 0 second position 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.
2. Models with date displaySetting the time
1.Stop the second hand at 0 second position by pulling the crown out to the 2nd click.
2.Turn the crown to the time.
3.After setting the time firmly push the crown back to its normal position.
Setting the calendar
Adjusting the date
1.Pull the crown out to the first click.
2.Set the desired date by turning the crown.
•Do not adjust the date when the watch display is reading between 9:00pm and 1:00am, otherwise
the date might not change on the following day.
3.After you have set the calendar, be sure to firmly return the crown to its normal position.
C. FUNCTIONS OF SOLAR POWERED WATCH
If the charge becomes insufficient, a warning function will operate and the display changes, as below.
C. FUNCTIONS OF SOLAR POWERED WATCH
■Insufficient Charge Warning Function The second hand changes to a
two second interval movement to indicate insufficient charging.
Even in such a case, the watch keeps correct time, but about 20 days after the two second movement begins, the watch will stop. After exposing the watch to light, recharging takes place and the
watch returns to one second interval movement.
■Quick Start Function
The watch will stop if it is completely discharged.
It will begin to operate soon after it is exposed to light. (However, the time to start may vary according to the brightness of the light.)
■Time Setting Warning Function
If the watch stops, subsequent exposure to light allows the Quick Start Function to start again, and the second hand moves with a hitch to indicate that the time is incorrect.
■Overcharge Prevention Function You can recharge without worry.
Once the secondary battery is fully recharged, the overcharging prevention feature comes into operation and prevents over-recharging.
D. CARE AND HANDLING DURING CHARGING ■ Notes on use
Take care to charge your watch during use.
Please note that if you wear long sleeves, the watch can easily become insufficiently charged because it is hidden and not exposed to light.
•When you take the watch off, place it in as bright a place as possible, and it will always continue to run properly.
■ Notes on recharging
•Avoid recharging at high temperatures (over about 60˚C/140˚F), otherwise the watch will be damaged during recharging.
(eg) Charging the watch near a light source that easily becomes hot, such as an incandescent lamp or halogen lamp.
Charging in a place that easily becomes hot, such as a dashboard.
When you charge the watch by an incandescent lamp, take a distance about 50cm (20in.) from the light source to prevent extremely high temperature,
E. REPLACING THE SECONDARY BATTERY Unlike ordinary batteries, the secondary battery used in this watch doesn’t have to be periodically replaced due to repeated charging and discharging.
CAUTION
Never use another battery different from the secondary battery used in this watch.
The watch structure is so designed that a different kind of battery other than that specified cannot be used to operate it. In case a different kind of battery such as a silver battery is used by some chance, there is a danger that it will be overcharged to burst, causing damage to the watch and even to the human body.
F. TIME REQUIRED FOR CHARGING
The time required for charging may vary according to the caliber number, design (colour of the dial, etc) and operating environment. The following table will serve as a rough reference.
*The recharging time is the time when the watch is continuously exposed to radiation.
Please check the caliber number on the caseback
Full recharging time (Empty to full)...
The time for fully recharge from stopped.
One day usage...
The time required for the watch to run for one day
with one second interval movement.
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Cal No. A160 |
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Illuminance |
Environment |
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Time required |
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(lux) |
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From the stop state to |
One day usage |
Empty to full |
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one second movement |
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500 |
Inside and ordinary |
12 days |
2 hours |
55 days |
office |
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1000 |
60-70cm under a |
6 days |
1 hour |
27 days |
fluorescent light |
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3000 |
20cm under a |
46 hours |
20 minutes |
9 days |
fluorescent light 30W |
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10000 |
Exterior, cloudy |
14 hours |
6 minutes |
64 hours |
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100000 |
Exterior, summer, |
4 hours 30 |
2 minutes |
22 hours |
sunny |
minutes |
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Cal No. A270 |
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Illuminance |
Environment |
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Time required |
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(lux) |
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From the stop state to |
One day usage |
Empty to full |
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one second movement |
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500 |
Inside and ordinary |
19 days |
3 hours |
85 days |
office |
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1000 |
60-70cm under a |
9 days |
1.5 hour |
41 days |
fluorescent light 30W |
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3000 |
20cm under a |
70 hours |
30 minutes |
14 days |
fluorescent light 30W |
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10000 |
Exterior, cloudy |
21 hours |
9 minutes |
96 hours |
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100000 |
Exterior, summer, |
7 hours |
3 minutes |
32 hours |
sunny |
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