Citizen B690 User manual
1
32
WPart NamesW
* The illustrations shown in this manual may differ from the actual watch you have purchased.
The description that follows will refer to the figure of the model with a second hand.
<Model with a second hand>
Hour hand
Second hand
Minute hand
Crown
Date
<Model without a second hand>
Hour hand
Minute hand
Crown
Date
Depending on the watch, some models have a second hand and some do not.
English
5
Table of Contents
Your Watch
1. Features ....................................................................................................... 6
2. Operating the Crown ................................................................................. 7
Time and Date Correction
3. Setting the Time and Date ......................................................................... 8
Solar Power
4. Solar Power Function ............................................................................... 10
5. Characteristics of the Solar Powered Watch .......................................... 12
A. Overcharging Prevention Function ........................................................ 13
B. Insufficient Charge Warning Function
(models with a second hand only)....
13
C. Quick Start (models with a second hand only) ...................................... 14
D. Guide to Charging Time......................................................................... 14
E. Handling Your Watch ............................................................................. 18
Precautions ......................................................................................................... 20
6. Specifications ............................................................................................ 26
76
iEco-Drive function
This solar powered Eco-Drive watch is powered by photo energy
converted into electrical energy.
Your Watch
1. Features
2. Operating the Crown
There are two models available for the crown: normal and screw lock.
In the case of normal crown watch, the crown has simply to be pulled out.
<Operating the screw lock crown>
Turn to the left
1. Turn the crown to the left.
2. When the screw lock is released, the
crown pops out a little and stops in the
normal position.
3. After using the crown, push it in gently
while turning it to the right to lock it.
98
The date and time can be corrected by changing the position of the crown. Correct
by turning the crown while in the given mode.
* Nothing happens if you turn the crown when it is in the normal position.
Time and Date Correction
3. Setting the Time and Date
<Correcting the time>
1. Pull out the crown to position 2.
(The second hand stops at this time for models with a second hand.)
2. Turn the crown to set the time.
* When the date changes, it is 0:00 a.m. (midnight). Take care to observe
whether it is a.m. or p.m.
3. Return the crown to the normal position to complete the correction.
(The second hand starts moving at this time for models with a second hand.)
* For models with a second hand, refer to a time report to adjust the seconds.
<Correcting the date>
1. Pull out the crown to position 1.
(The second hand continues moving at this time for models with a second hand.)
2. Turn the crown to the left to change the date.
* Nothing happens if the crown is turned to the right.
3. Return the crown to the normal position to complete the correction.
Date correction position
(Crown in position 1)
Time correction position
(Crown in position 2)
This watch uses a secondary battery to store electrical energy. When the watch is
fully charged, it will maintain its accuracy for about 9 months.
<Ensuring best operation of the watch>
To receive the greatest pleasure from your watch, always store it in a
sunlit location.
jPlacing the watch near a window where its face can
receive sunlight or near another source of light when
you are not wearing it will ensure that the watch is
regularly charged, allowing it to maintain its accuracy.
10
Solar Power
4. Solar Power Function
11
jWearing clothes with long sleeves makes it difficult
for the watch to get the necessary light, resulting in
insufficient charging.
It is recommended to charge your watch by
exposing to direct sunlight for a long time once a
month.
[NOTE]
Do not charge on surfaces that can easily
become hot, such as a car dashboard.
1312
5. Characteristics of the Solar Powered Watch
When the watch is insufficiently charged, the indication will be changed as follows:
<When the watch stopped due to an insufficient charging>
Charge the watch sufficiently, as indicated in “Guide to Charging Time”.
At this time, be sure to charge the watch with sunlight rather than under fluorescent
light.
[Normal indication]
The watch will stop
due to an insufficient
charging.
[Operation stops]
The second hand
starts moving at 2-
second intervals.
[Insufficient charge warning]
(Models with a second hand only)
The watch has been insufficiently
charged because the watch face
has not received sufficient light.
The insufficient charge
warning (a 2-second interval
movement) continues for
more than 7 days.
The watch has been insufficiently
charged because the watch face
has not received sufficient light.
A. Overcharging Prevention Function
No matter how much the watch is charged, it will not affect the secondary battery,
timekeeping, functions or performance of the watch. When the secondary battery
becomes fully charged by exposing the watch face to light, the overcharging
prevention function is automatically activated to prevent the battery from being
charged further.
B. Insufficient Charge Warning Function
(models with a second hand only)
The second hand’s movement changes from 1-second
intervals to 2-second intervals to show that the watch
is insufficiently charged.
The watch will stop due to insufficient charging
about 7 days after starting the 2-second interval
movement if kept in a place with no light.
2-second
interval
movement
1514
C. Quick Start (models with a second hand only)
If the watch stops due to insufficient charge, the second hand will start moving at
2-second intervals if the watch face is exposed to light (approx. 500 lx) for approx.
10 seconds. (The time required for the hand to begin moving varies depending on
the model.) Note, however, that the battery is not yet fully charged.
D. Guide to Charging Time
The charging time varies according to the model (including the color of the watch
face). The following data should only be used as a guideline.
* The charging time is based on continuous exposure.
For a 1-day movement charging time......
The charging time to run the watch for one day with normal movement.
Time for full charging......
The time for full charging after the watch has stopped due to an insufficient
charging.
Illuminance
(lx) Environment
Charging time (approximate)
Time from
stopping to
resuming the
1-second
interval
movement
Time for full
charging
3,000 20 cm (8 in.) beneath a 30 W
florescent light 40 minutes 35 hours --------
10,000 Cloudy sky 12 minutes 9.5 hours 70 hours
100,000 Under direct midsummer
sunlight 2 minutes 1 hour 10 hours
For a 1-day
movement
charging time
<Model with a second hand>
1716
Illuminance
(lx) Environment
Charging time (approximate)
Time from
stopping to
resuming the
1-second
interval
movement
Time for full
charging
3,000 20 cm (8 in.) beneath a 30 W
florescent light 40 minutes 14 hours --------
10,000 Cloudy sky 12 minutes 4.5 hours 60 hours
100,000 Under direct midsummer
sunlight 2 minutes 25 minutes 11 hours
For a 1-day
movement
charging time
<Model without a second hand>
[NOTE]
A fully charged battery will run the watch for about 9 months without further
charging.
If the watch stops due to insufficient charge, take care to charge it daily.
Furthermore, it is recommended to charge your watch by exposing to direct sunlight
for a long time once a month.
1918
E. Handling Your Watch
WARNING Handling the secondary battery
jDo not remove the secondary battery from the watch yourself, unless
unavoidable.
If you must remove the battery, store it out of reach of children to avoid
accidental ingestion. If the secondary battery is ingested, consult a doctor
immediately.
jDo not throw away with regular trash.
Doing so could cause a fire or environmental damage. Follow the collection
procedures as specified by your local authority.
WARNING
Do not use anything other than the specified secondary battery
jThe watch will not operate if incorrect battery types are inserted.
Never use a regular silver battery. The battery could overcharge during the
charging process and burst, causing damage to the watch or injuries to the
wearer.
CAUTION Charging precautions
jDo not charge the watch in a high-temperature environment (about 60°C/140°F
or more).
Overheating while charging can cause the watch exterior to become discolored,
the watch to deform or the movement to be damaged.
Example:
• Charging close to incandescent lighting, halogen lamps, or other lighting
sources that easily become hot.
• Charging on surfaces that can easily become hot, such as a car dashboard.
jWhen charging with incandescent lighting, halogen lamps, or other lighting
sources that easily become hot, place the watch at least 50 cm (20 in.) away
from the source to avoid overheating.
Table of contents
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