Citizen | B876 | Specifications | Citizen B876 Specifications

Setting Instructions for Movement Caliber B876
Contents (click on a topic)
1.
2.
3.
4.
OUTLINE
SPECIFICATIONS
USE OF THIS WATCH
A.
ABOUT SOLAR POWERED WATCHES
B.
SETTING THE TIME AND DATE
C.
USING THE DUAL TIME FEATURE
D.
FUNCTIONS OF THE SOLAR POWERED WATCH
E.
TIME REQUIRED FOR RECHARGING
F.
LOW CHARGE AND TIME SET WARNINGS
G.
NOTES ON RECHARGING
H.
NOTES ON THE ECO DRIVE RECHARGEABLE POWER CELL
I.
USING THE ROTATING BEZEL TO DETERMINE TIME DIFFERENCES
CARE OF YOUR WATCH
Return to Table of Contents
1. OUTLINE
This is a solar powered watch in which a solar panel is used to convert light to
electrical energy. The dual time function of this watch indicates two different
times by correcting the hour hand independently of the minute hand.
2. SPECIFICATIONS
Movement Caliber Number
B876
Type
Analog Solar Powered Watch
Accuracy
+/15 seconds/
month
At normal operating temp.
o
o
o
o
(5 c –35 c) (41 f –95 f)
Operation Temperature Range
(-10oc –60oc) (14o f –140o f)
Display Functions
Time: Hours (local time hours), Minutes,
Seconds, 24-hour indicator
Calendar: Date
Additional Functions
x
x
x
Insufficient charge warning
Quick Start from low power state
Time Setting Warning
x
From Full Charge to Stop:
Approx. 6 months
From two Second Interval movement to stop:
Approximately 3 days
Continuous Operating Time
x
Power Cell
Eco-Drive Rechargeable Power Cell (not user
replaceable.)
Life of Power Cell
Expected life is approximately 18-20 years.
*note: specifications are subject to change without notice.
Return to Table of Contents
Return to Table of Contents
3. USE OF THIS WATCH
A) About Solar Power
This watch does not use a conventional battery, but an Eco Drive
rechargeable energy cell. It is powered by light that is converted to
electricity through a solar panel under the translucent dial.
The Eco Drive rechargeable power cell is a clean energy unit that does not
use any toxic substances. Once fully charged, the watch will continue to run
for about 6 months without further charging. However, it is recommended that
the watch be exposed to light every day to ensure that maximum performance
is achieved.
There is no need to be concerned about over-charging as there is a built in
Over-Charge prevention feature.
B) Setting the Time and Date
If the crown is of the screw down type, be sure to unscrew the crown from
the case before setting the time. After setting the time, be sure to screw
the crown back to the case.
<Setting the Time>
1.
Pull the crown out to the time
correction position, two clicks out (The
second hand stops when the crown is pulled
out to this position.
2.
Turn the crown to set then 24-hour hand
and the minute hand to the current time in
your location. At this time, the movement of
the hour hand is linked with the movement of
the 24-hour hand.
3.
Push the crown back in to the normal
position. (the second hand begins normal
movement once the crown is pushed in)
4. Pull the crown out to the date correction position (1 “click” out)
5. Turn the crown to the right (clockwise) and set the hour hand to the current
local time. Be sure to pay special attention to AM and PM as the location of
the hour hand where the date changes is approximately 12:00 AM Midnight.
6. Return the crown to the normal position next to the case.
<Setting the Date>
1. Pull the crown out to the date correction position (1-click out)
2. Turn the crown to the left (counter-clockwise) and set the date.
3. Securely return the crown to the normal position
Since the date is linked to the movement of the hour hand, the date starts
to change when the hour hand approaches 12:00 AM Midnight. Please note this
when using the dual time feature.
DO NOT attempt to change or set the date when the hour hand is between 9:00
pm and 1:00 am. Setting the calendar when the hour hand is in this position
may cause damage to the movement, and may result in improper operation of
the date feature.
Return to Table of Contents
Return to Table of Contents
C. Using the Dual Time Feature
This watch allows the hour hand to be set independently of the minute hand,
without stopping the watch. It ca be used as a dual time watch by setting the
24-hour hand and hour hand to different times. After correcting the time, the
hour hand is used to indicate the “local time hours”.
<Correcting the Local Time Hours>
1.
Pull the crown out to the local time
correction position (1-click out)
2.
Turn the crown to the right (clockwise) and
set the hour hand to the desired time. The hour
hand can be adjusted in increments of 1 hour in
the clockwise direction only. Be careful to pay
attention to the AM and PM time as the date could
be changed when passing 12:00AM midnight
NOTE: The hour hand cannot be corrected in the
Counter-Clockwise direction. As the calendar is
linked by gears to the operation of the hour hand,
it may be necessary to correct the calendar after
correcting the hour hand, depending on which hour
the hour hand was set to.
3. Securely return the crown to the normal position
D. Functions of the solar powered watch
If the charge becomes insufficient to power the watch, a warning function will
operate and the display changes as indicated below:
Return to Table of Contents
Return to Table of Contents
Insufficient Charge Warning Feature
The second hand changes to a two second interval
movement to indicate an insufficient charge state.
When the watch first enters this state, it will
continue to run and keep accurate time for up to 3
days before stopping. It is recommended that the watch
be exposed to light regularly to avoid the watch
stopping due to an insufficient charge.
After exposing the watch to light, recharging takes
place and the watch returns to one-second interval
movement after a full recharge.
Quick Start Function
The watch will stop if the power cell becomes completely discharged. It will be
start to operate after a short exposure to light. However, a full recharge will
be necessary to obtain proper operation.
Time Setting Warning Function
If the watch stops, subsequent exposure to light allows
the quick start function to start the watch. The second
hand will move with a “hitch” to indicate the time
needs to be set.
In this case, fully recharge the watch and then set the
time.
Even if the Eco Drive Power Cell is fully recharged,
the “hitch” movement will continue unless the time is
reset and the crown is returned to the normal position.
Over-Charging Prevention Feature
Once the Eco Drive Power Cell is fully charged, the over-charge prevention
feature initiates and prevents over-charging.
Return to Table of Contents
Return to Table of Contents
E. TIME REQUIRED FOR RECHARGING
Time required for recharge may vary according to the design (color and features)
of the dial, and operating environment. Additionally, if the crystal becomes very
scratched, it may not allow sufficient light to the dial. The following table
will serve as a recharge guideline.
Note: recharge time is the time the watch is continuously exposed to light.
Running Time
At Full Charge
Low Charge
Warning
Quick
Start Feature
180 Days
3 Days
Yes
Charge Rates from Indoor Light Source
Indoors, Office
(500 lux)
One Day
Use
1.5 Hours
One Second
Full
Step
Charge
22 Hours 320 Hours
Charge Rates from Outdoor Light Source
Outdoors Cloudy
(10,000 lux)
One Day
One Second
Full
Use
Step
Charge
5 Minutes
1 hours
17 Hours
Fluorescent at 6" Distance
Incandescent at 20" Distance
(3000 lux)
One Day
One Second
Full
Use
Step
Charge
19 Minutes
6.5 Hours
22 hours
Outdoors Bright Sun
(100,000 lux)
One Day
One Second
Use
Step
2 Minutes
14 Minutes
Full
Charge
6 Hours
F. LOW CHARGE WARNING
When the charge level in the power cell reaches a low
state, the second hand starts moving at two-second
intervals to warn that the watch is in need of a full
recharge. It will continue to operate in this state for
approximately 3 days before stopping.
When the happens, be sure to fully charge the watch by
exposing it to light as indicated in the chart above.
When the watch is fully charged, the second hand will
return to normal operation.
two-second interval movement
Time Setting Warning
When the watch has stopped and is exposed to light, the
second hand starts hitch movement. (quick start feature)
The time elapsed before the second hand restarts moving
depends on the type of light the watch is exposed to.
Even after a full recharge, the second hand continues in
a hitch movement to indicate the watch needs setting
(time setting warning feature). When this happens, be
sure to correct the time.
If the watch is insufficiently charged, the second hand
will soon return to two-second interval movement in order
to warn further charging is necessary.
hitch movement
Return to Table of Contents
Return to Table of Contents
G. NOTES ON RECHARGING
Be sure to regularly expose your Eco Drive watch to light every day for optimal
performance. Please note that long sleeves can hide the watch from light and
may cause the watch to become insufficiently charged.
Avoid higho temperatures either during normal wear, storage or recharging,
(above 140 F), as the watch and its sensitive components may become damaged.
High temperature can be experienced from:
x
x
x
Charging the watch with a light bulb that is too close a proximity. Never
get the watch closer than 24 inches to an incandescent bulb, and 6 inches to
a fluorescent bulb.
Never place the watch on the dashboard or rear deck of a vehicle. Very high
temperatures can be experienced here.
H. NOTES ON THE ECO DRIVE RECHARGEABLE POWER CELL
This watch uses a power cell that does not need to be regularly replaced.
Furthermore, it is not a user replaceable item.
NEVER use any other type of battery, such as a silver oxide battery, in this
watch. The over-charge prevention feature will not operate other than with the
original type power cell. Use of any other type of power cell may result in the
movement to burst, causing damage to the watch and even to the wearer.
Return to Table of Contents
Return to Table of Contents
I.
USING THE ROTATING BEZEL
A rotating bezel is provided on some models. The rotating bezel contains the
names of 23 cities arranged in order of time difference. Using this bezel makes
it possible to read the times in 23 major cities around the world.
1.
First check that the current time is
correct for your location.
2.
Turn the rotating bezel so that the city
name at which the 24 hour hand has been set is
alighted at the 24:00 position. The rotating
bezel is normally used in this state.
Example: When the 24 hour hand has been set to
Paris, France time, align “PARIS” on the
rotating bezel to the 24:00 position.
*NOTE: The rotating bezel does not account for
those time zones using “daylight savings” time.
<Reading the Time of Other Cities>
Turn the rotating bezel so that the city name at which
the 24 hour hand has been set (example: Paris) is
aligned as the position of the 24-hour hand.
Read the time of another city by using the “24-hour
scale” as a reference
Example: When determining the time in Tokyo while in
Paris, the 24-hour hand is assumed to be set at the time
in Paris.
1.
Alight “Paris” on the rotating bezel to the
position of the 24-hour hand.
2.
Read the “24-hour scale” at the “TOKYO” position
on the rotating bezel.
(Paris is 18:00 / Tokyo is 2:10
Return to Table of Contents
Return to Table of Contents
PRECAUTIONS ABOUT CARE AND
HANDLING OF WATCHES
TEMPERATURE CARE
Avoid temperature extremes. Exposing your watch to high
temperatures, such as placing it on the dashboard of a vehicle
or use in a hot tub, may cause the watch to malfunction,
shorten battery life or damage certain components. Leaving
the watch in extreme cold temperatures may cause irregular
timekeeping until the watch returns to normal operating
temperature.
SHOCK-RESISTANT
The watch may be worn while playing golf or other activities,
but avoid severe shocks such as dropping it on a hard surface.
MAGNETIC-RESISTANT
No problem should occur from using the watch around
ordinary household electric appliances such as TV sets or
stereos. Keep away from magnets.
CHEMICAL/GAS RESISTANT
Do not expose the watch to chemicals or gases for long
periods.
WATCH CLEANING
Stains, waterspots and accumulated dirt on the case, crystal
or band should be removed with a soft cloth to prevent
damage and premature wear.
HANDLING OF WATER-RESISTANT WATCHES
Although water-resistant watches are warranted, steps should
be taken to avoid damage that may result from
accidents or mishandling:
■ Do not operate the crown or push-button in the water or
while the watch is wet. Tighten screw lock crown completely.
■ Should the watch become immersed in water, dry it off
right away. If the watch comes in contact with salt water, be
sure to rinse it thoroughly in warm fresh water to remove any
trace of salt.
■ If a watch is wet from cleaning or by accident, never store it
in a closed container. It should be dried immediately or taken
to a watchmaker or jeweler if moisture is inside the case to
prevent damage from rust.
■ Vital components necessary to resist the entrance of
moisture deteriorate with time and use. Gaskets, crowns and
other materials should be replaced every year or two to ensure
Marking
on the Dial
Marking
on the
Caseback
that water resistant quality remains at factory specifications.
CARE FOR METAL BRACELETS
To extend the life and maintain the good appearance of the
metal watch bracelet, the following recommendations are
given:
■ Be aware that since the watch and bracelet is worn next to
the skin, it collects dust and perspiration and becomes soiled if
not cleaned regularly. This is particularly true of the inner parts
of the links or mesh of the bracelet.
■ Soil and rust, when present in a bracelet, are dissolved by
perspiration and can cause staining of cuffs and
irritation of the skin in some instances.
■ Heavy perspiration should be wiped off the watch and
bracelet with a soft dry cloth. The bracelet should be cleaned
occasionally by using an old toothbrush and warm soapy
water after which the soap is thoroughly rinsed with clear water
and the bracelet dried completely. The foregoing manner of
cleaning should not be done if the watch is not water-resistant
but should instead be done by your jeweler.
CARE FOR STRAPS
LEATHER
■ Heavy perspiration, if not removed from a leather strap, can
wash out the natural oils and cause the leather to become dry
and deteriorate. Any moisture should be blotted with a soft dry
cloth or paper towel and the strap allowed to dry naturally.
■ Salt residue and soil can be removed from the leather by
cleaning with a dampened soft cloth and mild soap or saddle
soap.
■ Occasionally, the inside surface of the strap should be
cleaned by using a soft cloth dampened with alcohol.
■ The strap should always be worn a little loosely (one finger
space between wrist and strap) to allow air to circulate thus
causing any moisture to evaporate.
RUBBER
■ Rubber straps should be washed frequently with mild soap
and warm water using a soft brush.
■ Thorough cleaning, using the same method, should
especially be done after use in salt water.
■ Solvents, oils, perspiration, tanning lotion and salt can cause
rubber to deteriorate if not removed.
Water-resistant
characteristics
Face washing,
splashes,
sweat,
raindrops, etc.
Swimming
Skin diving
(diving
without
air tanks)
Scuba diving
(diving with
air tanks)
Non water-resistant
watch and must be kept
away from water.
NONE
NONE
NO
NO
NO
NO
NONE
WATER
RESIST
OK
NO
NO
NO
WR100M
WR10bar
WR150M
WATER
RESIST
OK
OK
OK
NO
For frequent use with
water. It is not specially
designed for scuba diving.
WR200M
WATER
RESIST
OK
OK
OK
OK
For skin and scuba diving.
Usable up to the respective
indicated depths.
An ordinary water-resistant
watch and can withstand
splashes, sweat, rain-drops
and etc. for daily life use.
Return to Table of Contents
Return to Table of Contents
Water Resistance
The water-resistant quality of our timepieces is offered in varying degrees depending on the model. This
ranges from non-water resistant models to those suitable for SCUBA diving. Water resistance of our
timepieces is measured in BAR or Barometric Pressure. Each BAR of pressure is equal to 14.5 pounds per
square inch of pressure.
Water resistance is measured when the watch is at a static, or motionless state. As the watch is moved in
water, such as from the motion of swimming, pressure is added from velocity. While you may be swimming in
a pool at surface level, the watch may be experiencing forces equal to that of 100 feet of water pressure
(3 BAR). Diving into a pool can cause forces on the watch to exceed those pressures. As such, you
should always allow a margin of safety when exposing your watch to moisture. Never "push the limit" of
the degree of water resistance of your timepiece.
A primary factor to keep in mind about water resistance is that periodic maintenance is needed to
maintain original factory specifications for water resistance. When a watch is new, it meets
specifications for water resistance as indicated on the case back. However, as the watch ages, the
gaskets that seal the watch become dry and brittle, diminishing its water resistant quality. Exposure to
environments such as chlorinated pools, salt water or soaps from showering can accelerate drying of the
gaskets. We recommend that the gaskets be changed at least every 18 to 24 months to maintain the water
resistant quality of your timepiece. If the watch is frequently exposed to chlorinated pools, soaps salt
water, etc., we recommend that the gaskets be changed on a yearly basis.
From time to time, you may notice condensation that appears then goes away after a short period of time.
This is a normal occurrence and happens primarily from sudden temperature changes. When there are sudden
temperature changes such as entering a cool building from the hot out of doors, or jumping into pool on a
hot day the watch may fog. Conversely, if you go to the cold outdoors from a warm building, fogging may
occur. As long as the fogging clears in a short period of time, there is no need for concern.
Be sure the crown is completely pushed in prior to any contact with moisture. If your model is equipped
with a screw down crown, be sure it is properly seated against the case. Do not operate the crown or any
push button when the watch is wet as this may allow the entrance of moisture. . If at anytime, you notice
moisture in your timepiece that does not clear in a short period of time, you should send your timepiece
as soon as possible to the nearest Authorized Service Center for inspection.
You can determine the level of water resistance of our watches from the markings on your case-back.
Additionally, models that are water resistant to 100 or 200 meters have an indication on the dial as
well. The case-backs and dials are normally marked as follows:
The case back has no indication of water resistance
This indicates the watch is a non water-resistant model and is not designed for contact with moisture at
all. Caution should be exercised to avoid any contact with moisture, such as when washing your hands or
from a rainstorm.
“Water Resist”
This watch is designed to withstand water from accidental splashing, such as from washing your hands or
rain. Any submersion into water may result in the entrance of moisture.
“Water Resist 10BAR” or “W.R. 10BAR”, Dial marked “WR100”
This watch is designed to withstand water pressure up to 333 feet. This includes water exposure from
accidental splashing and rain, but also from showering, swimming in a pool and snorkeling. Be sure to
rinse the watch with fresh water after exposure to a chlorinated pool, salt water, soaps, etc. After
rinsing with fresh water, be sure to dry the exterior with a soft cloth.
“Water Resist 20BAR” or “W.R. 20BAR”, Dial marked “WR200”
This watch is designed to withstand water pressure up to 666 feet. This includes all exposure to water up
to and including recreational SCUBA diving. Be sure to rinse the watch with fresh water after exposure to
a chlorinated pool, salt water, soaps, etc. After rinsing with fresh water, be sure to dry the exterior
with a soft cloth.
Special Note about Jacuzzis and Hot Tubs
The various components used in the manufacture and assembly of your watch expand at various rates. This
results in a loss of the sealing capabilities of gaskets, which may allow moisture to enter. In addition,
heat from these sources can cause deformation of certain materials leading to mechanical failures. For
these reasons, you should remove your watch before entering a hot tub or Jacuzzi.
Return to Table of Contents
Download PDF