Citizen Eco Drive B741 Setting Guide

Setting Guide for Eco Drive
Movement Caliber B740 / B741
Contents (click on a topic)
1.
2.
3.
4.
Outline
Specifications
About Solar Powered Watches
Handling the Watch
a) Name of Parts
b) Warning Functions of This Solar Powered Watch
c) Time Required for Charging
d) Special Care for This Solar Powered Watch
e) Switching Between Modes
f) Adjusting the Time and Date (Time Mode)
g) Diving Mode
h) Chronograph Mode
i) Measure Against Possible Problems
j) Setting Function Hand at ‘0’ Position
k) All Reset / Adjusting Hand Position
5. Relationship Between Charge Level Indication and
Running Period of Watch
6. Note on the Eco Drive Manganese Titanium Rechargeable Battery
7. Precautions for Diving
8. Care of your Watch
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1. OUTLINE
This watch is an analog solar powered diver's watch into which an electronic
depth meter and chronograph function and chronograph function are built. The
solar power generation function transforms solar energy into electrical energy
to run the watch.
• Since solar energy is used as the power source of this watch, it has no need
of regular replacement of the battery unlike the general diver's watches
using the mercury cell, etc. (Solar power function)
• The built-in depth meter function automatically measures the depth in diving
with the watch worn on the wrist. (Depth meter function)
• The maximum depth in diving is automatically memorized. (Maximum depth
memorizing function)
• The chronograph function measures the time in units of one second for 50
minutes at maximum.
2. SPECIFICATIONS
Movement Caliber NO.
B740M / B741 M
Type
Analog solar power watch
Watch Accuracy (At normal
temperature)
±15 sec/month (5'C-35OC/41"F-95"F)
Depth gauge accuracy
At depth of 1 to 1 Om/5.0 to 25.Oft: within ± 1
m/±5.Oft
At depth of 1 to 1 to 50m/27.5 to 125.Oft: within
±2m/±7.5ft
On the condition that the water temperature is
constant and error in reading is excluded.
Temperature range for guaranteed accuracy: +10'C to
40'C/50'F to 104OF
Depth gauge accuracy is influenced by changes in
surrounding temperature.
Operating temperature
Display
functions
Time
Hour, Minute, Second, 24-hour, Charge level
Calendar
Date
Chronograph
Minute, Second (50-minute system)
Depth gauge
1 m to 50m/5ft to 1 25ft
Reading in units of lm/5ft
Depth less than 1 m/5ft is indicated as 0m/Oft.
Depth more than 50m/1 25ft is indicated as over-zone
Maximum depth to be
memorized
Additional functions
Continuous
operating time
Additional
Comments
-1OC to +60OC/14F to 40F
1 m to 50m/5ft to 1 25ft
* Charge level indication function
* Insufficient charge warning indication a Stop
warning function
* Time reset warning function
*
*
*
2
From full charge to stopping: Approx. 2 months
From full charge to NG indication: Approx. 1 month
Form insufficient charge warning to stopping: Approx.
days
Movement Caliber B740: Depth indication in meters
Movement Caliber B741: Depth indication in feet
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3. SOLAR-POWERED WATCH
When the watch is used for diving (about two hours a week), it will run for about
one month (until NG is indicated).
An Eco Drive Rechargeable battery is used in this watch to store electrical
energy. If the rechargeable battery is fully charged once, the watch will
continue running for about two months.
<How to use this watch properly>
It is recommended that you recharge the battery everyday.
To insure that this watch demonstrates its depth meter function and chronograph
function besides the timekeeping function, always keep it sufficiently charged.
If the battery is not sufficiently charged or the battery power is very low, the
depth meter function and chronograph function cannot be activated.
The battery of this watch is protected from overcharge.
* For recharging the battery, expose the solar cell (the face of the watch) to
light.
4. USING THIS WATCH
A. Name of Parts
Charge
levels
Over-zone
mark
Depth meter
scale
Charge level of the battery (battery power) is indicated as follows
(LV.1, LV.2, NG) by the function hand. These guidelines indicate
whether the depth meter function is usable or not.
When the diving depth exceeds 50 meters (125 feet) or there is
something abnormal in the depth meter function, the function hand
points to the over- zone mark.
The diving depth is indicated by the function hand on this depth
meter scale.
Pressure Measures the depth by sensing the water pressure.
sensor
Water sensor When the water sensor gets wet, the watch is automatically shifted
to the diving mode.
Rotating bezel The diver can know the elapsed time of diving by using this rotating
bezel.
Solar cell Electric energy necessary for running the watch is generated by this
solar cell when it is exposed to enough light for charging the
battery.
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B. Warning Function of this Solar Powered Watch
With decline of the battery power of this watch, its warning function is
activated to change the indication.
[Normal
indication
(Time mode)]
Function
hand: Points
at LV.2, LV.1
or NG.
[Insufficient
charge warning
indication]
Function hand:
Points at NG
[Stop warning
indication]
Function hand:
Points at "O"
Mode hand:
Points at "O".
[Time reset warning
indication]
Function hand:
Points at NG,
Charge Level Indication
The function hand indicates the charge level as follows (LV.1, LV.2 and
NG) to let the user know whether the watch can be used for diving or not.
In the diving mode, consumption of battery power is considerably
increased because the pressure and water sensors are actuated. Before
using this watch for diving, charge the battery sufficiently and confirm
the charging level which is indicated by the function hand.
<When the function hand points at LV.1 (at
56- seconds’ position)>
The watch is securing battery power enough
for sports diving at the depth of 20m (66ft)
or so for about an hour.
• However, when the function hand points at
LV.1 as a result of charging the battery
after it was once depleted (after the
status that the function hand indicated
NG), be sure to charge the battery with a
lighting of 3000 lux (20 cm under a
fluorescent lamp) for at least 10 minutes
before diving.
• If diving continues for more than one
hour, pay careful attention to the
indication of the function hand, because
the indication may change to NG from LV.1
during the diving and the watch may
discontinue measuring the depth.
<When the function hand points at "LV.2"
(54 seconds)>
The battery is almost fully charged.
Accordingly, the watch can be used reliably
for diving.
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<When the function hand points at "NG"
(58 seconds)>
The watch will not shift to the diving mode
because of insufficient charging. When the
watch is in this status, it cannot be used
for diving because its depth meter function
won't be activated.
If the function hand points to "NG" during a
dive, immediately stop using relying on the
watch for depth measurement.
x
Use the indication of the charge level as a reference only.
x
If the watch is exposed to strong light for charging the battery,
the function hand may temporarily indicate "LV.I" or "LV.2" despite
insufficient charging. If the function hand goes to "LV.1" or "LV.2"
from "NG" position in a short time, you need to pay careful
attention to charging conditions.
It is recommended that you keep the battery sufficiently charged all
the time but especially before using the watch for diving. Always
check the indication of charge level carefully just before diving.
(For details of charging time, refer to "C. Time Required for
Charging".)
Insufficient charge warning function
Insufficient charge warning indication Made hand: DV position, Function hand: NG
positionWhenever the battery power becomes
insufficient for operation, the watch is
automatically shifted to the Time mode
regardless of the currently set mode and the
second hand goes for 2-second interval
movement. (insufficient charge warning
indication)
If the watch is left in this condition
without recharging for another two days, the
watch will stop.
• If the watch falls into such condition, the
time measurement will be discontinued in the
chronograph mode.
• While the watch is falling into the
insufficient charge warning indication, all
button operations are ineffective except the
maximum depth operation.
Since the watch continues accurate indication of the date and time even in
the insufficient charge warning indication, the watch will recover normal
operation if it is exposed to light sufficient for charging the battery.
For using the watch the watch for diving, sufficiently charge the battery
until the function hand indicates “LV.1” or “LV.2” on the charge level.
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Stop warning function
Stop warning indication
- Mode hand: "O" position, Function hand: "O" position If the watch is left in the insufficient charge warning indication for
two days, both the mode hand and function hand will move to "O" position
respectively, If the watch falls into this condition, it indicates that
the watch has stopped operation completely. (Stop warning indication)
* All functions of the watch are inactivated in this indication.
When the rechargeable battery is charges in this condition, the watch
restarts operation as it is switched to the time reset warning
indication
Time reset warning function
Time reset warning Indication - Mode
hand: DV position, Function hand:
NG position With progress in charging the
battery as the watch is exposed to
light, the watch starts running but
shows incorrect time. In this
condition the second hand moves
irregularly every two seconds to
show that the time is incorrect.
(Time reset warning indication)
To change the watch to time mode, reset the watch correctly after fully
charging the rechargeable battery.
If the rechargeable battery is sufficiently charged but the watch has
not been reset to the correct time, the second hand continues to go
irregularly every two seconds
Overcharge prevention function
This watch has an overcharge prevention function. When the secondary
battery is fully charged, this function is activated to protect the
battery from overcharge by cutting of power supply. This function
relieves you from worry about overcharge.
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C. Time Required for Charging
Since time required for recharging the battery varies according to model
(depending on the dial color, etc.), refer to the following table as a rough
guideline for charging the rechargeable battery.
Charging time required for fully charging:
Time required for fully charging the battery, starting from the state
that the watch has stopped operation (in the stop warning indication).
Charging time for one-day operation:
Time required for charging the battery enough for running the watch for
one day, starting from the state that the second hand normally goes
every second.
(Note) For using the watch for diving (one-hour diving a day), time
required for charging must be extended 1.5 times as long as the
time appearing in the table.
D. Special Care for this Solar Powered Watch
<Always take care to charge the battery of the watch. >
* Mind that the battery power is likely to decline if you wear a jacket
or a long sleeve shirt, because the watch is usually shaded by such
clothes and the battery is insufficiently charged as a result.
* Try to put the watch in a well-lit place, as far as circumstances
permit, when you take it off. If you do, the watch will continue normal
running.
- Notes on charging * Avoid charging in a hot place where the ambient temperature is
+60'C/140'F or more, because an extreme rise in temperature may cause a
breakdown of the watch.
Examples: Charging near a hot light source such as an incandescent
lamp, halogen lamp, etc. Charging in a place that easily
becomes hot such as on a car dashboard, etc.
- When the watch is exposed to an incandescent lamp for charging,
carefully keep the watch 50 cm (20 in.) or more apart from it so as not
to get the watch hot.
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- Note on handling the Eco Drive rechargeable battery * The user should not remove the rechargeable battery from the watch. If you
remove the battery from the watch for unavoidable reasons, be sure to keep
it outside the reach of a child to prevent him/her from swallowing it.
* If a child swallows the rechargeable battery by mistake, immediately consult
a doctor for treatment.
- Use the specified Eco Drive Rechargeable battery only * Never use any battery other than the specified rechargeable battery. This
watch is so designed that it does not run with any battery other than the
specified secondary battery. However, if another battery such as a silver
oxide for example, is forcibly set in the watch and it is charged, the
battery will not only be overcharged, but may burst. This will result in
damage the watch and injure the user and other people.
To repeat the warning, use the specified rechargeable battery only without
fail whenever the rechargeable battery needs replacement.
E. Switching Between Modes
* Each time button (A) is pressed for two seconds, the mode is switched
from the time mode to the chronograph mode and vice versa.
- If the water sensor gets wet while the watch is in time mode,
even from accidental splashing, the mode is switched over to the
diving mode. However, this mode shift is not performed when the
function hand indicates "NG" on the charge level index.
<Time mode>
<Chronograph mode>
~
Function hand “0” position
Mode Hand: “0” position
Function hand: "Charge level index"
position Mode hand: "DV"position
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F. Adjusting Time and Date (Time mode)
The watch shows time and date in the
Time mode.
Time (shown by hour, minute, second
and 24-hour hands) and date can be
checked any time regardless of the
mode.
Besides time and date, the function
hand indicates the battery power at
three levels.
How to adjust time
Time can be adjusted in the Time mode.
1. After turning the crown counterclockwise to unscrew it, pull the
crown out to the time adjustment position (the second click stop
position), the second hand will stop running.
2. Set the watch for the correct time by turning the crown.
3. Press the- crown in to the normal position and the watch (second
hand) starts running.
4. Turn the crown clockwise to screw it tightly against the case.
When the crown is pulled to the time adjustment position, the function
hand points at the "O" second position. If the function hand does not
point at the "O" second position, correct the hand position referring to
section "J. Setting Function Hand at "O" Position.
How to adjust date
1. After turning the crown counterclockwise to unscrew it, pull the
crown out to the date adjustment position (the first click stop
position).
2. Set the watch for the correct date by turning the crown.
3. Press the crown in to the normal position.
4. Turn the crown clockwise to screw it tightly against the case.
Note: If date is adjusted when the watch shows a time between 9:00 PM
and 1:00 am, the watch may not advance the date indication the next
morning.
<Note on operation of the crown>
x The crown of this watch is designed to be screwed down onto the case
to secure the water-resistance of the watch.
x For pulling out the crown for adjustment, unscrew it to get it loose
first.
x After adjustment with the crown, press it in to the normal position
and then screw it down with- out fail.
x Do not operate any button while the crown is being pulled out. If a
button is operated in such the status, it may cause some change in the
indication or disorder of some hand(s).
Do not pull out or turn the crown
when the watch gets wet or is in the
water.
Otherwise, the watch loses waterresistance and the inside of the
watch gets wet.
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G. Diving Mode
When the watch is immersed in the water, while it is set in the Time
mode and the battery is charged enough for diving, the water sensor
senses the water and switches the watch to Diving mode to measure the
depth. In the Diving mode, the watch automatically memorizes the maximum depth of the last dive and the user can recall it after the dive.
* If the function hand and mode hand
don't point to their respectively
specified
positions
(mode
hand:
"DV" position, function hand: "O"
position) when the watch enters the
Diving
mode
(standby
status),
adjust the hand positions referring
to section "1. Measures against
possible problems".
<Depth indication>
Indication range: 0 to 50 m (O to 125 ft) deep (measured every second)
Indication unit: 1 m/5 ft (Decimals of five and above in the first decimal
place are rounded up and anything under five in the first decimal place is
rounded down.
Depth less than 1 m/5 ft is indicated as 1 m/0 ft.)
<Manner to read depth indication>
When the watch reaches the depth of 1 m/5 ft or more in diving, it starts
measuring the depth. In diving, the indication by the function hand
represents the depth.
* When the depth is less than 1 m/5 ft, the function hand indicates 0-m/0
ft.
* When the depth exceeds 50 m (1 25 ft), the function hand stops at the
over-zone mark (52-seconds position) to show that the depth is out of the
indication range. As the diver ascends in the water and the depth is less
than 50 m (1 25 ft), the watch again indicates the depth.
<How to cancel the Diving mode>
(1)
(2)
Press button (A) for 2 seconds after diving or in the water where it is
less than 1 m (5 ft) deep (depth indication: 0-m/0 ft). The Diving mode
is canceled and the watch returns to the Time mode.
When the watch is left for 10 minutes after diving or in the water where
it is less than 1m (5 ft) deep (depth indication: 0 m/0 ft), the watch
automatically returns to the Time mode with cancellation of the Diving
mode. If the watch is again immersed in the water 1 m (5-ft) or more
deep within 10 minutes after the last dive, the new dive is regarded as
a continuation of the last dive and the watch continues to measure
depth.
* Wet detection error indication
If the diving standby mode (water sensor is in action) continues for 1 hour or
more, the function hand points at the over-zone mark.
If the watch remains in this status for a long time, refer to section "1.
Measures against possible problems".
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<How to recall the memorized maximum depth>
(1) Press button (B) in the Time mode or Diving
mode (when depth indication is 0 m/Oft). The
function hand indicates the memorized maximum depth.
(2) To cancel the maximum depth indication,
press button (B) again.
*Indication of the memorized maximum depth
continues for 30 seconds and is automatically
canceled after that.
x The memory of the maximum depth of the last dive is held until the watch is
used in the next dive.
x If the maximum depth in diving is less than 1 m (5 ft), it is not memorized.
On the other hand, if the maximum depth exceeds 50 m (125 ft) it is memorized
as an over-zone depth.
x When the watch is used in diving for the first time, it occasionally shows
data stored during inspection prior to shipment.
H. Chronograph Made
The chronograph function enables this watch to measure time in units of 1 second
for a maximum of 49 minutes 59 seconds. When it has reached 50 minutes, since a
time measurement was started, the chronograph stops measuring time and the hands
move to the reset position.
<Chronograph indication - Reset position -> * If the watch is left in reset
status in the chronograph mode for 3
minutes, it automatically switches to the
Time mode.
<How to measure time>
(1) In the Time mode, press and hold button (A) for 2 seconds or more to switch
the watch to the Chronograph mode. As a result, both the function hand and mode
hand quickly go to their respective "O" positions and then stop.
(2) Each time button (B) is pressed, both the hands start and stop alternately.
(3) If button (A) is pressed while both the hands are stopped, the chronograph
switches to the reset status.
~
* The watch cannot be switched to the Chronograph mode from the Diving mode.
* If the function hand or/and mode hand do not reset to their respective "O"
positions when the watch enters the Chronograph mode or the chronograph is reset,
adjust the hand(s) to the "O" position referring to section "1. Measures Against
Possible Problems".
* The mode cannot be changed while the time is being measured in the Chronograph
mode. If the mode is changed while in the stop-state of the Chronograph mode, then
indication is cleared.
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1. Measures Against Possible Problems
If the solar powered watch is insufficiently charged or its battery power is
considerably consumed, the watch functions are limited to a certain range and
the watch warns the user of its status by various means such as abnormal
indications.
To avoid such a power failure, always keep the battery sufficiently charged.
* One of the hands is out of the correct position.
If a strong shock or static electricity is given to the watch by careless
handling, the hands may show an incorrect indication.
• Adjust the function hand (chronograph second indicator) when it is out of
the "O" position (the mode hand functions normally) in the following
conditions referring to section "J. Setting Function Hand at "O" Position".
1) When the watch is in the reset status of the Chronograph mode
2) When the watch is set to the time adjustment mode (the crown is pulled to
the second click stop position)
3) When the watch is in the diving mode (standby status).
• In the case the function hand and/or the mode hand are out of their
respective "O" position in other modes, adjust the hand(s) referring to
section "K. All Reset/Adjusting Hand Position".
* The second hand jumps 2 seconds every 2 seconds.
Note this as the insufficient charge warning that warns the user of a decline
in battery power. If it occurs, immediately recharge the battery sufficiently.
* For details, refer to section "B. Warning Functions of this Solar Powered
Watch".
* The second hand moves irregularly every 2 seconds.
Note this as the time setting warning that warns of incorrect time indication
caused by a temporary stoppage of the watch. In such a case, sufficiently
charge the battery, and then set the watch for the correct time.
* For details, refer to section "B. Warning Functions of this Solar Powered
Watch".
* The modes cannot be switched.
If the battery power drops, the modes cannot be switched under the following
conditions.
* When the function hand points to "NG", the watch cannot be switched over to
the Diving mode even if the water sensor gets wet.
*
When the watch is in the insufficient charge warning status, the mode cannot
be switched over to the Chronograph mode.
In such a case, sufficiently charge the battery.
* For details, refer to "B. Warning Functions of this Solar Powered Watch".
* The watch does not switch to the Time mode from the Diving mode (depth
indication mode).
When the user is at high altitudes or is on an airplane flight, the watch may
unexpectedly be shifted to the Diving mode because of a sharp change in the
atmospheric pressure (pressure change equivalent to the depth of 1 m/5 ft). If it
occurs, the watch may fail to switch from the Diving mode after the user goes
back to the ground level, because the depth meter function didn't reset the depth
indication to "O m (O ft)". In addition to the aforementioned case, the watch may
enter the Diving mode because perspiration or other moisture activates the water
sensor.
If the depth indication is less than 4 m (15 ft), press button (A) for 2 seconds
or more to switch to the Time mode. If the depth indication is more than 4 m (15
ft), adjust the watch according to section "K. All Reset/Adjusting Hand
Position".
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K. All Reset / Adjusting Hand Position
* The function hand continues to indicate the over-zone mark.
If the water sensor gets dirty or wet, it is activated even when the watch is
not wet and the wet detection error indication (the function hand points to the
over-zone mark) appears.
In case the watch falls into this status, carefully clean the water sensor part
and wipe out moisture completely.
* If careful cleaning results in failure in recovering the watch from the
above-mentioned status, it is possible that the pressure sensor is faulty. In
that case, immediately stop using the watch and consult the Citizen Service
Center.
* The watch malfunctions otherwise or shows abnormal reading.
If a strong shock or static electricity is given to the watch, the watch may
come into abnormal running that is out of explanation of this instruction
manual.
If the watch falls into such a status, adjust it following the instructions of
"K. All Reset/Adjusting Hand Position".
J. Setting Function Hand at "O" Position
Within +/- 1 5 graduations
before/after the "O" point.
1. Set the watch to the Time mode or
Chronograph mode.
Turn the crown to loosen it and
pull it out to the second click
stop position.
2. Press button (A) or (B) to set
the function hand to the "O"
position.
3. Press the crown in to the normal
position and turn it until it is
tightly screwed against the case.
x The aforementioned procedure is effective only when the hand is located
within ±15 graduations before/after the "O" point. When the hand is located
outside the adjustable range, correct the "O" position of the hand
referring to section "K. All Reset/Adjusting Hand Position".
x If the watch has been left without any operation for 3 minutes or longer as
the crown is pulled to the second click stop position, the function hand
does not move regardless of button operation. If the watch falls into such
the condition, press the crown into the normal position and make a fresh
start to adjust the hand position.
x Before unscrewing and pulling out the crown, make sure that the crown is not
wet.
Automatic time correction function
If it takes 4 minutes or less to adjust the position of the function hand in
the Chronograph mode, the watch automatically sets the hour, minute and second
hands for the correct time immediately after the adjustment by the automatic
time correction function. Therefore, if adjustment is finished within 4
minutes, the watch has no need of manual time correction. However, if the crown
is turned during adjustment, the watch will not indicating a correct time. If
adjustment is not complete within 4 minutes, you will need to not only adjust
the "O" position of the second indicator (function hand) in the Chronograph
mode but also to set the correct time.
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1. Unscrew the crown and pull it out to
the second click stop position.
2. Press buttons (A) and (B)
simultaneously. If the function hand
moves slightly, the watch is reset in
whole.
3. Press button (A) or (B) to set the
function and mode hands to their
respective "O" positions.
Button (A): For adjustment
Counterclockwise.
Button (B): For adjustment clockwise.
*The function hand and the mode hand
move interlocking with each other.
4. Correct the time indication by
5. Press the crown in to the normal position and screw it down tightly against
the case.
As the crown is pressed into the normal position, the watch returns to the
Time mode and starts running.
* After the watch is reset, the function hand points at "NG" position regardless
of remaining battery power. Approximately 1 hour after resetting, the function
hand will indicate the charge level. (While the function hand is indicating
"NG", the watch cannot be switched to the Diving mode
* If the ALL RESET/ADJUSTING HAND POSITION fails in clearing away the trouble,
consult the Citizen Service Center about the trouble.
5.RELATIONSHIP BETWEEN CHARGE LEVEL INDICATION AND RUNNING
PERIOD OF WATCH
[LV2 on the charge level indicator (function hand) indicates that charging
is completed. (The rechargeable battery is at full charge)]
The charge level indication (function hand) indicates the charge level of the
battery with three marks of LV.1, LV.2, and NG.
The relationship between these levels and the running period of the watch is
shown below. After the battery is fully charged, LV.1 is indicated for about one
month in which the watch can be used for diving.
If the battery is fully charged, function hand indicates LV.2. In several hours
- one day after charging is stopped, the scale indicates LV.1 again. (The time
when LV.2 changes to LV.1 after the battery is fully charged depends on the
intensity of the light used for charging and the length time taken to charge the
battery fully.)
Then, function hand keeps indicating LV.1, then indicates NG to inform that the
watch cannot be used for diving.
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<Remark>
As explained above, LV.1 indicates the range from condition (1) that the battery
is almost fully charged and the watch can be used for diving sufficiently to
condition (9) that the watch can be used for at least "one diving about one hour
long" and NG appears soon. Accordingly, the condition of LV.1 is explained as
the condition that "the watch can be used for one diving about one hour long" on
the instruction manual (explanation of the charge level indication), considering
the safety and assuming the worst condition.
6. NOTE ON ECO DRIVE RECHARGEABLE BATTERY
The rechargeable battery used in this watch is a clean energy battery
that incorporates no toxic substance such as mercury inside. The
secondary battery has no need of periodical replacement because it is
capable of repeated charging and discharging.
7. PRECAUTION FOR DIVING
Be sure you fully understand the precautions on use of this watch and how to
use it in advance.
<Before using this watch for diving>
* For using this watch as an auxiliary depth gauge, the user must not only
receive general training and instructions in diving but also follow various
rules.
*
The user should not use this watch without a good knowledge and
understanding of the proper way to handle and operate it and the precautions
on it. If this watch is improperly used, it may result in malfunction or
breakdown of the watch.
<Regarding the depth meter function>
* Since the depth meter function of this watch is not approved as an official
depth gauge, use this function as an auxiliary means to measure a depth.
* Read the depth meter indication of this watch as a rough guideline.
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<For safe diving>
• When diving, obey the rules of the buddy system* every time.
• For safety, it is advised that you enjoy sports diving in the depths around 20 m
(60 ft).
• Before diving with this watch, fully charge the battery without fail. When the
battery is not sufficiently charged (the function hand points at "NG"), the depth
meter function cannot be used. If battery power declines considerably during diving,
the depth meter function to measure depth is discontinued.
• After diving, take a good rest following safety rules. If you take a plane or move
to a high place without a sufficient rest after diving, you may suffer from
decompression sickness (caisson disease).
* Buddy system means that two divers pair with each other for safe diving
<Circumstances that prohibit use of this watch in diving>
DO NOT use this watch for diving under the following circumstances.
x When the function hand indicates "NG" on the charging level index.
When the function hand indicates "NG" on the charging level, the watch will not
measure the depth. If the function hand points at "NG" on the charging level
during diving, immediately stop using the depth meter function of the watch
since the watch discontinues depth measurement in this condition.
x When the watch stops running or malfunctions. (Be careful not to knock the
watch against hard things such as diving apparatus, rocks, etc.)
x When the water temperature is out of the guaranteed range for measuring depth.
The accuracy of the depth meter function is guaranteed under the condition that
water temperature is between + 1 O'C and +40'C (50'F and 104'F).
x For the purpose of knowing a risk of a behavior or situation.
This watch is not designed to serve as a drowning prevention instrument or an
emergency instrument.
x In the environment filled with helium gas (saturated diving, etc.).
Use of the watch in such conditions may cause failure or breakdown of the
watch.
<During diving>
x Avoid quick ascending, otherwise you may suffer from submarine sickness or
a functional disorder in some way. Whenever you ascend in water, carefully
keep a safe speed.
x Don't disturb any push buttons or the crown except button (B) (for knowing
the memorized maximum depth) throughout the dive, otherwise the watch may
fail in water-resistance.
<After diving>
x After confirming that the crown is screwed down tightly, wash out
seawater, mud, sand, etc. sticking to the watch, with fresh water. Then,
wipe off water and moisture with a dry soft cloth.
x Neither remove the sensor cover nor pick at it with a sharp-point in
order to remove particles of dust, etc. collected in the sensor. If the
sensor part is packed with dust, etc., wash it out with fresh water. In
case it is difficult to wash out dust, consult the nearest Authorized
Citizen Service Center about the trouble.
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<Regarding diving at high altitudes or in fresh water>
x If you intend to use this watch for diving in a high place or in fresh
water, be sure to have a special education in safe diving beforehand.
x Don't use the depth meter function of this watch in a high place 4,000-m
(13,120-ft) or more above sea level, because the watch gives incorrect
measurement of depth in such a place.
x This watch indicates a depth based on the specific gravity (1.025) of
seawater. Therefore, if the watch is used in fresh water, the real depth is
2.5% less than the indication of the watch. Example: 20 m (65 ft)
(indicated depth) x 1.025 = 20.5 m (67 ft) (real depth)
When the watch is shifted to the dive mode, the pressure sensor
regards the ambient pressures as that on the sea level (0m/0ft in
depth or altitude) If the watch is shifted to the dive mode in a high
place, it regards the pressure on the surface of the water as that on
seal level (0m/0ft in depth/altitude). In short, the watch always
regards the surface of the water as that of sea level (0m/0ft) except
in a place 4,000m (13,120ft) or more above sea level. Therefore you
are advised NOT TO use the depth meter function of this watch at high
altitudes for the reason that the watch will give inaccurate
measurement in depth.
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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.
See instruction book for further information
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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
“Call” Indicator
Some of our analog Aqualand dive watches feature the ability to ‘recall’ the depth attained on the most
recent dive, up to 125 feet or 50 meters. This feature is indicated by the word “CALL” on the dial
between the 5 and 10 minute position. To review the depth of the last dive, while in the time mode, press
and release the upper right button to activate the ‘call’ feature. The ‘function hand’ will rotate to indicate
the depth attained on the most recent dive (depth is indicated on the dial ring marked 10,20,30,40,50,
etc..) To return to the time mode, press and release the upper right button again.
‘function’ hand
depth indicator
on dial ring
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