Instruction of Watch Movement

Instruction of Watch Movement
Instruction of Watch Movement
Cal. VS72A
SOLAR SERIES
- 1/5 sec. chronograph
- Alarm
 Display
Stopwatch 1/5 second hand
Stopwatch minute hand
Hour hand
Minute hand
Button A
N→1→2
Small second hand
Crown
Date
Button B
Alarm minute hand
Alarm hour hand
 Crown and button operation
Crown position
N : normal
1 : 1st click
2 : 2nd click
Free
Turn clockwise for date
change
Time setting
Button A
Stopwatch Start
Stop
Restart
Sound demonstration
(more than 3 seconds)
[*1]
Button B
Stopwatch Reset
Split
Split release
Alarm time setting
(at 6H small circle)
[*1]
Crown
[*1] Alarm hand and stopwatch hand position adjustment
If the alarm hands are not adjusted to the current time or the stopwatch hands are not in the "0" position, follow
the procedures below to set them.
(1) Pull the crown out to the 2nd click position.
- When the stopwatch is measuring, if the crown is pulled out to the 2nd click position, it will be automatically reset.
- If the alarm has been set and the crown is pulled out to the 2nd click position, the alarm hands will turn to indicate the current time.
(2) Set the alarm hands.
Press the button B repeatedly to set the alarm hands to the time the main time hands indicate.
(3) Set the stopwatch minute hand.
Press the button A for 2 seconds.
- The stopwatch minute hand turns a full round and can now be set to the correct position.
Press the button B repeatedly to set it to the "0" position.
(4) Set the stopwatch 1/5 second hand.
Press the button A for 2 seconds.
- The stopwatch 1/5 second hand turns a full round and can now be set to the correct position.
Press the button B repeatedly to set it to the "0" position.
Press the button A for 2 seconds here will allow you to resume the procedure again as indicated by the arrow if necessary.
(5) Push the crown back to the normal position.
Tips: When setting the hands, the hand moves quickly if the button B is kept pressed.
 How to set time
(1) Pull the crown out to the 2nd click position when the second hand is at the 12 o'clock position.
- When the stopwatch is measuring, if the crown is pulled out to the 2nd click position, it will automatically reset the
stopwatch hands to "0" position.
- If the alarm has been set and the crown is pulled out to the 2nd click position, the alarm hands will turn to indicate the
current time.
(2) Turn the crown to set the hour and minute hands.
Take a.m./p.m. into consideration when setting the hour and minute hands to the desired time.
- The hands be set to the time a few minutes ahead of the current time, taking into consideration the time required to set the
alarm hands and to adjust the stopwatch hands position if necessary.
- When setting the minute hand, advance it 4 to 5 minutes ahead of the desired time and then turn it back to the exact time.
(3) Push the crown back to the normal position.
 How to set date
(1) Pull the crown out to the 1st click position.
(2) Turn the crown to set the date.
- Do not set the date between 9:00 p.m. and 1:00 a.m..
(3) Push the crown back to the normal position.
Tips: When the date change during daytime, it happens when a.m./p.m. is wrongly set. Advance the hour hand by 12 hours.
 Features of the solar watch
This watch is a solar-powered watch containing a solar cell underneath the dial to convert any form of light into
"electrical energy" and store the power in a secondary battery.
Unlike conventional quartz watches, this watch does not use a silver oxide battery, thus eliminating the need
for battery replacement.
 Running time
Expected running time from full charge to stoppage will be around 6 months.
 Over charge prevent function
If the secondary battery is charged more than predetermined voltage, over charge prevent function is
operated to prevent the secondary battery deterioration and breakage.
 Power depletion warning function
When the energy stored in the secondary battery is reduced to an extremely low level, the small second hand
starts moving at two-second intervals instead of the normal one-second intervals. In that case, recharge the
watch as soon as possible by exposing it to light. Otherwise, the watch may stop operating in about 1 week.
 How to charge and start the watch
 Charging the watch
When you start the watch or when the energy remaining in the secondary battery is very low, charge it
sufficiently by exposing the watch to light.
(1) Expose the watch to sunlight or strong artificial light (of more than 1,000 Lx).
When the watch has stopped operating, the small second hand will start moving at two-second intervals.
- The small second hand immediately starts moving at two-second intervals, but the energy stored in the
secondary battery is not yet sufficient. If the watch is turned away from the light, it may stop operating.
It is not necessary to charge the watch fully. It is important, however, to charge the watch sufficiently, especially
in the case of initial charging.
(2) Keep the watch exposed to the light until the small second hand moves at one-second intervals.
(3) When the watch is charged after it has completely stopped, set the date and time before wearing the
watch.
 Caution
When charging the watch, do not place it too close to fluorescent lamp or other light sources as the watch
temperature will become extremely high, causing damage to the parts inside the watch.
 To prevent energy depletion
• Avoid covering the watch face with your clothing while wearing it.
• When the watch is not in use, leave it in a brightly lit place for as long as possible.
Make sure that the watch temperature does not exceed 50℃.
 Guidelines for charging time
The below table provides only general guidelines.
Illumination
A
B (*)
C
(Approx. Hours)
(Approx. Hours)
(Approx. Minutes)
Inside the office
-
35
90
30W 20cm
65
8
20
Cloudy
18
2.5
6
Fine weather
5
1
2
Source of light
(Lx)
(Dial transparency rate is 30%)
Environment
700
A fluorescent lamp
3,000
10,000
Sunlight
100,000
Condition A : Time required for full charge
Condition B : Time required for steady operation
Condition C : Time required for 1 day's charge
(*) The values in this column represent the charging times required until the small second hand moves constantly at one-second intervals
after the watch starts operating with the small second hand moving at two-second intervals.
Even if the watch is not charged for the time specified in the column, the small second hand may temporarily move at
one-second intervals. But it will soon resume moving at two-second intervals; therefore, charge the watch for more than
the specified period.
 How to use stopwatch function
• The stopwatch can measure up to 59'59''8 in 1/5 second increments.
• When the measurement reaches 60 minutes, the stopwatch automatically stops counting.
 Standard measurement
Button A
Button A
Button B
Start
Stop
Reset
 Accumulated elapsed time measurement
Button A
Button A
Button A
Button A
Button B
Start
Stop
Restart
Stop
Reset
Restart and stop of the stopwatch can
be repeated by pressing the button A.
 Split time measurement
Button A
Button B
Button B
Button A
Button B
Start
Split
Split release
Stop
Reset
Button B
Button B
Measurement and release of sprit time
can be repeated by pressing the button B.
 Measurement of two competitors
Button A
Start
Button B
Finish time
of 1st competitor
Button A
2nd competitor
finishes
Finish time
of 2nd competitor
• The stopwatch 1/5 second hand is capable of timing 60 minutes. (60 seconds x 60 times)
• The stopwatch minute hand is capable of timing 60 minutes.
• Before using the stopwatch, be sure to check that the crown is set at the normal position and that the
stopwatch hands are reset to the "0" position.
- If the stopwatch hands do not return to the "0" position when the stopwatch is reset to "0", follow the procedure in "Alarm
hand and stopwatch hand position adjustment".
Reset
 How to use alarm function
The alarm can be set to ring only once at a designated time within the coming 12 hours.
The alarm time can be set in one minute increments.
 How to set the alarm
Before using the alarm, check that the alarm hands are adjusted to the current time.
- If the alarm hands are not adjusted to the current time, follow the procedure in "Alarm hand and stopwatch hand
position adjustment".
(1) Pull the crown out to the 1st click position.
(2) Press the button B repeatedly to set the alarm hands to the desired alarm time.
- The single-time alarm cannot be set for a time more than 12 hours ahead of the current time. While you keep the button B
pressed to advance the alarm hands quickly, they stop when they indicate the current time and the alarm is disengaged.
In that case, release the button B , and then, press button again to set the alarm hands to the desired time.
(3) Push the crown back to the normal position.
- The alarm is automatically engaged.
Tips: While the crown is at the normal position, the alarm hands indicate the current time when the alarm is
disengaged and the designated alarm time when it is engaged.
 How to stop the alarm
At the designated time the alarm rings for 20 seconds, and it is automatically disengaged as it stops.
To stop it manually, press any button.
Tips : While the stopwatch is measuring, the alarm rings differently than usual. However, this is not a malfunction.
While the alarm is ringing, pressing any button will only stop the alarm, and no stopwatch operation can be made.
 How to cancel the alarm time you have set
(1) Pull the crown out to the 1st click position.
(2) Press the button B until the alarm hands stop and indicate the current time.
- The alarm hands move quickly if the button B is kept pressed.
(3) Push the crown back to the normal position.
 How to preview the sound demonstration
(1) Pull the crown out to the 1st click position.
(2) Press the button A for longer than 3 seconds.
- The alarm sound can be heard while the button A is kept pressed.
(3) Push the crown back to the normal position.
 System reset
When an abnormal display appears, reset the built-in integrated circuit.
(1) Pull the crown out to the 2nd click position.
(2) Press the buttons A and B at the same time for longer than 2 seconds.
(3) Push the crown back to the normal position.
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