SEIKO DIGITAL STOPWATCH Cal. S141
You are now the proud owner of a SEIKO Digital Stopwatch Cal. S141. For best results, please read the instructions in this booklet carefully before using your SEIKO Digital Stopwatch. Please keep this manual handy for ready reference.
WARNING
NOTES ON THE BATTERY FOR THE STOPWATCH
Do not remove the battery from the watch.
If it is necessary to take out the battery, keep it out of the reach of children. If a child swallows it, consult a doctor immediately.
Never short-circuit, heat or otherwise tamper with the battery, and never expose it to fire. The battery may burst, become very hot or catch fire.
The battery is not rechargeable. Never attempt to recharge it, as this may cause battery leakage or damage to the battery.
NOTES ON THE STRAP
The stopwatch has a strap for wearing it around your neck. Take good care lest it should be caught by something near you or wind around your neck.
Please also note that the strap may damage your clothes, or injure your hands, neck or other parts of your body.
TO PRESERVE THE QUALITY OF YOUR STOPWATCH
WATER RESISTANCE (10 bar)
Your stopwatch is designed and manufactured to withstand up to 10 bar, and is suitable for taking baths
and shallow diving, but not for scuba diving.
Do not operate the buttons when the stopwatch is wet or in water. If used in sea water, rinse the stopwatch in fresh water and dry it completely.
When bathing with your stopwatch, be sure to observe the following:
*Do not operate the buttons when the stopwatch is wet with soapy water or shampoo.
*If the stopwatch is left in warm water, a slight time loss or gain may be caused. This condition, however, will be corrected when the stopwatch returns to normal temperature.
TEMPERATURES
If the stopwatch is left in direct sunlight for a long time, the display may become black, but this condition will be c o r r e c t e d w h e n t h e s t o p w a t c h r e t u r n s t o n o r m a l temperature. Do not leave your stopwatch in very low temperatures below –10 oC (+14 oF) for a long time since the cold may cause:
a.a slight time loss or gain.
b.the change of digits to become slow.
c.the display light to dim.
However, the above conditions will be corrected when the stopwatch returns to normal temperature.
SHOCKS
Do not subject it to violent shocks.
MAGNETISM
Your stopwatch will not be affected by magnetism.
CHEMICALS
Be careful not to expose the stopwatch to solvents, mercury, cosmetic spray, detergents, adhesives or paints. Otherwise, the case, etc . may become discolored, deteriorated or damaged.
PERIODIC CHECK
It is recommended that the stopwatch be checked once every 2 to 3 years. Have your stopwatch checked by an AUTHORIZED SEIKO DEALER or SERVICE CENTER to ensure that the case, buttons, gasket and crystal seal remain intact.
PRECAUTION REGARDING CASE BACK PROTECTIVE FILM
If your stopwatch has a protective film and/or a sticker on the case back, be sure to peel them off before using it.
STATIC ELECTRICITY
The IC (Integrated Circuit) used in your stopwatch will be affected by static electricity which may disturb the display. Keep your stopwatch away from close contact with objects such as TV screens which emit strong static electricity.
LIQUID CRYSTAL PANEL
The normal life expectancy for a liquid crystal panel is approximately 7 years. After that it may decrease in contrast, becoming difficult to read. Please contact your AUTHORIZED SEIKO DEALER or SERVICE CENTER if you wish to have a new panel fitted (guaranteed one year).
1
TIME/CALENDAR SETTING
Before setting the time/calendar or ID No., be sure to reset the stopwatch to “00.” The time/calendar and ID No. can be set only when the stopwatch is reset.
Month |
Year |
B |
A |
ID No. |
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Date |
Hour |
Seconds |
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TIME/CALENDAR display indicator |
Minutes |
D |
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1.Press “D” to show the TIME/CALENDAR display, and then press “B.” SECOND digits flash. Press “A” to reset the SECOND to “00.”
2.Press “B” repeatedly to select the digits (flashing) to be adjusted in the following order.
TIME/CALENDAR display 
SECOND 
MINUTE 
HOUR 
YEAR 
MONTH 
DATE 
ID NO. 
MEMORY MODE
Setting mode
3.Press “A” to set the digits. The digits move quickly if the button is kept pressed.
4.Press “B” to return to the TIME/CALENDAR display.
Notes:
1.The calendar automatically adjusts for odd and even months including February of leap years from 2006 to 2055.
2.When the SECOND reads any number from “30” to “59” and “A” is pressed, one minute is added.
3.The time is displayed in the 24-hour indication.
4.The ID No. can be set in two digits from “01” to “99”. When “OFF” is displayed, it indicates that no ID No. is set.
5.To change the memory mode, press and hold "A" for 1.5 seconds.
When "OFF" is displayed above "BLOCK," the stopwatch is in the single memory mode, which is the default setting.
When "ON" is displayed above "BLOCK" and the BLOCK mark appears at the bottom right, the stopwatch is in the block memory mode, which is designed for professional level use.
Refer to MEMORY RECALL FUNCTION---BLOCK MEMORY MODE on page 3.
BLOCK mark |
CAUTION |
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Change of memory mode will delete all the |
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previously stored data. |
Single memory mode |
Block memory mode |
ADJUSTING THE CONTRAST ON THE DISPLAY
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The contrast of the liquid crystal display can be adjusted in 10 steps from level “1” to “10.” |
B |
C |
A |
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1. |
Press “C” in the TIME/CALENDAR display to show the CONTRAST ADJUSTMENT display. |
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2. |
Press “A” or “B” repeatedly to adjust the contrast. The display becomes darker by pressing “A” |
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and lighter by pressing “B.” |
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3. |
Press “C” or “D” to return to the TIME/CALENDAR display. |
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Contrast level
D
STOPWATCH
•Up to 300 lap/split time data can be stored in memory and recalled during or after measurement.
•The stopwatch can measure and display the lap/split time that exceeds its limit of 300, but it cannot store the data in memory for the 301st measurement data and afterward.
*When a new measurement is commenced while the stopwatch is in the single memory mode, the lap/split time data obtained from the previous measurement will be automatically deleted.
•For professional level use, the default single memory mode can be changed to the block memory mode, in which commencement of a new measurement will not erase the previous measurement data. The block memory mode is useful for saving records or comparing data.
Refer to MEMORY RECALL FUNCTION---BLOCK MEMORY MODE on page 3.
Before using the stopwatch, be sure to reset the digits to “00.” When the stopwatch is stopped, press “B.”
When the stopwatch is counting, press “A” and then press “B.”
1.STANDARD MEASUREMENT
Press “D” to show the STOPWATCH 1 (Accumulated elapsed time) display.
A |
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A |
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B |
START |
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STOP |
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RESET |
2.ACCUMULATED ELAPSED TIME MEASUREMENT
Press “D” to show the STOPWATCH 1 (Accumulated elapsed time) display.
A |
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A |
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A |
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A |
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B |
START |
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STOP |
RESTART |
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STOP |
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RESET |
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* Restarting and stopping the stopwatch can be repeated by pressing “A.”
Block No.
C
B A
Split time
Lap time
STOPWATCH display indicator |
D |
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Accumulated elapsed time / lap time in progress
2
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