MA1212-EA
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Operation Guide 5345
Using the Stopwatch
The stopwatch measures elapsed time in 1/10-second increments up to 59 minutes,
59.9 seconds.
x
x
Your watch may differ somewhat from the one shown in the illustration.
Some models may use a combination of hands and rotating disks to indicate
information. The word “hand” in this section is used to mean both analog hands
and rotating disks.
Elapsed time
Stopwatch 1/10-Second Hand
A
A
A
A
B
Hour Hand
Minute Hand
Start
Stop
Re-start
Stop
Reset
Split time
B
A
A
A
B
B
Click 2
Start
Split
Split release
Stop
Reset
Stopwatch Minute Hand
Second Hand
Click 1
Two finishes
ꢀꢁ
A
B
A
B
B
Start
Split
First runner
finishes.
Stop
Second runner
finishes.
Split release
Display time of
second runner.
Reset
B
Display time of first
runner.
Crown
Day Indicator
Stopwatch Second Hand
Important!
x
Do not operate the stopwatch with the crown pulled out.
Stopwatch functions
Note
x
An elapsed time operation will stop automatically at the end of 60 minutes.
To adjust the time setting
To change the day indicator setting
Pull the Crown out to Click 1.
When the second hand is at
12 o’clock, pull the Crown out to
Click 2.
Correcting the 0 Positions of the Hands
Perform the following procedure if the stopwatch hands do not return to their 0 (zero)
positions when you reset the stopwatch.
Rotate the Crown to set the day.
Rotate the Crown to change the
time setting.
Pull the Crown out to Click 2.
Push the Crown back in.
Note
x
Push the Crown back in.
The day indicator setting uses a 31-
day month. Make adjustments for
months of shorter lengths.
Avoid changing the day indicator
setting between the hours of 9
p.m. and 1 a.m. Otherwise, the day
indicator may not change correctly at
midnight.
Press A to move the
x
clockwise.
Stopwatch 1/10-Second Hand
Holding down A will move the hand at high speed.
Press B to move the clockwise.
Note
Stopwatch Second Hand
Holding down B will move the hand at high speed.
The is synchronized with the
x
x
Take care that you set the correct AM
or PM time.
x
x
.
Stopwatch Minute Hand
Stopwatch Second Hand
x
When changing the time, move the
minute hand four or five minutes past
your final setting, and then back it up
to the setting you want.
After all of the hands are the way you want, push the Crown back in.
Important!
Crown Operations
Crown
x
Timekeeping stops while the crown is pulled out. Correct the current time setting
after performing the above operation.
Some water-resistant models (100 meters, 200 meters)
have a screw-in crown. When you need to perform a crown
operation, rotate it towards you to unscrew it. Then pull
the crown out. Avoid applying undue force when pulling.
The watch loses its water resistance while the crown is
unscrewed. After performing a crown operation, fully screw
the crown back in.
Specifications
Accuracy: 20 seconds average per month
Loosen
Stopwatch: Measuring Capacity: 59'59.9" (60 minutes)
Measuring Unit: 1/10 second
If your watch has a rotary bezel...
Start
Measurements: Elapsed time; split time; two finishes
You can rotate the bezel to align its
mark with the
▼
Battery: One silver oxide battery (Type: SR920SW)
Battery Life: Approximately 2 years (60 minutes stopwatch operation per day)
minute hand. Then you will be able to tell how much
time has elapsed since aligning the mark.
▼
Elapsed time
Current
1
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