MA1903-EA © 2019 CASIO COMPUTER CO., LTD.
Operation Guide 5619
xBe sure to keep all user documentation handy for future reference.
xYour watch may differ somewhat from the one shown in the illustration.
Stopwatch Second Hand |
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Minute Hand |
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Click 2
Hour Hand |
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Click 1 |
Second Hand |
30 |
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Crown |
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Stopwatch Minute Hand |
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Day Indicator |
Stopwatch functions
To adjust the time setting
When the second hand is at 12 o’clock, pull the Crown out to Click 2.
Rotate the Crown to change the time setting.
Push the Crown back in on a time signal to resume timekeeping.
Note
xTake care that you set the correct AM or PM time.
xWhen 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.
To change the day indicator setting
Pull the Crown out to Click 1.
Rotate the Crown away from you to set the day.
Push the Crown back in.
Note
xThe day indicator setting uses a 31-day month. Make adjustments for months of shorter lengths.
xAvoid changing the day indicator setting between the hours of 9:00 p.m. and 1:00 a.m. Otherwise, the day indicator may not change correctly at midnight.
Low Battery Alert
xThe second hand will jump at two-second intervals to alert you when the charge is low.
xHave the battery replaced as soon as possible after low battery alert is indicated.
xStopwatch operation is disabled during low battery alert.
xIf low battery alert occurs during a stopwatch operation, the stopwatch will automatically reset to all zeros and stop.
Crown Operations
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.
If your watch has a rotary bezel...
You can rotate the bezel to align its ▼ mark with the minute hand. Then you will be able to tell how much time has elapsed since aligning the ▼ mark.
Current
Using the Stopwatch
Crown
Loosen
Start
Elapsed time
The stopwatch measures elapsed time in 1-second increments up to 29 minutes, 59 seconds.
Elapsed time |
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A |
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A |
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A |
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A |
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B |
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Start |
Stop |
Resume |
Stop |
Reset |
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Split time |
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A |
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B |
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B |
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A |
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B |
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Start |
Split |
Split release |
Stop |
Reset |
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Important!
x Do not operate the stopwatch with the crown pulled out.
Note
x An elapsed time operation will stop automatically at the end of 30 minutes.
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.
Pull the Crown out to Click 2.
Use A to align the Stopwatch Second Hand with 12 o’clock, and B to align the Stopwatch Minute Hand with 12 o’clock.
After all of the hands are the way you want, push the Crown back in.
Important!
xTimekeeping stops while the crown is pulled out. Correct the current time setting after performing the above operation.
Specifications
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Accuracy at normal |
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Battery life |
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Module No. |
Battery type |
(30 minutes stopwatch |
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temperature (per month) |
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operation per day) |
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5619 |
±20 seconds |
SR927SW |
Approx. 5 years |
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Stopwatch: Measuring Capacity: 29'59" (30 minutes)
Measuring Unit: 1 second
Measurements: Elapsed time; split time
Other: Low battery alert
Specifications are subject to change without notice.
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