Casio 5373 User Manual

1
Operation Guide 5373
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x Your watch may differ somewhat from the one shown in the illustration.
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Click 1
Crown
Click 2
Crown Operations
Crown
Loosen
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...
Start
Elapsed time
Current
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.
Specifi cations
Accuracy: ±20seconds average per month
Illumination: LED (light-emitting diode)
Battery: One silver oxide battery (Type: SR920SW) and one lithium battery (Type:
CR1616)
Battery Life: Approximately 3years on type SR920SW and type CR1616 (assuming one
9-second illumination operation per day)
x Always have both batteries replaced at the same time.
Illumination Precautions
x Illumination may be hard to see when viewed under direct sunlight.
x Frequent use of illumination runs down the battery.
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.
Note
x Take care that you set the
correct AM or PM time.
x When changing the time,
move the minute hand four
or fi ve minutes past your
fi nal setting, and then back it
up to the setting you want.
To turn on illumination
Note
x Illumination remains turned on as long as L is depressed.
x Illumination will turn off about four seconds after L is released.
Hold down L.
Pull the Crown out to Click 1.
Rotate the Crown towards you to set the day.
Rotate the Crown away from you to set the
day of the week.
Push the Crown back in.
To change the day and day of the week settings
Note
x The day setting uses a
31-day month. Make
adjustments for months of
shorter lengths.
x Avoid changing the day and
day of the week settings
between the hours of 9 p.m.
and 4a.m. Otherwise, the
day and day of the week
may not change correctly at
midnight.

Casio 5373 Specifications

General

Model Number	5373
Type	Digital
Brand	Casio
Category	Watch
Display	Digital
Battery Life	10 years
Backlight	LED backlight
Stopwatch	1/100 second
Calendar	Auto-calendar (pre-programmed until the year 2099)

Summary

Crown Operations

Screw-in Crown Operation

Instructions for unscrewing and screwing back in a water-resistant watch crown to maintain water resistance.

Rotary Bezel Usage

Using Rotary Bezel for Elapsed Time

Align bezel mark with minute hand to track elapsed time.

Time Setting Procedure

Pull Crown to Adjust Time

Pull the crown to the second click position to set the time.

AM/PM Time Setting Note

Ensure correct AM/PM setting by advancing minute hand past final setting.

Day and Day of Week Setting

Set Day and Day of Week

Pull crown to first click; rotate towards you for day, away for day of week.

Day Setting Month Adjustment

Adjust for months with fewer than 31 days.

Day Setting Time Restriction

Avoid setting day/day of week between 9 PM and 4 AM for accuracy.

Illumination Function

Turning On Illumination

Hold down the button to activate illumination.

Illumination Duration

Illumination stays on while button is held and turns off shortly after release.

Illumination Precautions

Illumination visibility reduced in sunlight; frequent use drains battery.