Watch Catalog

Casio module 5338

Quartz module. 5338 is the number engraved on the caseback of these watches, and Casio files its operation manual under it. 16 watches in the catalog run on it.

How to operate module 5338

Short steps in our words. The buttons are lettered as in Casio's operation guide, where each task's page is given.

Set the time and date

  1. In the Timekeeping Mode, hold A for about two seconds until the seconds flash.
  2. Press C to step through the settings: seconds, DST, Home City, hour, minutes, 12/24-hour format, year, month, day.
  3. On the seconds, press D to reset them to 00.
  4. On the hour, minutes, year, month or day, press D to go up and B to go down.
  5. On the 12/24-hour format, press D to switch.
  6. Press A to leave the setting mode.

Good to know

Set the Home City before the time: world time is worked out from it.

From Casio's guide, page E-15

Daylight saving time

  1. In the Timekeeping Mode, hold A for about two seconds until the seconds flash.
  2. Press C once to reach the DST setting.
  3. Press D to switch between ON (summer time) and OFF (standard time).
  4. Press A to leave. The DST indicator shows while summer time is on.

Good to know

If the time is off by one hour, you may need to change this setting, not the time.

From Casio's guide, page E-14

Home City

  1. In the Timekeeping Mode, hold A for about two seconds until the seconds flash.
  2. Press C twice to reach the city code.
  3. Press D to go east or B to go west until your city code shows.
  4. Press A to leave.

Good to know

If the time is off by several hours, the Home City may be wrong.

From Casio's guide, page E-12

Set an alarm

  1. Press C until the Alarm Mode shows (AL1 to AL4, SNZ for the snooze alarm, SIG for the hourly signal).
  2. Press D to pick the alarm.
  3. Hold A for about two seconds until the alarm time flashes.
  4. Press D or B to set the hour, press C to move to the minutes, then D or B again.
  5. Press A to leave.

Good to know

In the Alarm Mode, press A on an alarm to turn it on or off; hold D to test the sound.

In 12-hour format, watch the P indicator: it marks p.m.

From Casio's guide, page E-22

Realign the hands

  1. In the Timekeeping Mode, hold D for about three seconds until the time flashes.
  2. Press D to move the hands forward 20 seconds at a time; hold D for fast.
  3. For a long move, hold D until the hands run fast, then press B to lock the fast movement; press any button to stop it.
  4. When the hands match the digital time, press A to leave.

Good to know

On leaving, the watch nudges the minute hand slightly to match its internal seconds.

From Casio's guide, page E-31

Light

  1. Leave any setting screen first: the light does not work while digits are flashing.
  2. Press B in any mode to light the display.
  3. Expect it to switch off on its own when an alarm starts to sound.

From Casio's guide, page E-33

Button beep

  1. Hold C for about three seconds, until the tone sounds.
  2. Each time you do this, the button tone switches on or off.
  3. The mute indicator shows while the tone is off.

Good to know

Alarms, the hourly signal and other beepers still sound with the button tone off.

From Casio's guide, page E-34

Module 5338 specs

Type
quartz
Power
Approx. battery life: 2 years on SR726W X 2 · other watches that take SR726W x 2
Accuracy
±30 seconds per month
Functions
World time, Stopwatch, Timer, Alarm/hourly time signal, Light, Light color, Calendar, Mute feature, 12/24-hour format
Manual
Casio's operation guide for module 5338

Watches with the 5338