Watch Catalog

Casio module 5618

Quartz module. 5618 is the number engraved on the caseback of these watches, and Casio files its operation manual under it. 3 watches in the catalog run on it.

How to operate module 5618

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 B for at least two seconds and let go when the Home City name shows.
  2. Press C to step through the settings: Home City, summer time, 12/24-hour format, seconds, hour, minute, date format, year, month, day, then the other options.
  3. On the seconds, press D to reset them to 00.
  4. On the hour, minute, year, month or day, use A and D to change the value.
  5. On the 12/24-hour format, press D to switch between 12H and 24H.
  6. Press B to leave the setting screen.

Good to know

Resetting the seconds between 30 and 59 adds one minute.

Paired with a phone, the watch takes the time from the CASIO WATCHES app; the manual setting is for when there is no connection.

From Casio's guide, page 5

Daylight saving time

  1. In the Timekeeping Mode, hold B for at least two seconds and let go when the Home City name shows.
  2. Press C once to reach the summer time setting.
  3. Press D to cycle through AUTO, OFF (standard time) and ON (summer time).
  4. Press B to leave the setting screen.

Good to know

Every city starts out on AUTO, which switches between standard and summer time by itself.

From Casio's guide, page 5

Home City

  1. In the Timekeeping Mode, hold B for at least two seconds and let go when the Home City name shows.
  2. Use A and D to change the Home City.
  3. Press B to leave the setting screen.

Good to know

In the World Time Mode, holding A for at least two seconds swaps the Home City time and the World Time.

From Casio's guide, page 4

Set an alarm

  1. Press C until the Alarm Mode shows.
  2. Press D until the alarm you want (AL1 to AL5) shows.
  3. Hold B for at least two seconds and let go when the hour digits flash.
  4. Use A and D to set the hour (in 12-hour format, P marks p.m.), press C, then set the minutes the same way.
  5. Press B to leave the setting screen.

Good to know

In the Alarm Mode, press B to turn the shown alarm or the hourly signal (SIG) on or off.

The alarm beeps for 10 seconds; any button stops it.

From Casio's guide, page 12

Realign the hands

  1. In the Timekeeping Mode, hold B for at least five seconds and let go when 00 flashes.
  2. If the mode hand is not at 00, use A and D to move it there.
  3. Press C, then use A and D to put the hour and minute hands at 12 o'clock.
  4. Press B to leave the setting screen.

Good to know

Strong magnetism or a knock can make the hands disagree with the digital time; this puts them back.

The hour hand moves along with the minute hand, so only the minute hand is moved directly.

From Casio's guide, page 14

Light

  1. Press A to light the face.
  2. To change the duration: in the Timekeeping Mode hold B for at least two seconds until the Home City name shows, then press C 14 times to show LIGHT.
  3. Press D to choose 1 (1.5 seconds) or 3 (3 seconds).
  4. Press B to leave the setting screen.

Good to know

Auto Light (on when the watch is tilted 40 degrees or more toward your face) is switched ON or OFF the same way, 13 presses of C in, with D.

Auto Light left on switches itself off after about six hours.

From Casio's guide, page 3

Button beep

  1. In the Timekeeping Mode, hold B for at least two seconds and let go when the Home City name shows.
  2. Press C 12 times: KEY♪ or MUTE flashes.
  3. Press D to choose KEY♪ (beep on) or MUTE (beep off).
  4. Press B to leave the setting screen.

Good to know

Alarms and the timer still sound with the beep off.

From Casio's guide, page 15

Stopwatch

  1. Press C until the Stopwatch Mode shows.
  2. Press D to start and stop; D again carries on.
  3. For a lap time, press B while it runs; the lap shows for eight seconds.
  4. When it is stopped, press B to reset it to zero.

Good to know

It runs up to 24 hours, in 1/1000 seconds for the first hour.

Up to 200 lap times are kept; the CASIO WATCHES app shows them.

From Casio's guide, page 10

Countdown timer

  1. Press C until the Timer Mode shows.
  2. Hold B for at least two seconds and let go when the hour digits flash.
  3. Use A and D to set the hours, press C for the minutes, and C again for the seconds.
  4. Press B to leave the setting screen.
  5. Press D to start, pause and carry on.
  6. To go back to the start time, pause it and press B.

Good to know

The start time can be set in one-second steps up to 24 hours.

It beeps for 10 seconds at zero; any button stops the beep.

From Casio's guide, page 11

Reset

  1. In the Timekeeping Mode, hold B for at least two seconds and let go when the Home City name shows.
  2. Press C three times so the seconds flash.
  3. Hold A for at least five seconds and let go when RESET stops flashing.

Good to know

This returns the watch settings, stopwatch, timer and alarms to factory defaults and also deletes the pairing with the phone.

From Casio's guide, page 15

Module 5618 specs

Type
quartz
Power
Approx. battery life: 2 years on CR2016 · other watches that take CR2016
Accuracy
±15 seconds per month (with no mobile link function)
Functions
World time, Stopwatch, Timer, Alarm/hourly time signal, Light, Light color, Calendar, Mute feature, 12/24-hour format, Date/month display swapping, Day display, Hand shift feature, Flight mode, Schedule beeper on/off
Manual
Casio's operation guide for module 5618

Watches with the 5618