Watch Catalog

Casio module 5657

Solar powered module. 5657 is the number engraved on the caseback of these watches, and Casio files its operation manual under it. 1 watch in the catalog runs on it.

How to operate module 5657

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 at least two seconds and release it when the Home City name shows.
  2. Press C until the setting you want flashes: Home City, summer time, seconds, hours, minutes, year, month, day, 12/24-hour format, date format, day of week language, button tone, light duration, auto adjust, then Power Saving.
  3. On the seconds, press D to reset them to 00.
  4. On any other setting, press B or D to change it.
  5. Press A to leave the setting screen.
  6. For 12/24-hour format: open the settings as above, press C eight times until 12H or 24H flashes, press D to switch, then A.

Good to know

While paired with a phone running CASIO WATCHES, the watch sets its time from the phone by itself, four times a day. In the Timekeeping Mode, press D to connect and set the time now.

Resetting the seconds between 30 and 59 adds one minute.

Hold C for at least one second in any mode to go back to the Timekeeping Mode.

From Casio's guide, page 15

Summer time

  1. In the Timekeeping Mode, hold A for at least two seconds and release it when the Home City name shows.
  2. Press C: the summer time setting flashes.
  3. Press D to step through AUTO (switches by itself), OFF (always standard time) and ON (always summer time).
  4. Press A to leave.

Good to know

AUTO is the default for every city and can stay on even where summer time is not used.

The summer time setting can also be changed from CASIO WATCHES while connected.

From Casio's guide, page 15

Home City

  1. In the Timekeeping Mode, hold A for at least two seconds and release it when the Home City name shows.
  2. Press B or D to choose your city.
  3. Press A to leave.

Good to know

In the World Time Mode, press A and B together to swap the Home City time with the World Time.

From Casio's guide, page 15

Set an alarm

  1. Press C until the Alarm Mode shows (ALM, the last mode before the Timekeeping Mode).
  2. Press D until the alarm you want shows, AL1 to AL5.
  3. Hold A for at least two seconds and release it when the hour flashes.
  4. Press B or D to set the hour, then C to go to the minutes and B or D to set them.
  5. Press A to leave the setting screen.
  6. To switch an alarm on or off, select it with D in the Alarm Mode and press A. ALM shows while any alarm is on.
  7. For the hourly signal, press D until SIG shows and press A to switch it on or off.
  8. Hold C for at least one second to go back to the Timekeeping Mode.

Good to know

In 12-hour format, mind a.m. or p.m.: P marks p.m.

An alarm sounds for 10 seconds; press any button to stop it.

Alarms are silent while the battery is low or at the deeper level of power saving.

From Casio's guide, page 17

Realign the hands

  1. In the Timekeeping Mode, hold A for at least five seconds and release it when SUB flashes.
  2. If the mode hand is not at 9 o'clock, press B or D to move it there.
  3. Press C, then if the hour and minute hands are not at 12 o'clock, press B or D to move them there.
  4. Press A to finish.

Good to know

Strong magnetism or a knock can make the hands differ from the digital time.

The hands can also be corrected from CASIO WATCHES while connected.

From Casio's guide, page 22

Light

  1. Press B to light the display.
  2. To change the duration: in the Timekeeping Mode hold A for at least two seconds until the Home City name shows, then press C 12 times until LIGHT shows.
  3. Press D to choose LT1 (1.5 seconds) or LT3 (three seconds), then A to leave.

Good to know

The light goes off when an alarm sounds and does not work while the hands move fast.

To move the hands out of the way of the display, hold B and press C; do it again, or press C, to bring them back.

From Casio's guide, page 9

Button beep

  1. In the Timekeeping Mode, hold A for at least two seconds and release it when the Home City name shows.
  2. Press C 11 times: KEY♪ or MUTE flashes.
  3. Press D to choose KEY♪ (beep on) or MUTE (beep off), then A to leave.

Good to know

Alarm and timer tones still sound with the beep off.

From Casio's guide, page 22

Stopwatch

  1. Press C until the Stopwatch Mode shows (STW, after the World Time Mode).
  2. Press D to start, D to stop, and D again to carry on.
  3. When it is stopped, press A to reset it to zero.
  4. For split times, press A at zero so SPL shows, then D to start; each A shows the time so far for about eight seconds. D stops, A resets.
  5. For lap times, press A at zero until LAP shows, then use it the same way; each A shows the time since the last lap.

Good to know

It counts in 1/100 seconds for the first hour, then in seconds, up to 24 hours.

From Casio's guide, page 20

Countdown timer

  1. Press C until the Timer Mode shows (TMR, after the Stopwatch Mode).
  2. If a countdown is running, press D to pause it, then A to reset it to the start time; if it is paused, press A.
  3. Hold A for at least two seconds and release it when the minutes flash.
  4. Press B or D to set the minutes, then C to go to the seconds and B or D to set them.
  5. Press A to leave the setting screen.
  6. Press D to start, D to pause, D to carry on; when paused, press A to reset.

Good to know

The start time is up to 60 minutes in one-second steps; set 00'00 for 60 minutes.

At zero a beeper sounds for 10 seconds; press any button to stop it.

From Casio's guide, page 21

Reset

  1. In the Timekeeping Mode, hold A for at least two seconds and release it when the Home City name shows.
  2. Press C twice: the seconds flash.
  3. Hold B for at least seven seconds; ALL and RESET take turns, release it when only RESET shows.
  4. Press A to leave the setting screen.

Good to know

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

From Casio's guide, page 23

Module 5657 specs

Type
solar
Power
Tough Solar (Solar powered)
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, Energy saving feature, Battery display/alert, Run time, 12/24-hour format, Date/month display swapping, Day display, Hand shift feature
Manual
Casio's operation guide for module 5657

Watches with the 5657