Watch Catalog

Casio module 3570

Quartz module. 3570 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 3570

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 until the seconds flash.
  2. Press B to step through the settings: seconds, hour, minute, year, month, then day.
  3. On the seconds, press C to reset them to 00.
  4. On any other setting, press C to count up (hold for fast); mind the P indicator for p.m.
  5. Press A to go back to the Timekeeping Mode.

Good to know

Resetting the seconds while they count 30 to 59 adds one minute; from 00 to 29 the minutes stay as they are.

The day of the week follows the date by itself; the year runs from 2000 to 2099.

In the Timekeeping Mode, press C to switch between 12-hour and 24-hour format; the format applies in all modes.

From any other mode, hold B for about one second to go back to the Timekeeping Mode.

The watch saves the settings and leaves the setting screen by itself after two or three minutes without a button press.

From Casio's guide, page EN-9

Dual Time

  1. In the Timekeeping Mode, press B four times: the Dual Time Mode shows (DT), after the Stopwatch Mode.
  2. Hold A until the hour flashes.
  3. Press C to count up the hour, press B to move to the minutes and set them with C; mind the P indicator for p.m.
  4. Press A to stop the flashing.
  5. Hold B for about one second to go back to the Timekeeping Mode.

Good to know

The watch has no Home City list; the Dual Time is set as an hour and minute by hand, and its seconds follow the Timekeeping Mode.

From Casio's guide, page EN-25

Set an alarm

  1. In the Timekeeping Mode, press B once: the Alarm Mode shows (AL).
  2. Press C until the alarm you want shows, 1 to 5.
  3. Hold A until the hour flashes; this also switches the alarm on.
  4. Press B to step through hour, minute, month and day, and press C to count each one up; mind the P indicator for p.m.
  5. For an alarm every day, set the month to - (between 12 and 1) and the day to - - (between the last day and 1).
  6. Press A to stop the flashing.
  7. Hold B for about one second to go back to the Timekeeping Mode.

Good to know

Leave out the month for a monthly alarm, or the day for an alarm every day of one month; set both for an alarm on one date.

The alarm sounds for 10 seconds in any mode; press any button to stop it.

To switch Alarm 2 to 5 or the hourly time signal (:00) on or off, select it with C in the Alarm Mode and press A.

Alarm 1 has a snooze: select it and press A to step through alarm on, snooze alarm on (SNZ) and alarm off. The snooze repeats every five minutes, seven times in all, until you turn it off.

To test the alarm, hold C in the Alarm Mode.

From Casio's guide, page EN-14

Light

  1. Press L in any mode to light up the display for about one second.

Good to know

The light goes off by itself when an alarm sounds.

From Casio's guide, page EN-26

Stopwatch

  1. In the Timekeeping Mode, press B until the Stopwatch Mode shows (ST), after the Alarm and Timer Modes.
  2. Press C to start, C to stop, and C again to carry on.
  3. For a split time, press A while it runs (SP shows); press A again to go back to the running time.
  4. When it is stopped, press A to reset it.
  5. Hold B for about one second to go back to the Timekeeping Mode.

Good to know

It counts in 1/100 seconds up to 23 hours 59 minutes 59.99 seconds, then starts again from zero until you stop it.

For two finishers: start with C, press A at the first finisher and C at the second; the first time shows, press A to see the second, and A again to reset.

It keeps running when you change to another mode.

From Casio's guide, page EN-24

Countdown timer

  1. In the Timekeeping Mode, press B twice: the Timer Mode shows (TR).
  2. If the timer is running, press C to pause it, then A to reset it to the start time.
  3. Hold A until the hours flash.
  4. Press C to count up the hours, press B to move to the minutes and set them with C.
  5. Press A to stop the flashing.
  6. Press C to start; C pauses and resumes it. When it is paused, press A to reset it to the start time.

Good to know

The start time can be 1 minute to 24 hours; set 0:00 for 24 hours.

At zero it sounds for 10 seconds; press any button to stop it. The timer then goes back to its start time.

For auto-repeat, press L while the start time is flashing: A.RPT shows when it is on. With auto-repeat the countdown starts again by itself at zero.

The countdown keeps running when you change to another mode.

From Casio's guide, page EN-21

Module 3570 specs

Type
quartz
Power
Approx. battery life: 10 years on CR2032 · other watches that take CR2032
Accuracy
±30 seconds per month
Functions
World time, Stopwatch, Timer, Alarm/hourly time signal, Light, Light color, Calendar, 12/24-hour format
Manual
Casio's operation guide for module 3570

Watches with the 3570