Watch Catalog

Casio module 3507

Quartz module. 3507 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 3507

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 C to step through the settings: seconds, DST, hour, minutes, year, month, then day.
  3. On the seconds, press D to reset them to 00.
  4. On the DST setting, press D to switch between On (summer time) and OF (standard time).
  5. On the hour, minutes, year, month or day, press D to go up and B to go down.
  6. Press A twice to leave the setting screen: the first press shows the UTC differential setting, the second one leaves.

Good to know

Resetting the seconds between 30 and 59 adds one minute.

To switch between 12-hour and 24-hour format, press D in the Timekeeping Mode. In 12-hour format, A marks a.m. and P marks p.m.

The year can be set from 2000 to 2099. The day of the week follows the date by itself.

Set the time, date and Home Site data correctly before using the Moon and tide data.

From Casio's guide, page EN-10

Daylight saving time

  1. In the Timekeeping Mode, hold A until the seconds flash.
  2. Press C once: the DST setting shows.
  3. Press D to switch between On (summer time) and OF (standard time).
  4. Press A twice to leave. The DST indicator shows while summer time is on.

Good to know

The Dual Time Mode has its own DST setting.

From Casio's guide, page EN-13

Home Site

  1. In the Timekeeping Mode, hold A until the seconds flash.
  2. Press A again: the UTC differential setting shows.
  3. Press D (+) or B (-) to set the UTC offset of the place where you use the watch.
  4. Press C to step on to the longitude value, east/west longitude, then the lunitidal interval hours and minutes; switch E and W with D, and change the others with D (+) and B (-).
  5. Press A to leave the setting screen.

Good to know

The UTC offset runs from -12.0 to +14.0 in half-hour steps (-11.0 to +15.0 while DST is on). The Moon phase, tide graph and Moon/Tide data are not shown correctly unless the Home Site data is right.

The factory setting is Tokyo: UTC +9.0, East 140 degrees, lunitidal interval 5:20. It returns after a battery change.

Dual Time: press C until the Dual Time Mode shows (after the Alarm Mode), hold A until the DST setting flashes, switch it with D, press C to move to the hour and minutes and set them with D and B, then press A. Its seconds follow the Timekeeping Mode.

From Casio's guide, page EN-16

Set an alarm

  1. In the Timekeeping Mode, press C until the Alarm Mode shows, after the Timer Mode.
  2. Press D until the alarm you want shows, 1 to 3.
  3. Hold A until the hour flashes; this also switches the alarm on.
  4. Press C to step through hour, minutes, month and day; press D to go up and B to go down. Mind A for a.m. and P 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 of the month and 1).
  6. Press A to leave the setting screen.
  7. Press C until the Timekeeping Mode shows.

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 or 3 or the hourly time signal (:00) on or off, select it with D in the Alarm Mode and press A.

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

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

From Casio's guide, page EN-31

Light

  1. Press B in any mode to light up the display (not while a setting screen shows).
  2. To change the duration: in the Timekeeping Mode, hold A until the seconds flash, then press B to switch between about 1.5 seconds and 3 seconds.
  3. Press A twice to leave the setting screen.

Good to know

The light goes off by itself when an alarm sounds.

Frequent use of the light runs down the battery.

From Casio's guide, page EN-39

Button beep

  1. In any mode (not while a setting screen shows), hold C to switch the button tone on or off.
  2. Holding C also changes the mode; press C until the Timekeeping Mode shows.

Good to know

The mute indicator shows in all modes while the button tone is off.

The alarms, the hourly time signal and the timer still sound when the button tone is off.

From Casio's guide, page EN-45

Stopwatch

  1. In the Timekeeping Mode, press C until the Stopwatch Mode shows, after the Moon/Tide Data Mode.
  2. Press D to start, D to stop, and D again to carry on.
  3. For a split time, press A while it runs (SPL shows); press A again to go back to the running time.
  4. When it is stopped, press A to reset it.
  5. Press C until the Timekeeping Mode shows.

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 D, press A at the first finisher and D at the second; press A to see the second time, 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 C until the Timer Mode shows, after the Stopwatch Mode.
  2. If the timer is running, press D to pause it, then A to reset it to the start time.
  3. Hold A until the hours flash.
  4. Press C to step through hours, minutes and auto-repeat; press D to go up and B to go down, and on auto-repeat press D to switch between On and OF.
  5. Press A to leave the setting screen.
  6. Press D to start; D 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 the alarm sounds for 10 seconds; press any button to stop it. Without auto-repeat the timer then goes back to its start time; with auto-repeat it starts again by itself.

The countdown keeps running when you change to another mode.

Frequent use of auto-repeat and the alarm can run down the battery.

From Casio's guide, page EN-25

Module 3507 specs

Type
quartz
Power
Approx. battery life: 10 years on CR2025 · other watches that take CR2025
Accuracy
±30 seconds per month
Functions
World time, Moon data, Tide graph, Stopwatch, Timer, Alarm/hourly time signal, Light, Light color, Calendar, Mute feature, 12/24-hour format
Manual
Casio's operation guide for module 3507

Watches with the 3507