CASIO Module No. 3247

General Information and Care

This section provides essential information for the proper use and care of your Casio watch.

Handling and Environment

• Avoid exposing the watch to extreme temperatures.
• Handle the watch with care; avoid rough treatment and dropping.
• Do not fasten the watch strap too tightly; a finger should fit between the strap and your wrist.
• Store the watch in a dry place when not in use.
• Avoid contact with gasoline, cleaning solvents, spray cleaners, adhesives, paints, or other chemicals, as these can damage the watch's gaskets, case, and finish.

Cleaning

• Use a dry, soft cloth, or a soft cloth dampened with a water-and-mild-neutral-detergent solution to clean the watch and strap.
• For straps with silk-screened designs, be careful during cleaning to avoid damaging the patterns.

Battery

The battery installed at the factory is for initial testing and may discharge during shipping and storage. If you notice signs of insufficient power (dim display), replace the battery at an authorized CASIO service center or dealer.

Water Resistance

Watches are classified by water resistance levels (I through V). Consult the table below to determine the appropriate usage for your watch's rating.

General Water Resistance Precautions:

• Never press buttons underwater.
• Never move the crown underwater.
• Never unscrew the crown underwater.
• If the watch is exposed to salt water, rinse it thoroughly and dry it.
• Do not wear a watch with a leather strap while swimming. Avoid prolonged contact of leather straps with water.

Notes:

1. Level I watches are not water resistant. Avoid any contact with water.
2. WR (Water Resistant) means the model is waterproof according to ISO 2281. Brief contact with water will not cause problems.
3. 5 Bar (50 meters) water resistance means the watch can withstand water pressure of that magnitude and can be used while showering and brief swimming.
4. 10 Bar (100 meters) water resistance means the watch can be used during normal swimming and snorkeling.
5. 20 Bar (200 meters) water resistance means the watch can be used for scuba diving (excluding depths requiring a helium-oxygen mixture).

Plastic Straps

A white powdery substance on a plastic strap is harmless and can be removed by wiping with a cloth. Sweat or moisture on a plastic strap, or storage in high humidity, can damage or crack the strap. Wipe the strap clean with a soft cloth to ensure a long service life.

Fluorescent Cases and Straps

Prolonged exposure to direct sunlight can cause fluorescent colors to fade. Prolonged contact with moisture can also cause fading; wipe off any moisture as soon as possible. Contact with other wet surfaces can cause color transfer. Ensure fluorescent surfaces are dry and avoid contact with other surfaces.

CASIO COMPUTER CO., LTD. is not responsible for any damage that may occur from the use of this watch.

About This Manual

Your watch may have a display with either dark digits on a light background or light digits on a dark background. Examples in this manual show dark digits on a light background. Buttons used for operations are labeled with letters as shown in the diagrams.

Each section provides necessary information for user operations in each mode. Additional details are in the 'Reference' section.

Overview of Operating Modes

Press C to cycle through modes in the following sequence: Timekeeping Mode, World Time Mode, Stopwatch Mode, Timer Mode, Alarm Mode, DST Mode.

In any mode (unless setting values), press B for backlight.

Mode Transitions

Diagram showing transitions:

• Timekeeping Mode (A) -> World Time Mode (A)
• World Time Mode (A) -> Stopwatch Mode (C)
• Stopwatch Mode (C) -> Timer Mode (C)
• Timer Mode (C) -> Alarm Mode (C)
• Alarm Mode (C) -> DST Mode (C)
• DST Mode (C) -> Timekeeping Mode (C)

Button Identification:

Diagram showing buttons A, B, C, D.

Display Indicators

The display has graphical areas A and B.

Graphical Area A:

• PM Indicator
• DST Indicator
• Day of the week (e.g., THU)
• Date (e.g., 6-30)
• Time (e.g., 10:58:50)

Graphical Area B:

• Auto EL Indicator (Indicator for automatic backlight cutoff)
• SNZ Indicator (Snooze alarm indicator)
• ALM Indicator (Alarm indicator)
• MUTE Indicator (Sound off indicator)
• Hourly Signal Indicator

The day of the week is displayed automatically with the date (year, month, day) according to your settings.

Timekeeping Mode

Use Timekeeping Mode to set and view the current time and date.

Setting Time and Date

Important: Time in Timekeeping Mode and World Time Mode are linked. Ensure your current time zone is selected before setting the time and date.

1. In Timekeeping Mode, press and hold button A until the city code for your current location appears.
2. Press C to cycle through settings: City Code, DST, Seconds, Year, Month/Day.
3. When the parameter to be changed is flashing, use buttons D and B to change it:
   • Seconds: Press D to reset to 00.
   • DST: Press D to switch between DST (ON) and Standard Time (OFF).
   • City Code: Press D (East) or B (West) to change.
   • Hour/Minute: Press D (+) or B (-) to change.
   • Year: Press D (+) or B (-) to change.
   • Month/Day: Press D (+) or B (-) to change.
4. Press A twice to exit the setting screen.

Refer to the 'City Code Table' for city code information. Refer to 'Daylight Saving Time (DST)' for DST settings.

Daylight Saving Time (DST)

DST advances the time by one hour. Not all countries observe DST.

To switch between DST and Standard Time in Timekeeping Mode:

1. In Timekeeping Mode, press A until the seconds start flashing (entering setting mode).
2. Press C to select the DST setting.
3. Press D to toggle between DST (ON) and Standard Time (OFF).
4. Press A twice to exit.

The DST indicator on the display shows that DST is active.

12/24-Hour Format Switching

In Timekeeping Mode, press D to switch between 12-hour and 24-hour formats.

• 12-Hour Format: 'PM' indicator appears to the left of the hour for times from noon to 11:59 PM. No indicator for AM.
• 24-Hour Format: Time is displayed from 0:00 to 23:59 without indicators.

The selected 12/24-hour format applies to all modes.

World Time Mode

World Time Mode displays the current time in 48 cities (29 time zones) worldwide. All operations in this section are performed in World Time Mode.

Viewing Time in a Different City

In World Time Mode, press D (East) or B (West) to select the city whose time you want to view.

Refer to the 'City Code Table' for more information. If a city's time is incorrect, check the Timekeeping Mode's current location city code and make necessary adjustments.

Switching Between Standard and DST in World Time Mode

To switch between standard and DST for a selected city code:

1. In World Time Mode, press D to display the city code whose DST setting you want to change.
2. Press and hold button A for about one second to toggle between DST (DST indicator appears) and Standard Time (DST indicator disappears).

The DST indicator appears when DST is selected for the displayed city. Note that DST settings are specific to the displayed city code and do not affect other city codes.

You can also switch the home city's DST setting in World Time Mode, which will also apply to Timekeeping Mode.

Stopwatch Mode

The stopwatch measures elapsed time, split times, and two finishes. The display range is 59 minutes, 59.99 seconds. The stopwatch continues running even when you exit the mode.

Measuring Elapsed Time

• Start: Press D.
• Stop: Press D.
• Reset: Press A.

Split Time Measurement

• Start: Press D.
• Split: Press D.
• Release Split: Press D again.
• Reset: Press A.

When displaying split times, exiting Stopwatch Mode resets the split times and returns to elapsed time measurement.

Double Finish

Diagram showing sequence: Start (D) -> Split (D) -> First Runner Finishes (A) -> Second Runner Finishes (D) -> Display First Time (A) -> Display Second Time (A) -> Reset (A).

Auto-Start

The Auto-Start function initiates a 5-second countdown, after which the stopwatch automatically begins timing. A beep sounds during the last three seconds of the countdown.

To use Auto-Start:

1. In Stopwatch Mode, with all zeros displayed, press B. The 5-second countdown screen appears.
2. Press D to start the countdown.

Pressing D during the countdown immediately starts the stopwatch.

Timer Mode

The countdown timer can be set from one minute to 24 hours. A beep sounds when the countdown finishes. It features auto-repeat and a progress signal.

Setting the Countdown Timer

Before use, set the start time, auto-repeat, and progress signal.

To set the countdown timer:

1. In Timer Mode, press A until the start time flashes (entering setting mode).
2. Press C to cycle through settings: Start Time (Hours, Minutes), Auto-Repeat, Progress Signal.
3. When a setting flashes, use D and B to change it. To set start time to 24 hours, enter 0:00.
4. Press A to exit setting mode.

You can check current auto-repeat and progress signal settings anytime.

Auto-Repeat

When Auto-Repeat is ON, the countdown restarts automatically from the set time upon completion. When OFF, the countdown stops and displays the start time.

Pressing D during a countdown pauses it. Press D again to resume or A to return to the initial start time.

Countdown Signals

The watch provides audible signals during countdown:

• End of Countdown Signal: Sounds when the countdown reaches zero. If the progress signal is OFF, it sounds for about 10 seconds or until any button is pressed. If ON, it sounds for about one second.
• Progress Signal: If ON, four short beeps sound every minute for the last five minutes. For the last 30 seconds, four short beeps sound. During the last 10 seconds, a short beep sounds every second. If the countdown is six minutes or longer, a short beep sounds every second for the first five minutes, followed by four short beeps for the last five minutes.

Alarm Mode

You can set up to three multi-function alarms (AL1, AL2, SNZ) with hour, minute, month, and day settings. When an alarm is set, it sounds at the designated time. One alarm is a snooze alarm (SNZ), and the others are single-time alarms. An hourly chime (SIG) is also available.

Alarm Types

• Daily Alarm: Set hour and minute; alarm sounds daily at the set time.
• Specific Day Alarm: Set month, day, hour, and minute; alarm sounds on the specified day at the set time.
• Monthly Alarm: Set month, hour, and minute; alarm sounds daily at the set time during the specified month.
• Monthly (Day) Alarm: Set day, hour, and minute; alarm sounds monthly at the set time on the specified day.

Setting an Alarm Time

1. In Alarm Mode, press D to cycle through alarm screens (AL1, AL2, SNZ, SIG).
2. Select the desired alarm (AL1 or AL2 for single-time, SNZ for snooze). Press A until the hour digits flash (entering setting mode). The alarm is automatically turned ON.
3. Press C to cycle through settings: Hour, Minute, Month, Day.
4. When a setting flashes, use D (+) and B (-) to change it. For 12-hour format, set PM correctly. To set an alarm without a specific month or day, select "-".
5. Press A to exit setting mode.

Alarm Operation

When the set time is reached, the alarm sounds for 10 seconds, regardless of the mode. The SNZ alarm sounds seven times at five-minute intervals or until turned off. The alarm and hourly chime sound according to the Timekeeping Mode time.

Press any button to stop an alarm. Pressing any button during the five-minute intervals between SNZ alarms will also turn off the alarm.

Checking an Alarm: In Alarm Mode, press D to sound the alarm for testing.

Turning Alarms ON/OFF

1. In Alarm Mode, press D to select the alarm.
2. Press A to turn the alarm ON or OFF. An indicator (ALM, SNZ) appears when the alarm is ON.

The alarm indicator is displayed in all modes to show the alarm is active. The indicator flashes when the alarm is sounding.

Turning Hourly Chime ON/OFF

1. In Alarm Mode, press D to select the hourly chime (SIG).
2. Press A to turn it ON or OFF. An indicator appears when ON.

Backlight

The watch features an electro-luminescent panel for illumination in darkness. The Auto EL function illuminates the backlight when the watch is tilted towards your face.

Manual Backlight

In any mode, press B to turn on the backlight. This works regardless of the Auto EL setting.

Setting Backlight Duration

1. In Stopwatch Mode, press A until the seconds flash (entering setting mode).
2. With seconds flashing, press B to select between 1.5 seconds (+) or 3 seconds (*).
3. Press A twice to exit.

Auto EL (Automatic Illumination)

The Auto EL function illuminates the backlight when the watch is tilted towards your face (angle > 40 degrees from parallel to the ground).

Precautions for Auto EL:

• Ensure you are in a safe place when using Auto EL. Accidental activation can distract you, especially during activities like cycling, potentially causing accidents.
• Wear the watch on the outside of your wrist. Wearing it on the inside may cause accidental activation and drain the battery. If you prefer wearing it on the inside, turn Auto EL OFF.
• The backlight will not activate if the watch face is tilted less than 15 degrees.
• Static electricity or magnetic forces can interfere with Auto EL. If it doesn't activate, return the watch to a neutral position and try again.
• A faint clicking sound may be heard when tilting the watch; this is normal mechanical operation of the Auto EL function.
• The Auto EL function turns off automatically after approximately six hours of inactivity to save battery.

To turn Auto EL ON/OFF: In Stopwatch Mode, press and hold B for about three seconds to toggle the Auto EL indicator ON or OFF.

Reference

This section provides detailed information and technical notes.

Graphical Areas

The watch has two graphical areas, A and B, which display information depending on the current mode.

Flashing Signal

When the flashing signal is ON, the backlight activates with alarms, hourly chimes, countdown signals, and auto-start. The 'SYNC' indicator appears briefly when entering Stopwatch, Timer, or Alarm modes.

To turn Flashing Signal ON/OFF: In Stopwatch Mode, press and hold A for about three seconds to toggle the indicator ON or OFF. Press C eight times, then D to connect (SYNC) or disconnect (-).

Button Operation Tone

The button operation tone sounds with each button press. It can be turned OFF.

To turn Button Operation Tone ON/OFF: In any mode (except setting mode), press C to toggle the tone ON (no MUTE indicator) or OFF (MUTE indicator appears). Pressing C also changes the watch mode.

Technical Specifications

• Accuracy: ±15 seconds per month at normal temperature.
• Timekeeping: Hours, minutes, seconds, AM/PM, month, day, day of the week.
• Time Format: 12-hour and 24-hour.
• Calendar System: Fully automatic calendar programmed from 2000 to 2099.
• Other: Local time zone (adjustable from -12.0 to +14.0 in 0.5-hour increments); Daylight Saving Time (DST)/Standard Time.
• Alarms: 5 multi-function alarms (four single-time, one snooze); Hourly chime.
• Timer Mode: Unit: 1 second. Input range: 1 minute to 24 hours (in 1-minute and 1-hour increments). Other: Auto-repeat, progress signal.
• Stopwatch Mode: Unit: 1/100 second. Measuring limits: 23:59'59.99". Measurement modes: Elapsed time, split time, two finishes.
• Backlight: Electro-luminescent panel, adjustable backlight duration, Auto EL.
• Other: Button operation tone (switchable), flashing signal.
• Battery: One lithium battery (Type: CR2025). Estimated life: Approx. 7 years for CR2025 (assuming 10 sec/day alarm use, 1 weekly timer use, 1 weekly stopwatch use, 1.5 sec backlight/day).

Automatic Return Features: If no button is pressed for two or three minutes in Alarm Mode, the watch automatically returns to Timekeeping Mode. If digits flash for two or three minutes without button input, the setting mode automatically cancels.

Scrolling: Buttons B and D are used to scroll through data. Holding them down usually increases scrolling speed.

Initial Screens: When entering modes like World Time or Alarm, the last viewed data is displayed.

Stopwatch Reset: Seconds from 30-59 reset to 00, incrementing minutes by 1. Seconds from 00-29 reset to 00 without affecting minutes.

UTC: Coordinated Universal Time is a global scientific standard for time measurement, based on atomic clocks. It is adjusted with leap seconds as needed.

Backlight Precautions: The electro-luminescent panel's brightness decreases over time. Backlight may be difficult to see in direct sunlight. A faint sound may occur during backlight activation, which is normal. Backlight turns off automatically when any alarm sounds. Frequent backlight use drains the battery.

City Code Table

This table lists cities and their corresponding Universal Time Coordinated (UTC) offsets.

Data as of December 2009. World time rules (UTC offsets and DST) vary by country. Note: Venezuela's UTC offset changed from -4 to -4.5 in December 2007; this watch uses the older -4 offset for CCS (Caracas). Russia abolished DST in June 2011; be mindful of this when setting time.

Product Information

Product Name: Electronic Wristwatch / Electro-mechanical Quartz Wristwatch (Men's/Women's)

Brand: CASIO

Manufacturer: CASIO COMPUTER Co., Ltd.

Manufacturer Address: 1-6-2, Hon-machi 1-chome, Shibuya-ku, Tokyo 151-8543, Japan

Importer: LLC "Casio", 127015, Russia, Moscow, ul. Butyrskaya, d. 77

Warranty Period: 1 year

Address for Authorized Claims: As specified in the warranty card.