Casio 5612 5613 Operation Guide

About This Manual

This manual provides information for operating your Casio watch. Digital display text may appear as dark figures on a light background or light figures on a dark background; sample displays use dark figures on a light background. Button operations are indicated by letters (A, B, C, D). Illustrations are for reference only and may differ slightly from the actual product. Each section covers operations for specific modes, with further details in the "Reference" section. For long-term service, carefully follow instructions under "Operating Precautions" and "User Maintenance."

General Guide

Press the C button to change between modes. In any mode (except a setting mode), press the B button to illuminate the watch face.

The watch has several modes: Timekeeping, Stopwatch, Alarm, Countdown Timer, and World Time. These are accessed by pressing the C button.

Timekeeping

The Timekeeping Mode allows adjustment of the Home Time city, date, and time. The analog time is synchronized with the digital time and adjusts automatically. If analog and digital times do not match, use the "To adjust home positions" procedure (page E-44). Pressing the D button in Timekeeping Mode toggles the digital display between Home City Date and Home City Time.

To set the digital time and date:

1. In Timekeeping Mode, press and hold A for at least three seconds until the city code flashes. This enters the setting mode.

2. Use D (east) and B (west) to select your Home City code. Ensure your Home City is set correctly before other settings.

3. Press C to cycle through settings: City Code, DST, 12/24-Hour Format, Seconds, Hour, Minutes, Day, Month, Year, Illumination Duration.

4. When a setting flashes, use D or B to change it. For example, use D/B to change city code, press D to toggle DST (on/OFF), press D to toggle illumination duration (LT1 for 1.5 seconds, LT3 for 3 seconds).

5. Press A to exit setting mode. The day of the week is displayed automatically based on the date settings.

Daylight Saving Time (DST):

DST advances the time by one hour. Not all regions observe DST. To change the DST setting:

1. Enter setting mode by holding A for three seconds in Timekeeping Mode.

2. Press C to display the DST setting screen.

3. Use D to toggle DST between ON and OFF. The default is OFF.

4. Press A to exit. The DST indicator appears when DST is ON.

12-hour and 24-hour timekeeping:

The 12-hour format shows a PM indicator for times from noon to 11:59 PM. The 24-hour format displays times from 0:00 to 23:59 without a PM indicator. The selected format applies to all modes.

Stopwatch

The stopwatch measures elapsed time, lap times, and split times. It can also calculate and display speeds if a distance value is specified. The digital display range is up to 99 hours, 59 minutes, 59.999 seconds. Operations continue even when exiting the mode; upper digital segments flash to indicate an ongoing stopwatch operation.

Important: Ensure the speed hand is not moving before operating stopwatch buttons.

To specify a distance value:

1. In Stopwatch Mode, ensure the stopwatch is stopped and reset to zero (press A if needed).

2. Hold A for at least three seconds until the distance value flashes. This enters the distance value setting mode.

3. Press C to move the flashing cursor between the digits before and after the decimal point.

4. Use D (+) and B (-) to change the value. The range is 0.1 to 99.9.

5. Press A to exit.

How speed is indicated:

Speed is calculated based on the specified distance and elapsed time. Upper digital segments show the 100 unit (1000 appears for speeds over 1,000, MACH for speeds over 1,226). The speed hand indicates speeds less than 100 (even numbers only). Speed can be displayed from 0 to 1998; "OVER" is shown for speeds exceeding 1998.

Time Measurement:

You must specify either lap time (LAP) or split time (SPL) measurement before starting. Select SPL for total elapsed time measurement.

To specify lap time or split time readings:

1. In Stopwatch Mode, ensure the stopwatch is stopped and reset to zero.

2. Press A to toggle between LAP (lap times) and SPL (split times) display.

Elapsed Time Measurement:

Select SPL measurement and use D to Start, D to Stop. If a distance value is set, speed is shown when stopping. Pressing D again can resume the elapsed time.

Lap Time:

Lap time readings show time elapsed since the last lap reading. Specify lap distance for lap speed calculation, or total race distance for overall race speed. To set up for lap times, ensure LAP is displayed and the stopwatch is reset.

To perform a lap time measurement: Select LAP measurement and use D to Start, A to Lap, D to Stop, A to Reset. Lap times freeze for about 12 seconds. The lower display alternates between lap hour and lap number (#01 to #99).

Split Time:

Split time readings show time elapsed since the beginning of the measurement. Specify total race distance for speed calculation. To set up for split times, ensure SPL is displayed and the stopwatch is reset.

To perform a split time measurement: Select SPL measurement and use D to Start, A to Split, A to Split Release, D to Stop, A to Reset. Split times freeze for about 12 seconds or until released. The stopwatch continues internal elapsed time measurement.

To measure times with the stopwatch:

Summary of operations:

• Elapsed Time: D Start, D Stop, A Reset.
• Lap Time: D Start, A Lap, A Lap, D Stop, A Reset.
• Split Time: D Start, A Split, A Split Release, D Stop, A Reset.

Countdown Timer

The countdown timer can be set from one minute to 24 hours. An alarm sounds when the countdown reaches zero. Auto-repeat restarts the countdown automatically. All operations are performed in Countdown Timer Mode.

To use the countdown timer:

Press D in Countdown Timer Mode to start. The alarm sounds for 10 seconds or until stopped. If auto-repeat is OFF, it resets to the start value after the alarm. If ON, it restarts immediately. Press D to pause, D again to resume. To stop completely, pause first, then press A.

To configure countdown start time and auto-repeat settings:

1. In Countdown Timer Mode, hold A for three seconds until the hour setting flashes.

2. Press C to cycle through settings: Start Time (Hours), Start Time (Minutes), Auto-Repeat (On/Off).

3. Use D (+) and B (-) to change flashing values. Press D to toggle auto-repeat ON/OFF.

4. Press A to exit.

World Time

World Time displays the current time in 48 cities (29 time zones) worldwide, based on UTC offsets. It synchronizes with Timekeeping Mode time. If World Time appears incorrect, check Home City and Timekeeping Mode settings. All operations are in World Time Mode.

To view the current time in another time zone:

In World Time Mode, use D to scroll through city codes. The upper display shows the selected city's time. A PM indicator is shown for times from noon to midnight. Press A to display the date for about one second.

To toggle a city code time between Standard Time and Daylight Saving Time:

1. In World Time Mode, press D to select the city code.

2. Hold A for three seconds to toggle DST ON (DST indicator displayed) or OFF (indicator not displayed). DST can be set individually for each city (except UTC).

Swapping your Home City and World Time City:

This feature is useful for frequent travelers. It swaps your Home City with the currently selected World Time City. To perform the swap:

1. In World Time Mode, use D to select the desired World Time City.

2. Hold down both A and B until the watch beeps. The selected city becomes the new Home City, and the previous Home City becomes the World Time City.

Alarms

The watch features five daily alarms (AL1-AL4) and one snooze alarm (SNZ). An Hourly Time Signal (SIG) can be set to beep twice every hour. All operations are in Alarm Mode.

To set an alarm time:

1. In Alarm Mode, use D to select the alarm screen (AL1-AL4 for daily, SNZ for snooze).

2. Hold A for three seconds until the hour setting flashes, entering setting mode. This also turns the alarm ON automatically.

3. Press C to switch between hour and minute settings.

4. Use D (+) and B (-) to change the flashing value.

5. Press A to exit.

To turn an alarm on and off:

1. In Alarm Mode, use D to select the desired alarm.

2. Press A to toggle it ON or OFF. The alarm on indicator appears when an alarm is active in any mode. It flashes while the alarm is sounding.

To turn the Hourly Time Signal on and off:

1. In Alarm Mode, use D to select the SIG screen.

2. Press A to toggle it ON or OFF. The Hourly Time Signal on indicator is shown in all modes when active.

Alarm Operation:

Alarms sound for 10 seconds. The snooze alarm repeats every five minutes up to seven times. Alarms are based on Home City time. Press any button to stop an alarm. Certain operations during snooze intervals cancel the snooze sequence.

Illumination

An LED illuminates the watch face. The Auto Light Switch automatically turns on illumination when the watch is angled towards your face. The Auto Light Switch must be ON (indicated by the auto light switch on indicator) to function.

To illuminate the face manually:

Press B in any mode. This activates illumination regardless of the Auto Light Switch setting.

To specify the illumination duration:

1. In Timekeeping Mode, hold A until settings flash.

2. Press C nine times to display the illumination duration setting (LT1 or LT3).

3. Press D to toggle between LT1 (1.5 seconds) and LT3 (3 seconds).

4. Press A to exit.

About the Auto Light Switch:

When ON, illumination activates when the watch is tilted towards your face more than 40 degrees from parallel to the ground. Wear the watch on the outside of your wrist for proper function. Warning: Ensure safety when using the auto light switch, especially during activities. Turn OFF the auto light switch before operating vehicles to avoid distraction.

To turn the auto light switch on and off:

In Timekeeping Mode, hold B for three seconds to toggle the auto light switch ON or OFF. The indicator shows its status. The auto light switch turns off automatically after approximately six hours to conserve battery.

Hand Home Position Correction

The watch hands (speed, hour, minute) can be misaligned due to magnetism or impact. This procedure allows manual correction.

To adjust home positions:

1. In Timekeeping Mode, hold D for three seconds until "Sub" flashes.

2. Check the speed hand. If it's not at 50 (12 o'clock), use D to move it clockwise. Press C when correct.

3. Check the hour and minute hands. If they are not at 12 o'clock, use D (clockwise) and B (counterclockwise) to adjust them.

4. Press A to return to regular timekeeping. Hands will move to the current time, and the speed hand to 0.

Reference

This section provides detailed information and precautions.

Auto Return Features: If no operation is performed for 2-3 minutes in a setting mode, the watch exits automatically. In Alarm Mode, it returns to Timekeeping Mode after 2-3 minutes of inactivity.

High-Speed Movement: Holding D or B buttons often activates high-speed setting changes.

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

Timekeeping Notes: Seconds reset to 00 without changing minutes if the current count is 00-29; minutes increment if 30-59. Year can be set from 2000-2099. The full auto-calendar accounts for month lengths and leap years. Timekeeping is based on UTC offsets for selected cities.

Illumination Precautions: Illumination may be hard to see in direct sunlight. It turns off during alarms. Frequent use drains the battery.

Auto Light Switch Precautions: Avoid wearing the watch on the inside of the wrist. Illumination may not activate if the watch face is more than 15 degrees above or below parallel. Static electricity or magnetic force can interfere; try repositioning the watch. Illumination may have a slight delay. A faint clicking sound during movement is normal operation.

Specifications

Accuracy: ±15 seconds per month.

Digital Timekeeping: Hour, minutes, seconds, p.m., month, day, day of the week. 12/24-hour format. Full auto-calendar (2000-2099). Home City code (48 cities), Standard/DST.

Analog Timekeeping: Hour, minutes (hands move every 20 seconds).

Stopwatch: Unit: 1/1000 sec. Capacity: 99:59'59.999". Accuracy: ±0.0006%. Modes: Elapsed time, Lap time, Split time. Includes speed calculation.

Countdown Timer: Unit: 1 sec. Range: 1 min to 24 hours. Auto-repeat timing.

World Time: 48 cities (29 time zones). DST/Standard Time, Home City/World Time City swapping.

Alarms: 5 daily alarms (1 snooze alarm), Hourly Time Signal.

Illumination: LED, Auto Light Switch, selectable duration.

Battery: One lithium battery (Type: CR1220). Approximate life: 2 years (based on daily usage).

Specifications are subject to change without notice.

Operating Precautions

Water Resistance: Applies to watches marked WATER RESIST or WATER RESISTANT. Usage examples are provided for 5, 10, and 20 atmospheres of resistance, covering hand washing, rain, water-related work, swimming, windsurfing, and skin diving. Not for scuba diving.

General Precautions:

• Have battery replaced by a trained technician; special tools are required.
• Avoid exposing leather bands to water.
• Glass fogging due to temperature changes is normal if it clears quickly. If moisture persists, seek service.
• Water-resistant watches are tested per ISO standards.
• Watches without water resistance markings are not protected against sweat.
• Do not operate buttons underwater. Avoid baths, saunas, and high humidity environments. Do not wear while washing hands or doing housework with soaps/detergents.
• Rinse with plain water after exposure to seawater.
• Gaskets should be replaced periodically (every 2-3 years) to maintain water resistance.

Temperature: Avoid extreme temperatures (hot or cold) as they can affect timekeeping or cause malfunction. High temperatures (+60°C/140°F) can affect the LCD; low temperatures (below 0°C/32°F) or high temperatures (above +40°C/104°F) can make the LCD difficult to read.

Impact: The watch is designed for normal daily use and light activity. Strong impact can cause malfunction. Shock-resistant models are more durable.

Chemicals: Avoid contact with solvents, gasoline, thinners, oils, fats, adhesives, paints, medicines, or cosmetics, as they can damage resin, leather, and other parts.

Storage: Store in a cool, dry place after wiping clean of dirt, sweat, and moisture.

Resin Components: Avoid prolonged contact between wet resin parts and other items to prevent color transfer.

Band: Do not overtighten the band to prevent skin irritation. Check for wear, cracks, looseness, or other abnormalities; stop use and seek service if found.

Magnetism: Avoid strong magnetic fields (speakers, necklaces, phones) as they can affect hand movement and timekeeping. Very strong magnetism (medical equipment) can cause malfunction and damage.

Electrostatic Charge: Strong electrostatic charge can cause incorrect time display or damage components. It may cause the display to blank momentarily or show rainbow effects.

Discoloration: Prolonged exposure to sunlight, dirt, friction, or moisture can cause discoloration of resin parts, painted components, or printed figures on the band. Wipe dry immediately after getting wet.

User Maintenance

Caring for Your Watch: Keep the watch and band clean by wiping with a soft cloth to remove dirt, sweat, and foreign matter. Rinse with fresh water if exposed to seawater or mud. For metal bands, use a soft toothbrush with mild detergent solution, rinse, and dry. For resin bands, wash with water and dry. Smudges on resin bands can be wiped off.

Dangers of Poor Watch Care:

• Rust: Dirt can prevent oxygen contact, leading to rust on metal components, potentially causing sharp edges or band pin issues. Stop use and seek service if rust is noticed.
• Premature Wear: Sweat, water, or high moisture can cause premature wear, cuts, or breaks in resin parts.
• Skin Irritation: Sensitive individuals should keep bands clean. Discontinue use and consult a professional if irritation occurs.

Battery Replacement: Leave to authorized retailers or service centers. Use only the specified battery type. Request a water resistance check during battery replacement. Damaged components may prevent servicing.

Initial Battery: The factory-installed battery is for testing and may deplete faster than rated life. Replacement is chargeable, even within warranty.

Low Battery Power: Indicated by timekeeping errors, dim display, or blank screen. Malfunction may occur; replace the battery promptly.

City Code Table

This table lists city codes, their corresponding cities, and UTC Offset/GMT Differentials. It includes cities like Pago Pago (PPG), Honolulu (HNL), Anchorage (ANC), Vancouver (YVR), Los Angeles (LAX), Denver (DEN), Mexico City (MEX), Chicago (CHI), Miami (MIA), New York (NYC), London (LON), Paris (PAR), Tokyo (TYO), Sydney (SYD), and many others, covering various time zones worldwide. The rules for global times and summer time are determined by individual countries.