Casio LA-11 Watch

User Manual

Please familiarize yourself with this information first.

Battery

The battery installed at the factory may discharge during storage and transit. If the battery indicator becomes dim, replace the battery at your CASIO dealer or distributor.

Water Resistance

Watches are classified by rating (from I to IV) according to their water resistance. Check your watch's rating using the table below for proper operation.

Notes:

• Rank I: Buttons cannot be pressed underwater. If seawater gets on the watch, rinse it with fresh water and wipe it dry.
• Rank III: These watches are not waterproof; avoid getting them wet. Do not press buttons underwater.
• Rank IV: Some water-resistant watches come with leather straps. Do not wear such models while swimming or in any other situation that involves submersion of the strap in water.

Precautions for Operating Your Watch

• Do not attempt to open the case or remove the back cover.
• The gasket for water and dust protection should be replaced every 2-3 years.
• If water or condensation gets into the watch, return it to your CASIO dealer or distributor immediately.
• Do not expose the watch to excessively high temperatures.
• Although the watch is equipped with a shock-resistant mechanism, avoid subjecting it to strong impacts or dropping it on hard surfaces.
• Do not tighten the bracelet too much. A finger should be able to fit under the bracelet.
• Use a soft cloth, dry or dampened with a mild soap solution, to clean the watch and bracelet. Do not use volatile chemical solvents (such as gasoline, thinners, cleaning sprays, etc.).
• Always store the watch in a dry place when not in use.
• Do not expose the watch to aggressive reagents such as gasoline, cleaning reagents, or aerosols. Chemical reactions with such agents can degrade the gasket, case, and finish.
• Some watch bands have their specifications printed on them. Be careful not to erase them when cleaning.

For Watches with Plastic Bands...

• You may notice a whitish powdery residue on the band. This substance is not harmful to your skin or clothing and can be removed by wiping the band with a cloth.
• If moisture is left on a plastic band or if such a watch is left in a high-humidity environment, the band may warp, crack, or break. Wipe off dirt or moisture with a soft cloth as soon as possible to preserve the plastic band.

For Watches with Fluorescent Bands and Cases...

• Prolonged exposure to sunlight may cause fading.
• Prolonged contact with moisture may cause the fluorescence color to fade. Wipe off moisture from the surface as soon as possible.
• Prolonged contact with other wet surfaces may cause the fluorescence color to fade. Wipe moisture from the fluorescent surface as soon as possible and discontinue unwanted contact.
• Strong friction of a fluorescent surface against another surface may cause the printed color to transfer.

Display Indicators

Press button "C" to cycle through modes. Each mode is described in the following sections.

Timekeeping Mode

Displays Hours, Minutes, Seconds, and AM/PM indicator.

PM Indicator: Indicates PM hours in 12-hour format.

(For Module No. 487/506/526)

(For Module No. 683)

Alarm Mode

Indicates if the Hourly Chime is ON or the Daily Alarm is ON.

Countdown Timer Mode

Displays the Countdown Timer mode indicator.

Stopwatch Mode

Displays the Stopwatch mode indicator.

Setting Mode

Displays Month, Date, Day of Week.

Auto-return: If no buttons are pressed for 1-2 minutes, the watch automatically returns to Timekeeping Mode.

Setting the Countdown Timer

The countdown timer can be set for a period from 1 minute to 30 minutes. Pressing button "B" changes the countdown period sequentially: 1 min, 3 min, 5 min, 10 min, 15 min, 20 min, 30 min.

Countdown starts when button "B" is released. When the countdown reaches zero, an alarm sounds for 10 seconds. Press any button to stop the alarm.

Setting the Daily Alarm

If the daily alarm is set, an alarm sounds for 20 seconds at the set time every day. Press any button to stop the alarm. When the hourly chime is turned ON, it sounds at the start of every hour.

Checking the Alarm Sound: Press and hold button "A" in Alarm Mode to sound the alarm.

Setting Hours: Press "B" to select the hour setting. Press "A" to advance the hour. Holding "A" for more than 2 seconds speeds up the digit advancement. Pressing "C" returns the watch to Timekeeping Mode.

Setting Minutes: Press "B" to select the minute setting. Press "A" to advance the minutes. Holding "A" for more than 2 seconds speeds up the digit advancement.

Turning the Daily Alarm and Hourly Chime ON/OFF

Use button "A" to cycle through the following settings:

• Daily Alarm and Hourly Chime OFF
• Daily Alarm ON, Hourly Chime OFF
• Daily Alarm OFF, Hourly Chime ON
• Daily Alarm and Hourly Chime ON

Example: "A" 8:35 AL (Indicates Daily Alarm is ON and set to 8:35)

Stopwatch Mode

Operating range: The total time displayed is limited to 59 minutes 59.99 seconds. If the measured time exceeds the maximum, the stopwatch resets to 00 and starts counting again.

a) Measuring Elapsed Time

Start: Press "A". Stop: Press "A". Reset: Press "B".

b) Measuring Split Time

Start: Press "A". Split: Press "B". Resume Split: Press "A". Stop: Press "A". Reset: Press "B".

c) Split Time and 1st/2nd Place Times

Start: Press "A". Split: Press "B". Stop: Press "A". Reset: Press "B".

Note: Modules No. 506/526 do not measure split times.

Setting Time and Calendar

1. In Time Setting Mode, pressing button "A" first corrects the seconds to the time signal.
2. Press button "B" to advance the flashing digit to the next position. Flashing digits can be changed.
   • Digits: Seconds, Hours, Minutes, Month, Date, Day of Week.
3. Pressing button "A" advances the setting by one. Holding button "A" changes the setting rapidly.
4. Press button "C" to complete the setting.

Product Information

Item Name: Electronic / Electro-mechanical quartz wristwatches (men/women)

Brand: CASIO

Manufacturer: CASIO COMPUTER Co.,Ltd.

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

Importer: OOO "Casio", 127055, Moscow, ul. Sushchevskaya, d.27, str. 1, Russia

Country of Origin: Japan

Warranty Period: 1 year

Address for authorized organization for claims: As indicated on the warranty card.

Product complies with GOST 26270-98 (cl. 4.35)

Certificate of Conformity No. RUSS JP. АЯ 46.Д00003