About This Manual • Button operations are indicated using the letters shown in the illustration. • Each section of this manual provides you with the information you need to perform operations in each mode. Further details and technical information can be found in the “Reference”...
Procedure Lookup The following is a handy reference list of all the operational procedures contained in this manual. To set the time and date ..................E-6 To toggle between 12-hour and 24-hour timekeeping ......... E-8 To set an alarm time ..................... E-11 To test the alarm ....................
To set the Dual Time ..................... E-21 To turn on the backlight manually ..............E-22...
Timekeeping Use the Timekeeping Mode to set and view the current Day of week time and date. Month – Day To set the time and date 1. In the Timekeeping Mode, hold down A until the seconds start to flash, which indicates the setting screen.
3. When the setting you want to change is flashing, press D to change it as described below. To change this setting Perform this button operation Press D to reset to 00. Seconds Press D to increase the setting. Hour, Minutes, Year, Month, Day •...
To toggle between 12-hour and 24-hour timekeeping In the Timekeeping Mode, press D to toggle between 12-hour timekeeping and 24-hour timekeeping. • With the 12-hour format, the P (PM) indicator appears to the left of the hour digits for times in the range of noon to 11:59 p.m. and no indicator appears to the left of the hour digits for times in the range of midnight to 11:59 a.m.
Alarms You can set up to five independent multi-function alarms Alarm date with hour, minutes, month, and day. When an alarm is (Month – Day) turned on, the alarm tone sounds when the alarm time is reached. One of the alarms can be configured as a snooze alarm or a one-time alarm, while the other four are one-time alarms.
Alarm Types The alarm type is determined by the settings you make, as described below. • Daily alarm Set the hour and minutes for the alarm time. This type of setting causes the alarm to sound everyday at the time you set. •...
To set an alarm time 1. In the Alarm Mode, use D to scroll through the alarm screens until the one whose time you want to set is displayed. Press • To set a one-time alarm, display one of the screens indicated by an alarm number from through .
3. Press C to move the flashing in the sequence shown below to select other settings. Hour Minutes Month 4. While a setting is flashing, press D to increase it. • To set an alarm that does not include a month (Daily alarm, Monthly alarm), for the month.
Alarm Operation The alarm tone sounds at the preset time for 10 seconds, regardless of the mode the watch is in. In the case of the snooze alarm, the alarm operation is performed a total of seven times, every five minutes, until you turn the alarm off or change it to a one- time alarm (page E-14).
To turn Alarms through and the Hourly Time Signal on and off 1. In the Alarm Mode, use D to select a one-time alarm Hourly time signal (alarm number through ) or the Hourly Time Signal on indicator 2. Press A to toggle it on and off. Alarm on indicator •...
To select the operation of Alarm 1. In the Alarm Mode, use D to select Alarm 2. Press A to cycle through the available settings in the sequence shown below. Snooze on indicator ( ) and Alarm on indicator Press One-time Snooze alarm on...
Countdown Timer The countdown timer can be set within a range of one minute to 24 hours. An alarm sounds when the countdown reaches zero. • You can also select auto-repeat, which automatically restarts the countdown from the original value you set whenever zero is reached.
• The countdown timer measurement operation continues even if you exit the Countdown Timer Mode. • Press D while a countdown operation is in progress to pause it. Press D again to resume the countdown. • To completely stop a countdown operation, first pause it (by pressing D), and then press A.
To turn auto-repeat on and off 1. In the Countdown Timer Mode, hold down A until the hours setting of the countdown start time starts to flash, Auto-repeat indicator which indicates the setting screen. 2. Press B to toggle auto-repeat on ( displayed) and off ( not displayed).
Stopwatch The stopwatch lets you measure elapsed time, split times, 1/100 second and two finishes. • The display range of the stopwatch is 23 hours, 59 minutes, 59.99 seconds. • The stopwatch continues to run, restarting from zero after it reaches its limit, until you stop it. •...
To measure times with the stopwatch Elapsed time Start Stop Re-start Stop Clear Split time Split Split release Stop Clear Start (SPL displayed) Two Finishes Split Stop Split release Clear Start First runner Second runner Display time of finishes. finishes. second runner.
Dual Time The Dual Time Mode lets you keep track of time in a different time zone. • In the Dual Time Mode, the seconds count is synchronized with the seconds count of the Timekeeping Mode. To set the Dual Time 1.
Backlight The backlight uses an LED (light-emitting diode) and a light guide panel that cause the entire display to glow for easy reading in the dark. • See “Backlight Precautions” on page E-24 for other important information about using the backlight. To turn on the backlight manually In any mode, press B to illuminate the display for about one second.
Reference This section contains more detailed and technical information about watch operation. It also contains important precautions and notes about the various features and functions of this watch. Auto return features If you leave a screen with flashing digits for two or three minutes without performing any operation, the watch automatically saves any settings you have made up to that point and exits the setting screen.
Backlight Precautions • The illumination provided by the backlight may be hard to see when viewed under direct sunlight. • The backlight automatically stops illuminating whenever an alarm sounds. • Frequent use of the backlight shortens the battery life. E-24...
Specifications Accuracy at normal temperature: ±30 seconds a month Timekeeping: Hour, minutes, seconds, p.m. (P), month, day, day of the week Time system: Switchable between 12-hour and 24-hour formats Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099 Alarms: 5 Multi-function ∗...
Dual Time: Hour, minutes, seconds, p.m. (P) Other: Backlight (light-emitting diode) Battery: One lithium battery (Type: CR2025) Approximately 10 years on type CR2025 (assuming alarm operation 10 sec./day, and one backlight operation 1.5 sec./day) E-26...
Operating Precautions Water Resistance • The following applies to watches with WATER RESIST or WATER RESISTANT marked on the back cover. Enhanced Water Resistance Under Water Daily Use Resistance Under Daily Atmospheres Atmospheres Atmospheres On watch front or Marking 5BAR 10BAR 20BAR on back cover...
Battery replacement requires the use of special tools. Always request battery replacement from your original retailer or from an authorized CASIO Service Center. • Some water-resistant watches come with fashionable leather bands. Avoid swimming, washing, or any other activity that causes direct exposure of a leather band to water.
Should you notice any breakage, discoloration, looseness or other problem with the band, immediately contact your original retailer or an authorized CASIO Service Center to have it checked, repaired, or replaced. Note that you will be charged for any repair or replacement of the band.
Temperature • Never leave the watch on the dashboard of a car, near a heater, or in any other location that is subject to very high temperatures. Do not leave the watch where it will be exposed to very low temperatures, either. Temperature extremes can cause the watch to lose or gain time, to stop, or otherwise malfunction.
Magnetism • Though your watch normally is not affected by magnetism, very strong magnetism (from medical equipment, etc.) should be avoided because it can cause malfunction and damage to electronic components. Electrostatic Charge • Exposure to very strong electrostatic charge can cause the watch to display the wrong time.
Storage • If you do not plan to use the watch for a long time, wipe it thoroughly free of all dirt, sweat, and moisture, and store it in a cool, dry place. Resin Components • Allowing the watch to remain in contact with other items or storing it together with other items for long periods while it is wet can cause the color of the other items to transfer to the resin components of the watch.
• Semi-transparent resin parts can become discolored due to sweat and dirt, and if exposed to high temperatures for long periods. • Contact an authorized CASIO Service Center to have resin components replaced. Note that you will be charged for replacement costs.
Metal Components • Failure to clean dirt from a metal band can lead to formation of rust, even if the band is stainless steel or plated. If the watch is exposed to sweat or water, wipe it thoroughly with a soft, absorbent cloth and then store it in a well-ventilated location to dry. •...
• Display figures may be difficult to read when viewed from an angle. Note that CASIO COMPUTER CO., LTD. assumes no responsibility for any damage or loss suffered by you or any third party arising through the use of this product or its malfunction.
• Should your band become badly cracked or worn, be sure to have it replaced with a new one. Request band replacement from your original retailer or an authorized CASIO Service Center. Note that you will be charged for band replacement costs, even if your watch is still covered by its warranty.
Dangers of Poor Watch Care Rust • Though the stainless steel used for the watch is highly rust-resistant, rust can form if the watch is not cleaned after it becomes dirty. Failure of oxygen to come into contact with the metal because it is dirty causes breakdown of the oxidization layer on the metal surface, which leads to the formation of rust.
Battery Replacement • Leave battery replacement up to your original retailer or authorized CASIO Service Center. • Have the battery replaced only with the type specified by in this manual. Use of another type of battery can cause malfunction. • When replacing the battery, also request a check for proper water resistance. Note that you will be charged separately for water resistance inspection.