Casio EFD-1000 Watch User Manual (Module 3057)
Important Information
Please read this important information before using your watch.
Battery
The battery in your watch is installed at the factory and should be replaced immediately if it shows signs of insufficient power (e.g., backlight does not turn on, display is dim) by an authorized CASIO dealer or distributor.
Water Resistance
Watches are classified by their water resistance rating (from I to V) according to the degree of protection against water. Please refer to the table below to ensure correct usage of your watch.
| Rating | Rain, Washing | Swimming, Washing | Scuba Diving | Snorkeling/Diving |
|---|---|---|---|---|
| I | No | No | No | No |
| II WATER RESISTANT | Yes | No | No | No |
| III 50M WATER RESISTANT | Yes | Yes | No | No |
| IV 100M WATER RESISTANT | Yes | Yes | Yes | No |
| V 200M WATER RESISTANT | Yes | Yes | Yes | Yes |
| 300M WATER RESISTANT | Yes | Yes | Yes | Yes |
Notes for relevant sections:
- I. Watches are not water resistant. Avoid exposure to any moisture.
- II. Do not pull out the crown if the watch is wet.
- III. Do not press the watch buttons underwater.
- IV. If the watch is exposed to salt water, rinse it thoroughly and dry it.
- V. Watches can be used for scuba diving (except for depths requiring a helium-oxygen mixture).
Some water-resistant watches are equipped with leather straps. Do not wear these watches while swimming or engaging in any other activity that may expose the strap to water.
Care for Your Watch
- Never try to open the case or remove the back cover yourself.
- The rubber gasket that protects the watch from water and dust should be replaced every 2-3 years.
- If water enters the watch, have it checked immediately by an authorized CASIO dealer or distributor.
- Do not expose the watch to extreme temperatures.
- Although the watch is designed for normal use, avoid rough handling and do not drop it.
- Do not fasten the strap too tightly. A finger should fit between your wrist and the strap.
- To clean the watch and strap, use a dry soft cloth, or a soft cloth dampened with a water solution of mild neutral detergent. Never use volatile agents (such as gasoline, thinners, spray cleaners, etc.).
- When not using your watch, store it in a dry place.
- Avoid exposing the watch to gasoline, cleaning solvents, aerosol sprays, adhesives, paint, etc. Chemical reactions caused by these materials can damage gaskets, the case, and the finish.
- Some watch straps feature silk-screened images. Be careful when cleaning such straps to avoid damaging these designs.
For watches with resin straps:
You may notice a white powdery substance on the strap. This substance is harmless to your skin or clothing and can be easily removed by wiping with a cloth. Exposure of the resin strap to perspiration or moisture, or storing it in a high-humidity environment can lead to damage, tearing, or cracking of the strap. To ensure a long service life for the resin strap, wipe it clean of dirt and moisture with a soft cloth whenever possible.
For watches with fluorescent cases and straps:
Prolonged exposure to direct sunlight can cause the fluorescent color to gradually fade. Prolonged contact with moisture can also cause the fluorescent color to gradually disappear. If any moisture gets on the watch surface, wipe it off as soon as possible. Prolonged contact with any other wet surface can cause the fluorescent color to fade. Ensure the fluorescent surface is dry and avoid contact with other surfaces. Rubbing a surface with applied fluorescent paint against another surface may transfer the fluorescent paint to that surface.
General Description of Operating Modes
The figure shows the overall view of the watch in the Current Time Mode. Sequential pressing of button "C" cycles through the modes in the following order: Current Time Mode – World Time Mode – Stopwatch Mode – Countdown Timer Mode – Alarm Mode – Current Time Mode.
Press button "B" in any mode to turn on the backlight.
Current Time Mode
In this mode, you can view and set the current time and date.
Press button "A" to view the set city code for your current location.
Setting Current Time/Date
- In the Current Time Mode, press and hold button "A" until the seconds display starts flashing, indicating the start of setting.
- Press button "C" to cycle through the setting items in the following order: Seconds – City Code – Daylight Saving Time (DST) – Hours – Minutes – 12/24 Hour Format – Year – Month – Day – Seconds.
- Use buttons "D" and "B" to select the city code for your current location.
- If you select seconds for correction (seconds display flashes), press button "D" to reset the seconds count to 00. If you press button "D" when the seconds count is between 30 and 59, the seconds count will reset to 00 and 1 will be added to the minutes count. If the seconds count is between 00 and 29, the minutes count will not change.
- Use buttons "D" to increase and "B" to decrease the selected value.
- The day of the week is set automatically according to the date.
- The date can be set in the range from January 1, 2000, to December 31, 2099.
- Press button "D" to switch between 12-hour and 24-hour time formats.
- With the 12-hour format, the "P" indicator denotes PM (after noon).
- In Daylight Saving Time Mode, press button "D" to turn Daylight Saving Time ("ON"/"OFF") on or off.
- After completing the settings, press button "A".
World Time Mode
In this mode, you can view the local time in any of 48 cities (29 time zones).
- World Time values are automatically set according to the current time.
- Press button "A" to view the current time for your location in World Time Mode.
Viewing Current Time in Another City
In World Time Mode, press button "D" to select the city whose time you want to view.
Daylight Saving Time (DST) Switching
- Use button "D" to select the city for which you want to change the Daylight Saving Time setting.
- Press and hold button "A" for approximately 2 seconds to turn Daylight Saving Time ("DST") on or off.
World Time City List
| City Code | City | Difference from Greenwich Mean Time (GMT) | Other Major Cities in the Same Time Zone |
|---|---|---|---|
| MOW | Moscow | +03.00 | Moscow |
| THR | Tehran | +03.05 | |
| DXB | Dubai | +04.00 | Nairobi, Shiraz |
| PPG | Pago Pago | -11.0 | |
| HNL | Honolulu | -10.00 | |
| KBL | Kabul | +04.05 | Abu Dhabi, Muscat |
| ANC | Anchorage | -09.00 | |
| KHI | Karachi | +05.00 | |
| YVR | Vancouver | -08.00 | Vancouver |
| MLE | Male | +05.00 | |
| SFO | San Francisco | -08.00 | San Francisco |
| DEL | Delhi | +05.50 | Mumbai, Kolkata |
| LAX | Los Angeles | -08.00 | Las Vegas, Seattle, Dawson City |
| DAC | Dhaka | +06.00 | Colombo |
| RGN | Yangon | +06.50 | |
| DEN | Denver | -07.00 | El Paso, Edmonton |
| BKK | Bangkok | +07.00 | Hanoi, Vientiane |
| MEX | Mexico City | -06.00 | Mexico City |
| SIN | Singapore | +08.00 | |
| CHI | Chicago | -06.00 | Houston, Dallas, New Orleans, Winnipeg |
| HKG | Hong Kong | +08.00 | Kuala Lumpur, Manila, Perth, Ulan Bator |
| BJS | Beijing | +08.00 | Beijing |
| MIA | Miami | -05.00 | Miami |
| SEL | Seoul | +09.00 | |
| NYC | New York | -05.00 | Montreal, Detroit, Boston, Panama City, Havana, Lima, Bogota |
| TYO | Tokyo | +09.00 | Pyongyang |
| ADL | Adelaide | +09.05 | Darwin |
| GUM | Guam | +10.00 | |
| SYD | Sydney | +10.00 | Melbourne, Rabual |
| CCS | Caracas | -04.00 | Santiago |
| NOU | Noumea | +11.00 | Vila |
| YYT | St. John's | -03.50 | |
| WLG | Wellington | +12.00 | Nadi, Nauru, Christchurch |
| RIO | Rio de Janeiro | -03.00 | Sao Paulo, Buenos Aires, Brasilia, Montevideo |
| RAI | |||
| LIS | Lisbon | -01.00 | Dublin, Casablanca, Dakar, Abidjan |
| LON | London | +00.0 | |
| BCN | Barcelona | ||
| PAR | Paris | +01.00 | |
| MIL | Milan | +01.00 | |
| ROM | Rome | +01.00 | |
| BER | Berlin | +01.00 | |
| ATH | Athens | +02.00 | |
| JNB | Johannesburg | +02.00 | |
| IST | Istanbul | +02.00 | |
| CAI | Cairo | +02.00 | |
| JRS | Jerusalem | +02.00 | |
| JED | Jeddah | +03.00 | Kuwait, Riyadh, Aden, Addis Ababa |
Stopwatch Mode
The Stopwatch Mode allows you to measure elapsed time, split times, and dual finish times.
The measurable range for elapsed time is 59 minutes, 59.99 seconds.
Measuring Split Times
Sequence: D (Start) – D (Stop) – D (Restart) – D (Stop) – A (Reset).
Measuring Lap Times
Sequence: D (Start) – A (Lap Time. SPL indicator appears) – A (Restart Lap) – D (Stop) – A (Reset).
Dual Finish
Sequence: D (Start) – A (Split. First finish time displayed) – D (Stop. Second finish time displayed) – A (Cancel Split. Second finish time displayed) – A (Reset).
Countdown Timer Mode
The Countdown Timer can be set for a duration from one minute to 24 hours.
When the countdown reaches zero, a long beep sounds.
Using the Timer
- In Timer Mode, press button "D" to start the countdown.
- Press button "D" again to stop the countdown.
- You can resume the countdown by pressing button "D".
- After stopping the countdown, you can press button "A" to reset the countdown time to its starting value.
Setting the Timer Time
- In Timer Mode, press and hold button "A". The hour digits will flash, indicating the start of setting.
- Press button "C" to select the setting item: hours or minutes.
- Use button "D" to increase and button "B" to decrease the selected value.
- To enter a starting time of 24 hours, set it to "0:00".
- After completing the settings, press button "A".
Alarm Mode
You can set up to five different alarms.
- When the set time is reached, the alarm will sound for 10 seconds.
- If the Hourly Chime function is enabled, a short beep will sound at the start of each hour.
- If the Snooze Alarm is enabled, the alarm will repeat 7 times at 5-minute intervals until you turn it off.
- You can stop the alarm sound by pressing any button.
Setting an Alarm
- In Alarm Mode, press button "D" to select the alarm type: AL1 - AL2 - AL3 - AL4 – SNZ (Snooze Alarm) – SIG (Hourly Chime).
- After selecting the alarm type, press and hold button "A" for 3 seconds. The hour digits will flash, indicating it is selected for setting. The alarm will be automatically enabled at this point.
- Press button "C" to cycle through the setting items: Hours – Minutes.
- Press buttons "D" and "B" to change the selected value.
- After completing the settings, press button "A".
Backlight
Press button "B" in any mode to turn on the watch backlight.
- The backlight uses electroluminescent (EL) panels, whose power decreases after a certain period of use.
- The watch may emit an audible sound when the backlight is on. This is due to the vibration of the backlight elements and is not an indication of malfunction.
- The backlight may be difficult to see in direct sunlight.
- Frequent use of the backlight will shorten the battery life.
Changing Backlight Duration
- In Current Time Mode, press and hold button "A" until the flashing seconds display indicates the start of setting.
- Press button "B" to change the backlight duration: 1.5 seconds or 3 seconds.
Button Tones
Press and hold button "C" in any mode to turn the watch button tones on or off.
Technical Specifications
Accuracy: ±15 seconds per month
Current Time Mode: Hour, minute, second, AM/PM indicator, year, month, day, day of the week.
Calendar System: Auto calendar from 2000 to 2099.
Other: 12/24 hour format, DST (Daylight Saving Time).
World Time Mode: Current time in 48 cities (29 time zones).
Other: DST (Daylight Saving Time).
Product Information
Name: Electronic / Electro-mechanical Wristwatch (Men's/Women's)
Brand: CASIO
Manufacturer: CASIO COMPUTER Co.,Ltd. (CASIO Computer Co., Ltd.)
Manufacturer's Address: 6-2, Hon-machi 1-chome, Shibuya-ku, Tokyo 151-8543, Japan
Importer: OOO "Casio", 127055, Moscow, ul. Suchevskaya, d.27, str. 1, Russia
Country of Origin: 1
Warranty Period: 1 year
Address for Authorized Organization to Receive Claims: As indicated on the warranty card.
Product complies with GOST 26270-98 (clause 4.35)
Certificate of Conformity No. POCC JP. АЯ 46.00003
