1. Isingeniso
This manual provides detailed instructions for the operation and maintenance of your Casio AE-1400WH-3AVCF Digital Watch. Please read this manual carefully to ensure proper use and to fully utilize all features of your watch.
The Casio AE-1400WH-3AVCF is a robust digital watch designed for durability and functionality, featuring a 10-year battery life and 100-meter water resistance. It includes multiple functions such as world time, stopwatch, countdown timer, and multiple alarms.

Umfanekiso 1: Ngaphambili view of the Casio AE-1400WH-3AVCF Digital Watch.
2. Ukuqalisa: Ukusetha Kokuqala
Upon first use or after a battery change, you may need to set the current time and date. Refer to the following steps:
- Ifaka Imodi Yokusetha Isikhathi: Cindezela bese ubamba i LUNGISA button (usually top-left) until the city code starts flashing. This indicates you are in the Home City setting mode.
- Selecting Home City: Sebenzisa i- PHAMBILI (bottom-right) and REVERSE (top-right) buttons to select your desired Home City code.
- Adjusting Time and Date: Cindezela inkinobho IMODE button (bottom-left) to cycle through the setting options: DST (Daylight Saving Time), 12/24-hour format, Seconds, Hour, Minute, Year, Month, Day. Use the PHAMBILI futhi REVERSE izinkinobho ukulungisa inani elikhanyayo.
- Iphuma kumodi yokusetha: Uma zonke izilungiselelo sezilungile, cindezela inkinobho LUNGISA inkinobho ukuphuma kumodi yokusetha.

Umfanekiso 2: Uhlangothi view showing watch buttons for adjustment.
3. Iziqondiso Zokusebenza
3.1 Imodi Yokugcina Isikhathi
The watch normally displays the current time, day of the week, and date. The small world map display indicates the current time zone.
3.2 Imodi Yesikhathi Yomhlaba
This watch can display the current time in 31 time zones (48 cities) around the world.
- Entering World Time Mode: Kusuka ku-Timekeeping Mode, cindezela IMODE button until 'WORLD TIME' appears on the display.
- Viewing Other Time Zones: Sebenzisa i- PHAMBILI futhi REVERSE buttons to scroll through different city codes and view their current times.
- Swapping Home City and World Time City: In World Time Mode, press the LUNGISA button to swap your Home City time with the currently displayed World Time City.

Figure 3: World Time display with digital map.
3.3 Imodi ye-alamu
The watch features 5 daily alarms and an hourly isignali yesikhathi.
- Entering Alarm Mode: Kusuka ku-Timekeeping Mode, cindezela IMODE inkinobho kuze kuvele 'ALARM'.
- Selecting an Alarm: Sebenzisa i- PHAMBILI button to cycle through AL1 to AL5 and the SIG (Hourly Time Signal).
- Ukusetha i-alamu: With the desired alarm selected, press and hold the LUNGISA button until the hour setting flashes. Use PHAMBILI futhi REVERSE ukusetha ihora nomzuzu. Cindezela IMODE ukushintsha phakathi kwezilungiselelo zehora neminithi.
- Ivula/Yenza I-alamu ingasebenzi: Cindezela inkinobho PHAMBILI button in Alarm Mode (without holding ADJUST) to toggle the selected alarm ON/OFF.
- Exiting Alarm Mode: Cindezela inkinobho LUNGISA button to exit the setting mode, or IMODE to return to Timekeeping Mode.

Figure 4: Daily Alarm display.
3.4 Imodi yewashi lokumisa
Izinyathelo zesitophuwashi zidlule isikhathi, izikhathi zokuhlukanisa, nokuqeda kabili.
- Entering Stopwatch Mode: Kusuka ku-Timekeeping Mode, cindezela IMODE button until 'STW' (Stopwatch) appears.
- Qala/Misa: Cindezela inkinobho PHAMBILI button to start and stop the stopwatch.
- Setha kabusha: Ngenkathi isitophuwashi sisamile, cindezela inkinobho REVERSE inkinobho ukuze uyisethe kabusha ku-zero.
- Isikhathi Sokuhlukanisa: While the stopwatch is running, press the REVERSE button to record a split time. Press REVERSE again to return to elapsed time display.
3.5 Imodi Yesibali Sesikhathi Sesehla
The countdown timer can be set for a period of up to 24 hours.
- Entering Countdown Timer Mode: Kusuka ku-Timekeeping Mode, cindezela IMODE button until 'TMR' (Timer) appears.
- Ukubeka Isikhathi: Cindezela bese ubamba i LUNGISA button until the hour setting flashes. Use PHAMBILI futhi REVERSE ukusetha isikhathi sokubala esifiselekayo. Cindezela IMODE ukushintsha phakathi kwezilungiselelo zehora neminithi.
- Start/Stop/Reset: Cindezela inkinobho PHAMBILI button to start or stop the countdown. Press the REVERSE button while the timer is stopped to reset it to its starting time.
3.6 Ukukhanyisa
The watch features an LED backlight for easy viewezimeni eziphansi zokukhanya.
- Activating Illumination: Cindezela inkinobho UKUKHANYA button (front-bottom) to illuminate the display.
- Ubude besikhathi sokukhanyisa: The illumination duration can be adjusted in the Timekeeping Setting Mode.
4. Isondlo
4.1 Ukumelana Namanzi
Your Casio AE-1400WH-3AVCF watch is water resistant to 100 meters (10 BAR). This means it is suitable for swimming, showering, and snorkeling. However, it is not recommended for scuba diving. Do not operate buttons while the watch is wet or submerged.

Figure 5: Water Resistance icon.
4.2 Impilo Yebhethri
The watch is equipped with a 10-year battery. When the display becomes dim or the illumination function weakens, it is an indication that the battery needs to be replaced. Battery replacement should be performed by a qualified technician to maintain water resistance.
4.3 Ukuhlanza
Wipe the watch with a soft, dry cloth. If necessary, use a mild soap solution and rinse thoroughly. Avoid using chemical cleaners or solvents.
5. Ukuxazulula izinkinga
- Isikhathi/Idethi engalungile: Ensure your Home City setting is correct. If the time is still incorrect, follow the 'Initial Setup' instructions to re-adjust.
- Akukho Ukubonisa/Ukubonisa Okufiphele: Ibhethri kungenzeka liphansi noma liphele. Shintsha ibhethri.
- Izinkinobho Ezingaphenduli: Ensure the watch is not in a locked mode (if applicable) or that it is not wet. If the issue persists, a reset may be required (refer to the full manufacturer's manual for advanced reset procedures).
6. Imininingwane
| Inombolo Yemodeli | I-AE-1400WH-3AVCF |
| Ibhrendi | I-Casio |
| Uhlobo lokubonisa | Idijithali |
| I-Case Material | I-Resin |
| I-Band Material | I-Resin |
| Ukujula Kokumelana Namanzi | Amamitha ayi-100 (Ibha eyi-10) |
| Impilo Yebhethri | Cishe iminyaka emi-10 |
| Izici | World Time (31 time zones, 48 cities), 5 Daily Alarms, Hourly Time Signal, 1/100-second Stopwatch, Countdown Timer, LED Backlight |
| Ubukhulu | 10.5 x 2 x 0.5 amayintshi (Ubukhulu bomkhiqizo) |
| Isisindo sento | 0.15 Kilogram (5.22 ounces) |

Figure 6: Case back details.
7. Iwaranti kanye Nokusekela
This Casio watch comes with a manufacturer's warranty. For specific warranty details, please refer to the warranty card included with your purchase or visit the official Casio website. For technical support, repairs, or further assistance, please contact Casio customer service or an authorized service center.
You can find additional information and support resources on the Isitolo seCasio ku-Amazon.