Casio Edifice Watch - EFB-109D-2AVEF

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This guide is for owners of the Casio Edifice EFB-109D-2AVEF watch, offering a comprehensive overview of its features, usage, and care. This watch is ideal for those seeking a stylish and durable timepiece suitable for both casual and formal settings. The watch’s key benefit is its blend of classic design and sporty functionality. However, note that while it is water-resistant up to 100 meters, it is not designed for extreme diving.
| Series | Edifice |
|---|---|
| Model Part Number | EFB-109D-2AVEF |
| Brand | CASIO |
Pull out the crown to the second click and rotate it to set the time.
The watch is water-resistant up to 100 meters.
The watch features a sapphire crystal for scratch resistance.
The battery is designed to last for approximately 3 years.
Yes, the watch is suitable for swimming due to its 100-meter water resistance.
Press the top button to start/stop the chronograph. Press the bottom button to reset it.
Take the watch to a qualified watch repair shop for battery replacement.
The case and bracelet are made of stainless steel.
Check the battery. If the watch is new, ensure the crown is pushed in completely. If the watch still doesn't work, consider battery replacement.
Refer to the manual for instructions on how to reset the chronograph hands to their default positions.
This may indicate water has entered the watch. Seek professional service to prevent damage to the internal components.
The watch does not require initial setup. Adjust the time and date by pulling out the crown.
This watch is a standalone device and does not require any external devices.