Introduction
This manual provides detailed instructions for the proper use and maintenance of your Casio BGD-565U-4ER Digital Quartz Watch. Designed for an active lifestyle, this watch combines durability with essential digital functions. Please read this manual thoroughly to ensure optimal performance and longevity of your timepiece.

Figure 1: Front view of the Casio BGD-565U-4ER watch.
Setup
Before using your watch, it is important to set the correct time and date. The watch features four buttons: Adjust (top left), Mode (bottom left), Start/Stop (top right), and Light (bottom right).
Setting Time and Date
- In the Timekeeping Mode, press and hold the Adjust button until the seconds digits start to flash, indicating the setting screen.
- Press the Mode button to cycle through the settings: Seconds → Hour → Minute → Year → Month → Day.
- Use the Start/Stop button to increase the flashing digit or setting. Use the Light button to decrease it (if applicable).
- Once all settings are correct, press the Adjust button to exit the setting screen.
Battery Information
Your Casio BGD-565U-4ER watch is powered by one Lithium Metal battery (included). The battery is designed for long-term use. When the display becomes dim or functions become erratic, it may indicate a low battery. Battery replacement should ideally be performed by a qualified technician to maintain water resistance.
Operating Modes
The Mode button (bottom left) is used to navigate between the different operational modes of the watch.
- Timekeeping Mode: Displays the current time, day of the week, and date. This is the default mode.
- Alarm Mode: Allows you to set daily alarms. Press Adjust to enter setting mode, use Mode to select hour/minute, and Start/Stop to change values. Press Adjust to save.
- Stopwatch Mode: Measures elapsed time. Press Start/Stop to start/stop, and Adjust to reset.
- Countdown Timer Mode: Sets a timer for a specific duration. Press Adjust to set the time, Start/Stop to begin/pause, and Adjust to reset.
Using the Light
Press the Light button (bottom right) to illuminate the display for easy viewing in low-light conditions. The illumination duration is preset and cannot be adjusted.
Maintenance
Proper care will extend the life and maintain the appearance of your Casio watch.
Water Resistance
This watch is water resistant up to 10 bars (100 meters). This means it is suitable for everyday use and can withstand splashes, rain, and even swimming. However, it is not suitable for diving or prolonged submersion at significant depths. Do not operate buttons while the watch is wet or submerged.
Cleaning
Wipe the watch regularly with a soft, dry cloth to remove dirt and moisture. For stubborn grime, a slightly damp cloth can be used, followed by a dry cloth. Avoid using chemical cleaners, solvents, or abrasive materials, as these can damage the watch's finish and seals.
Storage
When not in use for extended periods, store your watch in a cool, dry place away from direct sunlight and extreme temperatures. The original gift box provides excellent protection.

Figure 2: The watch is delivered in an original gift box for safe storage.
Troubleshooting
If you encounter issues with your watch, refer to the following common problems and solutions:
- Display is blank or dim: The battery may be low. Consider professional battery replacement.
- Time is incorrect: Re-adjust the time and date settings as described in the "Setup" section. Ensure you are in the correct time zone.
- Buttons are unresponsive: Ensure the watch is not wet. If the issue persists, a soft reset might be needed (see below), or the watch may require servicing.
- Alarm does not sound: Check if the alarm is enabled in the Alarm Mode. Ensure the volume is not muted (if applicable, though this model typically has a fixed alarm tone).
Soft Reset
In some cases, a soft reset can resolve minor operational glitches. This typically involves holding all four buttons simultaneously for a few seconds until the display resets. Note that this may clear current settings, requiring you to re-set the time and date.
Specifications
| Feature | Detail |
|---|---|
| Model Number | BGD-565U-4ER |
| Brand | Casio |
| Movement | Digital Quartz |
| Case Dimensions | 30 X 37 mm |
| Case Thickness | 10 mm |
| Case Colour | Pink |
| Dial Colour | Pink |
| Strap Material | Plastic |
| Strap Length | 21 cm |
| Strap Width | 19 mm |
| Water Resistance | 10 bars (100 meters) |
| Weight | 30 g |
| Battery Type | 1 Lithium Metal battery (included) |
| Functions | Calendar (Day-Date), Stop Watch, Countdown Timer, Alarm, Light |
Warranty Information
Your Casio BGD-565U-4ER watch comes with a 2-year manufacturer's warranty from the date of purchase. This warranty covers manufacturing defects in materials and workmanship. It does not cover damage resulting from improper use, accidents, unauthorized repairs, or normal wear and tear (e.g., battery depletion, strap damage).
Please retain your proof of purchase for warranty claims. For service under warranty, contact Casio customer support or an authorized service center.
Customer Support
For further assistance, technical support, or inquiries regarding your Casio watch, please visit the official Casio website or contact their customer service department. You can often find contact details and FAQs on the Casio support page for your region.
For general information about Casio products, you may visit the Casio Store on Amazon.