Introduction
Thank you for choosing the Casio AW-90H-2BVDF Wristwatch. This manual provides essential information regarding the setup, operation, and maintenance of your watch. Please read it carefully to ensure proper use and to maximize the lifespan of your timepiece.
Image: Front view of the Casio AW-90H-2BVDF Wristwatch, displaying its analog and digital time displays.
General Guide
Your Casio AW-90H-2BVDF watch features both analog hands and a digital display. It typically includes multiple buttons for various functions. While specific button labels may vary, common functions are usually assigned to buttons located on the sides of the watch case.
- Mode Button: Cycles through different modes (Timekeeping, Alarm, Stopwatch, Dual Time).
- Adjust Button: Used to select items for setting in various modes.
- Start/Stop Button: Used to start/stop stopwatch, or change values during setting.
- Light Button: Activates the backlight for illumination.
Image: Side view of the Casio AW-90H-2BVDF Wristwatch, highlighting one of the control buttons.
Setup and Timekeeping
Setting Digital Time and Date
- In the Timekeeping Mode, press the Adjust button until the seconds digits start to flash, indicating the setting screen.
- Press the Mode button to cycle through the setting options: Seconds → Hour → Minutes → Year → Month → Day.
- Use the Start/Stop button to increase the flashing value. Hold down to change rapidly.
- Once all settings are correct, press the Adjust button to exit the setting screen.
Adjusting Analog Hands
The analog hands are typically synchronized with the digital time. If they are out of alignment, refer to the specific hand adjustment procedure in the full module manual (available on the Casio website by searching your model number). Generally, this involves entering a hand setting mode and using buttons to move the hands.
Operating Modes
Press the Mode button to cycle through the watch's various functions:
- Timekeeping Mode: Displays the current time and date.
- Alarm Mode: Set and activate daily alarms.
- Stopwatch Mode: Measure elapsed time.
- Dual Time Mode: View the time in a different time zone.
Using the Alarm
- Enter the Alarm Mode using the Mode button.
- Press the Adjust button to enable setting the alarm time. The hour digits will flash.
- Use the Start/Stop button to change the hour. Press Mode to switch to minutes and adjust.
- Press Adjust to confirm the alarm time.
- To turn the alarm on/off, press the Start/Stop button while in Alarm Mode (not in setting mode).
Using the Stopwatch
- Enter the Stopwatch Mode using the Mode button.
- Press the Start/Stop button to start the stopwatch.
- Press Start/Stop again to stop it.
- Press the Adjust button to reset the stopwatch to zero.
Illumination
Press the Light button (if available) to illuminate the digital display for a few seconds in low-light conditions.
Care and Maintenance
Water Resistance
Your watch is marked with "WATER RESIST" on the case back, indicating it is suitable for everyday use and can withstand splashes or brief immersion in water. However, it is not designed for diving or prolonged water exposure. Do not operate buttons while the watch is wet or submerged.
Image: Rear view of the Casio AW-90H-2BVDF Wristwatch, showing the stainless steel case back with "WATER RESIST" engraving.
Cleaning
Wipe the watch with a soft, dry cloth to remove dirt and moisture. For stubborn dirt, use a soft cloth dampened with water and a mild neutral detergent, then wipe dry. Avoid using volatile agents like thinner or benzine, which may damage the resin components.
Battery Information
This watch uses one CR123A battery (included). When the display becomes dim or functions become erratic, it is time to replace the battery. Battery replacement should ideally be performed by a qualified watch technician to ensure proper sealing and water resistance.
Storage
When not in use for extended periods, store your watch in a dry place away from direct sunlight, extreme temperatures, and strong magnetic fields.
Troubleshooting
- Incorrect Time: Ensure you have correctly set both the digital and analog times. If the analog hands are misaligned, refer to the hand adjustment procedure.
- Blank or Dim Display: The battery may be low or depleted. Replace the battery.
- Buttons Not Responding: Ensure the watch is not in a locked mode (if applicable) or that it is not wet. If the issue persists after drying, the battery may be low.
- Water Inside Watch: If you notice condensation or water droplets inside the watch, have it inspected immediately by a qualified technician to prevent further damage.
Specifications
| Model Number | AW-90H-2BVDF |
| Manufacturer | Casio |
| Product Dimensions | 2.44 x 4.09 x 3.7 inches |
| Item Weight | 2.08 ounces |
| Battery Type | 1 CR123A (included) |
| Water Resistance | Water Resistant (suitable for splashes, not diving) |
| Language | English |
Warranty Information
Your Casio watch is covered by a manufacturer's warranty against defects in materials and workmanship. The specific terms and duration of the warranty may vary by region. Please refer to the warranty card included with your purchase or visit the official Casio website for detailed warranty information.
Customer Support
For further assistance, technical support, or service inquiries, please contact Casio customer support. You can find contact information and frequently asked questions on the official Casio website. When contacting support, please have your watch model number (AW-90H-2BVDF) readily available.





