Introduction
This manual provides detailed instructions for the proper use and maintenance of your Casio AQ164W-1AV Ana-Digi Sport Watch. Please read this manual thoroughly to ensure optimal performance and longevity of your timepiece.
Product Overview
The Casio AQ164W-1AV is an ana-digi sport watch featuring both analog hands and a digital display. It includes various functions designed for daily use and sports activities.

Front view of the Casio AQ164W-1AV Ana-Digi Sport Watch, showcasing its analog hands and digital display with various indicators.

The Casio AQ164W-1AV Ana-Digi Sport Watch as worn on a wrist, illustrating its size and fit.
Setup
Setting the Analog Time
- Pull out the crown located on the right side of the watch.
- Rotate the crown to adjust the analog hands to the desired time.
- Push the crown back in to start the analog timekeeping.
Setting the Digital Time and Date
The digital display allows for setting the current time, date, day, and month. Specific button operations may vary slightly; refer to the general Casio module instructions for detailed steps. Typically, this involves:
- Pressing the MODE button to cycle through different modes until you reach the Time Setting mode.
- Using the ADJUST or SEARCH buttons to select the digit or setting to change.
- Using the FORWARD or REVERSE buttons (often the same as ADJUST/SEARCH in setting mode) to change the value.
- Pressing MODE again to confirm and exit the setting mode.
Operating Instructions
Mode Navigation
Press the MODE button to cycle through the watch's functions:
- Timekeeping Mode (displays current time, day, date)
- Dual Time Mode (for tracking a second time zone)
- Stopwatch Mode (for measuring elapsed time)
- Countdown Timer Mode (for setting a specific countdown duration)
- Alarm Mode (for setting up to three daily alarms)
Using the Stopwatch
- Navigate to Stopwatch Mode using the MODE button.
- Press the START/STOP button (often labeled SEARCH or similar) to begin timing.
- Press the START/STOP button again to pause/resume.
- Press the RESET button (often labeled ADJUST or similar) to clear the stopwatch.
- The watch also features a lap memory function, indicated by "LAP MEMORY" on the display.
Using the Countdown Timer
- Navigate to Countdown Timer Mode.
- Use the ADJUST button to enter setting mode and set the desired countdown time.
- Press the START/STOP button to begin the countdown.
- An alarm will sound when the countdown reaches zero.
Setting Alarms
The watch supports up to three independent alarms. You can also activate an hourly time signal (SIG).
- Navigate to Alarm Mode.
- Use the SEARCH button to select Alarm 1, 2, 3, or the Hourly Time Signal (SIG).
- Use the ADJUST button to enter setting mode for the selected alarm.
- Set the desired alarm time.
- Activate or deactivate the alarm using the appropriate button (often SEARCH).
- The watch also features a Snooze (SNZ) function for alarms.
Using the Illuminator Light
Press the LIGHT button to illuminate the digital display. The light duration can typically be adjusted (e.g., 1.5 seconds or 3 seconds) in the watch's settings mode. Note that pressing other buttons while the light is active may turn it off.
Maintenance
Cleaning Your Watch
- Wipe the watch case and band with a soft, dry cloth.
- For stubborn dirt, use a soft cloth dampened with water and a mild soap, then wipe dry.
- Avoid using chemical cleaners, as they can damage the watch's materials.
Water Resistance (WR 100M)
Your Casio AQ164W-1AV watch is water resistant up to 100 meters (WR 100M). This means it is suitable for swimming, showering, and snorkeling. However, it is not recommended for scuba diving.
- Do not operate buttons or pull out the crown while the watch is wet or submerged in water.
- After exposure to saltwater, rinse the watch with fresh water and wipe it dry.
- Water resistance is not a permanent condition and may decrease over time due to wear and tear or impact.
Battery Replacement
The watch is powered by a battery. When the display becomes dim or functions become unreliable, it may be time for a battery replacement. It is recommended to have the battery replaced by an authorized Casio service center to ensure proper sealing and maintain water resistance.
Troubleshooting
- Digital Display is Hard to Read in Low Light: This model features a dark digital display for a subtle appearance. For optimal readability, ensure sufficient ambient light or use the Illuminator light function. If you require a clearer digital display, consider models with lighter digital displays.
- Analog and Digital Times Do Not Match: Re-synchronize the analog and digital times by following the "Setting the Analog Time" and "Setting the Digital Time" instructions.
- Buttons Are Unresponsive: Ensure the watch is not in a locked mode (if applicable) or that the battery is not depleted. If the watch has been exposed to water, ensure it is completely dry before operating buttons.
- Watch Stops or Time is Inaccurate: This may indicate a low battery. Have the battery checked and replaced by a professional.
Specifications
| Model Number | AQ164W-1AV |
| Case Diameter | 43.5 mm |
| Band Material | Plastic |
| Band Colour | Black |
| Movement Type | Quartz |
| Item Weight | 91 Grams |
| Water Resistance | 100 Meters (WR 100M) |
| Dimensions (LxWxH) | 12.7 x 10.2 x 20.3 Centimeters (Product packaging) |
| Functions | Analog/Digital Time, Day/Date/Month, Dual Time, Stopwatch, Countdown Timer, 3 Alarms, Hourly Time Signal, Illuminator Light |

The packaging for the Casio AQ164W-1AV Ana-Digi Sport Watch.
Warranty and Support
For warranty information, please contact the seller of record from whom you purchased the watch. Casio provides general support and service for its products.
For additional product information or to explore other Casio products, visit the official Casio Store on Amazon.





