Casio AMW870DA-3AV Watch User Manual

Introduction

This manual provides detailed instructions for the proper use and maintenance of your Casio AMW870DA-3AV Analog Digital Dual Time Zone Watch. Please read this manual thoroughly to ensure optimal performance and longevity of your timepiece.

Setup

Unboxing

Upon opening the package, you will find your Casio AMW870DA-3AV watch securely placed within its branded box. The package also includes a clear display stand for presentation.

This image displays the Casio watch packaging, a blue and white box with the Casio logo, alongside a clear plastic watch display stand.

Time and Date Setting

Your watch features both analog and digital time displays.

1. Analog Time Setting: Pull the crown out to the first click. Rotate the crown to set the hour and minute hands. Push the crown back in to start timekeeping.
2. Digital Time and Date Setting:
   • Press the 'Mode' button to cycle through modes until the digital time display flashes.
   • Use the 'Adjust' button to select the setting you wish to change (seconds, hour, minute, year, month, day).
   • Use the 'Search' or 'Forward' button to increase the value, and 'Reverse' button (if available) to decrease.
   • Press 'Mode' again to confirm settings and exit.

Dual Time Zone Setting

The watch allows for a second time zone display.

1. In the digital timekeeping mode, press the 'Mode' button until the Dual Time mode is displayed.
2. Hold the 'Adjust' button until the city code starts flashing.
3. Use the 'Search' or 'Forward' button to select your desired city code for the second time zone.
4. Press 'Adjust' to confirm and exit.

Band Adjustment

The stainless steel band features a triple-fold clasp. For proper fit, links may need to be added or removed by a qualified jeweler.

Operating Instructions

Basic Timekeeping

The watch displays time in both analog (hour, minute hands) and digital formats (hour, minutes, seconds, pm, month, date, day). It supports 12-hour and 24-hour formats.

Stopwatch Function

To use the 1/100-second stopwatch:

1. Press the 'Mode' button until 'STW' or 'Stopwatch' appears on the digital display.
2. Press the 'Start/Stop' button to begin timing.
3. Press 'Start/Stop' again to pause/resume.
4. Press the 'Reset' button to clear the stopwatch to zero.

Measuring capacity: 59'59.99". Measuring mode: Elapsed time.

Daily Alarm

To set and activate the daily alarm:

1. Press the 'Mode' button until 'ALM' or 'Alarm' appears.
2. Hold the 'Adjust' button until the alarm time starts flashing.
3. Use the 'Search' or 'Forward' button to set the desired alarm hour and minute.
4. Press 'Adjust' to confirm.
5. Press the 'Start/Stop' button to toggle the alarm ON/OFF.

Hourly Time Signal

The hourly time signal can be toggled ON/OFF in the alarm mode. When activated, the watch will beep every hour on the hour.

Water Resistance

This watch is water resistant up to 50 meters. This means it is suitable for short periods of recreational swimming, but not for diving or snorkeling. Avoid operating buttons while the watch is wet or submerged.

Maintenance

Battery Replacement

The approximate battery life is 3 years on an SR920W battery. When the display becomes dim or functions become erratic, it is time to replace the battery. Battery replacement should be performed by a qualified watch technician to ensure proper sealing and water resistance.

Cleaning

Wipe the watch case and band with a soft, dry cloth. For stainless steel bands, a slightly damp cloth can be used, followed by a dry cloth. Avoid using chemical cleaners or solvents.

Mineral Glass Care

The watch features mineral glass, which is scratch-resistant but not scratch-proof. Avoid contact with abrasive materials to prevent damage.

Troubleshooting

• Incorrect Time Display: Ensure the crown is fully pushed in. Re-set both analog and digital times as per the "Setup" section.
• Digital Display is Dim or Blank: This may indicate a low battery. Refer to the "Battery Replacement" section.
• Buttons Not Responding: Ensure the watch is not in a locked mode (if applicable, though not specified for this model). If submerged, ensure it is dry before operating buttons.
• Water Inside Watch: If moisture appears inside the watch, have it inspected immediately by a qualified technician to prevent damage.

Specifications

Warranty and Support

Your Casio watch is covered by a manufacturer's warranty. Please refer to the warranty card included with your purchase for specific terms and conditions. For technical support, service, or further inquiries, please visit the official Casio website or contact their customer service department.

Visit Casio Support Website