Introduction
The Casio AW81D Series Analog-Digital Watch is a versatile timepiece designed for everyday wear, travel, and professional settings. It features a sleek silver stainless steel band and a striking blue dial, offering a dual-display format with both analog hands and a digital screen. This watch is built for durability and convenience, incorporating various timekeeping functions and a long-lasting battery.

Figure 1: Front view of the Casio AW81D Series Analog-Digital Watch, showcasing its blue dial and stainless steel design.
Setup
1. Initial Battery Activation
Your Casio AW81D watch is powered by a CR2025 battery, designed for up to 10 years of reliable performance. No specific activation is typically required for new watches; it should be ready for use upon receipt.
2. Setting Time and Date
The watch features both analog and digital displays. The full auto-calendar is pre-programmed through 2099, minimizing manual date adjustments. Refer to the watch's side buttons for time and date setting. Consult the detailed instructions provided in the watch's accompanying quick start guide for precise button functions.
3. Adjusting the Stainless Steel Bracelet
The stainless steel bracelet can be adjusted to fit your wrist comfortably. This process usually involves removing or adding links. It is recommended to have this adjustment performed by a professional jeweler or watch repair service to prevent damage to the bracelet or watch. Alternatively, detailed guides and videos on adjusting watch bracelets can be found online, but exercise caution if attempting yourself.

Figure 2: The Casio AW81D watch worn on a wrist, demonstrating its fit and appearance.
Operating the Watch
Your Casio AW81D watch offers a range of functions accessible via its side buttons:
- World Time: Track time in 30 cities across 29 time zones. Use the "Mode" button to navigate to World Time mode and the "Search" button to cycle through cities.
- 1/100-Second Stopwatch: For precise time tracking. Activate and control the stopwatch using the designated buttons (refer to your quick start guide for specific button assignments).
- 24-Hour Countdown Timer: Set a timer for various activities.
- Daily Alarms: Features three independent daily alarms, including a snooze alarm, to help manage your schedule. An hourly time signal can also be activated.
- LED Backlight with Afterglow: Press the "Light" button to illuminate the watch face for improved visibility in low-light conditions. The afterglow feature keeps the light on for a short period after the button is released.
- Databank (Telememo): Store up to 30 pages of data, each with eight letters and six numerals. This feature includes an auto-sort function.
For detailed instructions on activating and using each specific function, please refer to the comprehensive user manual available on the official Casio website or the quick start guide included with your watch.
Maintenance
- Water Resistance: The watch is water resistant to 50 meters (5 ATM). This means it is suitable for short periods of recreational swimming, but not for diving or prolonged water exposure. Avoid operating buttons while the watch is submerged.
- Cleaning: Regularly wipe the watch case and band with a soft, dry cloth to remove dirt and moisture. For the stainless steel band, a slightly damp cloth can be used, followed by thorough drying.
- Crystal Care: The watch features a mineral glass crystal. While durable, it can still scratch or scuff with impact or abrasive contact. Avoid dropping the watch or exposing it to rough surfaces to maintain its appearance.
- Battery Replacement: The CR2025 battery has an approximate 10-year lifespan. When replacement is needed, it is highly recommended to have it done by a certified watch technician to ensure proper sealing and maintain water resistance.
Troubleshooting
If you encounter issues with your Casio AW81D watch, consider the following common solutions:
- Incorrect Time/Date: Ensure the time and date are set correctly according to the "Setting Time and Date" section. If the analog hands are out of sync with the digital display, refer to the watch's full manual for analog hand adjustment procedures.
- Display Issues: If the digital display is dim or blank, the battery may be low and require replacement.
- Buttons Not Responding: Check for any debris or foreign objects obstructing the buttons. If the issue persists, a reset may be necessary (consult the full manual for reset procedures).
- Water Damage: Despite water resistance, extreme conditions or improper handling can lead to water ingress. If moisture appears inside the watch, seek professional service immediately to prevent further damage.
For persistent problems or issues not covered here, please contact Casio customer support or a qualified watch repair center.
Specifications
| Brand: | Casio |
| Model Number: | AW81D-2AV |
| Movement: | Quartz |
| Display Type: | Analog-Digital |
| Case Material: | Stainless Steel (with resin components) |
| Band Material: | Stainless Steel |
| Crystal Material: | Mineral Glass |
| Water Resistance: | 50 Meters (5 ATM) |
| Battery Type: | CR2025 Lithium Metal |
| Battery Life: | Approx. 10 years |
| Product Dimensions: | 4.84 x 2.83 x 3.03 inches |
| Item Weight: | 4 ounces |
| First Available Date: | December 12, 2001 |
Warranty and Support
For detailed warranty information, product support, and access to the full user manual, please visit the official Casio website. You can typically find support resources by searching for your specific model number (AW81D-2AV) on their support page.

Figure 3: The packaging box for the Casio AW81D Series watch.