1. Product Overview
The Casio Edifice EFB-109D Series watch, model EFB-109D-2AVCF, is designed with a classic sporty aesthetic, drawing inspiration from motorsports. It features a round stainless steel case, a mirror-finished bezel, and a blue dial with refined detailing. This timepiece is built for durability and comfort, suitable for both daily wear and more formal occasions.
Figure 1: Front view of the Casio Edifice EFB-109D-2AVCF watch, showcasing its blue dial and stainless steel construction.
2. Key Features
- Classic Sporty Design: Inspired by motorsports with a round stainless steel case, mirror-finished bezel, and a sun-ray blue dial accented with refined detailing for versatile wear.
- Durable Stainless Steel Construction: Features a solid stainless steel case and band with a one-touch 3-fold clasp, offering a sturdy yet comfortable fit.
- Clear, Easy-to-Read Display: Designed with contrasting hands and markers against a textured dial background, ensuring clear visibility in various lighting conditions.
- 100-Meter Water Resistance: Suitable for splashes, rain, and recreational swimming, making it a versatile choice for active lifestyles.
- Functional Everyday Features: Includes three-hand analog timekeeping (hour, minute, seconds), date display, ±20 seconds per month accuracy, and a screw lock back for added durability.
- Sapphire Crystal: Equipped with a scratch-resistant sapphire crystal for enhanced durability and clarity.
3. Setup
3.1 Initial Time and Date Setting
- Pull out the crown: Gently pull the crown (located on the right side of the watch case) out to the first click for date adjustment, or to the second click for time adjustment.
- Set the time: Rotate the crown to move the hour and minute hands to the desired time. Ensure AM/PM is correctly set if your watch has a 24-hour indicator or if you are setting the date.
- Set the date: If the crown is at the first click, rotate it to adjust the date. Avoid setting the date between 9 PM and 1 AM, as this may interfere with the automatic date change mechanism.
- Push in the crown: Once the time and date are set, push the crown back in to its normal position to start the watch.
3.2 Adjusting the Bracelet
The stainless steel bracelet can be adjusted by adding or removing links to achieve a comfortable fit. It is recommended to have this procedure performed by a qualified jeweler or watch technician to prevent damage to the bracelet or watch.
4. Operating the Watch
4.1 Timekeeping
The watch operates with a precise quartz movement, providing accurate three-hand analog timekeeping (hour, minute, and seconds). The seconds hand moves in one-second intervals.
4.2 Date Display
The date is displayed in a window on the dial. The date automatically advances once every 24 hours. If the date needs manual adjustment (e.g., after a month with fewer than 31 days), refer to the "Initial Time and Date Setting" section.
4.3 Water Resistance
This watch is water resistant to 100 meters (10 BAR). This rating means it is suitable for everyday use and can withstand splashes, rain, and recreational swimming. It is not intended for scuba diving or prolonged submersion at significant depths. Ensure the crown is fully pushed in before any contact with water.
5. Maintenance
5.1 General Care
- Cleaning: Wipe the watch case and bracelet periodically with a soft, dry cloth to remove dirt and moisture. For stainless steel, a slightly damp cloth can be used, followed by drying.
- Avoid Chemicals: Do not expose the watch to gasoline, cleaning solvents, aerosol sprays, adhesives, paints, or other chemicals. These can cause discoloration, deterioration, or damage to the resin case, band, or other parts.
- Temperature Extremes: Avoid exposing the watch to very high or very low temperatures for extended periods, as this can affect accuracy and battery life.
- Magnetic Fields: Keep the watch away from strong magnetic fields, as they can interfere with the quartz movement's accuracy.
5.2 Battery Replacement
When the watch stops or the seconds hand begins to move in two-second intervals, it indicates that the battery is low and needs to be replaced. Battery replacement should be performed by a qualified watch technician to ensure proper sealing and water resistance. The watch uses a Maxell SR920SW battery.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Watch is not running. | Low battery. | Replace the battery (refer to Section 5.2). |
| Time is incorrect. | Crown is pulled out; time needs adjustment. | Push the crown back in. If still incorrect, adjust the time (refer to Section 3.1). |
| Date is incorrect. | Date needs manual adjustment for short months. | Adjust the date manually (refer to Section 3.1). |
| Condensation inside the watch. | Sudden temperature change or compromised water resistance. | Avoid extreme temperature changes. If condensation persists, have the watch inspected by a service center. |
7. Specifications
- Brand: Casio
- Model Series: Edifice EFB-109D Series
- Specific Model: EFB-109D-2AVCF
- Item Model Number: 00622047
- Case Material: Stainless Steel
- Band Material: Stainless Steel
- Dial Color: Blue
- Crystal: Sapphire
- Water Resistance: 100 Meters (10 BAR)
- Movement: Quartz (Epson VX42E)
- Accuracy: ±20 seconds per month
- Functions: Hour, Minute, Second, Date Display
- Case Back: Screw Lock Back
- Approximate Package Dimensions: 4.1 x 3.2 x 2.9 inches
- Approximate Item Weight: 8.01 ounces
8. Warranty and Support
8.1 Warranty Information
This 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 information.
8.2 Customer Support
For technical assistance, service, or inquiries regarding your Casio Edifice watch, please contact Casio customer support through their official website or the contact information provided in your warranty documentation. When contacting support, please have your model number (EFB-109D-2AVCF) and serial number (if applicable) ready.
