Product Overview

The Casio Edifice EFV620D-1A4V is a quality timepiece featuring a large-size black bezel and a silver-tone stainless steel strap. Its design is inspired by motorsports, offering a sporty and fashionable aesthetic. This watch combines precise timekeeping with robust construction and practical features for everyday wear.
Key Features:
- Sporty & Stylish Design: Inspired by motorsports, the large black bezel and silver-tone stainless steel strap deliver a bold and fashionable aesthetic.
- Precise Timekeeping with Chronograph Function: Features a 1/10-second stopwatch with measuring modes for elapsed time, split time, and 1st-2nd place times, alongside three dials for stopwatch tracking.
- Durable Stainless Steel Construction: Built with a stainless steel case and band, complemented by a screw-lock back and mineral glass for added durability.
- 100M Water Resistance: Ideal for everyday use, including swimming and light water activities, providing peace of mind wherever you go.
- Convenient Date Display: Includes a clear date display to help you stay organized at a glance.
- Long-Lasting Battery Life: Powered by an SR920SW battery with a lifespan of approximately 3 years, ensuring reliability and low maintenance.
Setup
Setting the Time:
- Pull the crown out to the second click.
- Turn the crown to set the hour and minute hands to the desired time.
- Push the crown back in to the normal position.
Setting the Date:
- Pull the crown out to the first click.
- Turn the crown to set the date.
- Push the crown back in to the normal position.
Adjusting the Bracelet:
The stainless steel bracelet features a one-touch 3-fold clasp for secure fastening. For initial sizing or adjustments, it is recommended to consult a professional jeweler to add or remove links, ensuring a comfortable and secure fit.
Operating the Watch
Chronograph Function:
The watch is equipped with a chronograph (stopwatch) function, featuring three sub-dials:
- 1/10 Second Dial: Measures fractions of a second.
- Second Dial: Measures seconds.
- Minute Dial: Measures minutes.
To operate the chronograph:
- Press the upper button to start the stopwatch.
- Press the upper button again to pause the stopwatch.
- Press the lower button to reset the stopwatch to zero.
Water Resistance:

This watch is rated for 100 meters (330 feet) water resistance. This means it is suitable for everyday use, including showering, swimming, and snorkeling. However, it is not recommended for scuba diving.
Important: Do not operate the crown or buttons while the watch is wet or submerged in water, as this can compromise the water resistance and lead to internal damage.
Maintenance
Battery Life:
The watch is powered by an SR920SW battery, which has an approximate lifespan of 3 years. When the battery runs low, the watch may exhibit irregular movement or stop. It is recommended to have the battery replaced by a qualified watch technician to ensure proper sealing and water resistance.
Cleaning:
To maintain the appearance of your watch, wipe the case and band with a soft, dry cloth regularly. For stainless steel bands, a slightly damp cloth can be used, followed by a dry cloth. Avoid using chemical cleaners, solvents, or abrasive materials, as these can damage the watch's finish.
Storage:
When not in use, store your watch in a dry place away from direct sunlight, extreme temperatures, and strong magnetic fields. Keeping it in its original box or a watch case can help protect it from dust and scratches.
Troubleshooting
- Watch Not Running: Ensure the crown is fully pushed in. If the watch still does not run, the battery may need replacement.
- Incorrect Time/Date: Refer to the "Setting the Time" and "Setting the Date" sections in this manual to correctly adjust the watch.
- Condensation Inside Crystal: If you notice condensation inside the watch crystal, it indicates a potential breach in water resistance. Seek professional service immediately to prevent further damage.
- Chronograph Not Resetting to Zero: If the chronograph hands do not reset to the 12 o'clock position, consult the full user manual for calibration instructions or seek professional assistance.
Specifications
| Feature | Detail |
|---|---|
| Model Number | EFV620D-1A4V |
| Brand | Casio Edifice |
| Movement Type | Quartz |
| Display Type | Analog Chronograph |
| Case Material | Stainless Steel |
| Band Material | Stainless Steel |
| Clasp Type | One-touch 3-fold Clasp |
| Water Resistance Depth | 100 Meters (WR 100M) |
| Crystal Type | Mineral Glass |
| Case Diameter | 50.5 mm |
| Case Thickness | 11 mm |
| Band Width | 22 mm |
| Item Weight | 0.25 Kilograms (8.82 ounces) |
| Battery Type | SR920SW (Approx. 3 years life) |
| Additional Features | Chronograph, Date Display |
Warranty Information
The Casio Edifice EFV620D-1A4V watch comes with a Limited Warranty from the manufacturer. Please refer to the warranty card included with your product for specific terms, conditions, and duration of coverage.
For purchases made through Amazon, a 30-day return policy is typically offered for refunds or replacements, subject to Amazon's return guidelines.
Support
For further assistance, detailed user guides, or to inquire about service and repairs, please visit the official Casio support website or contact their customer service department.
You can also visit the official Casio Store on Amazon for more product information and accessories: Casio Store