Model: AQ-S820W-3BVCF
The Casio AQ-S820W Series AQS820W-3BV Green is a robust and versatile timepiece designed for daily wear and active lifestyles. Featuring Casio's innovative Tough Solar power system, this watch eliminates the need for regular battery changes by converting light into energy. It combines analog and digital displays, offering comprehensive timekeeping functions and durability.

This image displays the Casio AQ-S820W-3BV Green watch. It features a dark green resin case and strap, with a black bezel marked with "TOUGH SOLAR", "LIGHT", "SEARCH", "ILLUMINATOR", "MODE", and "ADJUST". The dial is dark grey with white hour markers and hands, and a digital display showing "SUN 36" and "DST". The watch face also indicates "5 ALARMS" and "WATER 100M RESIST".
Your Casio AQ-S820W watch is powered by a solar cell that generates electricity from light. Ensure the watch is regularly exposed to light to maintain a sufficient charge. Avoid prolonged storage in dark places.
The analog hands automatically synchronize with the digital time. If they are misaligned, perform the following adjustment:
El MODE button (bottom left) is used to navigate between the different operating modes of the watch.
This is the default mode, displaying the current time, day of the week, and date. The analog hands also show the current time.
Aquest mode us permet view the current time in 48 cities (31 time zones) around the world.
The stopwatch measures elapsed time up to 59 minutes, 59.99 seconds.
The watch features five independent daily alarms and an hourly senyal horari.
Premeu el botó LLUM button (top right) in any mode to illuminate the digital display for approximately 1.5 seconds.
The Casio AQ-S820W is water resistant to 100 meters (10 ATM). This means it is suitable for everyday use and can withstand splashes, rain, showering, swimming, and snorkeling. Do not operate buttons while the watch is wet or submerged.
Wipe the watch regularly with a soft, dry cloth to remove dirt and moisture. For resin bands, you can wash them with water and mild soap, then rinse thoroughly and dry. Avoid using harsh chemicals or abrasive cleaners.
To ensure optimal performance, expose the watch face to light regularly. Avoid storing the watch in dark places for extended periods, as this can deplete the rechargeable battery. If the charge level becomes low, functions may be disabled to conserve power.
| Problema | Solució |
|---|---|
| La pantalla digital està en blanc o té poca llum. | The watch battery may be low. Expose the watch to bright light for several hours to charge it. |
| Les agulles analògiques no coincideixen amb l'hora digital. | Perform the analog hand alignment procedure as described in the "Adjusting Analog Hands" section under Initial Setup. |
| L'hora és incorrecta. | Check your Home City setting and DST (Daylight Saving Time) setting. Re-adjust the time and date if necessary. |
| Els botons no responen. | Ensure the watch is not wet. If the issue persists, the battery might be extremely low; try charging it. If still unresponsive, contact Casio support. |
| Característica | Detall |
|---|---|
| Número de model | AQ-S820W-3BVCF |
| Fabricant | Casio |
| Font d'alimentació | Tough Solar (energia solar) |
| Resistència a l'aigua | 100 metres (10 caixers automàtics) |
| Hora del món | 31 time zones (48 cities + UTC), city code display, daylight saving on/off |
| Cronòmetre | 1/100-second; Measuring capacity: 59'59.99"; Measuring modes: Elapsed time, split time, 1st-2nd place times |
| Alarmes | 5 daily alarms, hourly senyal horari |
| Calendari | Calendari automàtic complet (fins a l'any 2099) |
| Llum de fons | LED backlight (Illuminator) with afterglow |
| Dimensions (paquet) | 4 x 3.4 x 2.9 polzades |
| Pes (paquet) | 5.61 unces |
Casio products are manufactured to high quality standards and come with a limited warranty. For specific warranty terms and conditions, please refer to the warranty card included with your purchase or visit the official Casio weblloc.
For technical support, service, or inquiries regarding your Casio AQ-S820W watch, please contact Casio customer service directly:
Please have your model number (AQ-S820W-3BVCF) and purchase details ready when contacting support.
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