This document is an instruction manual for Casio watches, which introduces the precautions and features of using the watch. The watch uses solar energy and radio wave timekeeping function, which can be charged under bright light and automatically correct the time. The watch also has world time and date setting functions, as well as power saving function.
This manual explains how to operate the Casio 5031 watch, including time and date setting, hand position calibration, and power management. It also provides safety and maintenance guidelines to ensure long service life.
Key topics cover manual and automatic hand calibration, battery charging under bright light, and troubleshooting such as hand‑stop behavior when the battery is low. The document includes a city code table for UTC offset settings. This manual is written in Chinese.
| Battery type | Solar‑powered rechargeable battery |
|---|---|
| UTC offset range | ±3.5 hours |
The hands stop to save power when the battery is low or depleted, as part of the watch’s power‑saving function.
Expose the watch to bright light regularly; the built‑in solar cell converts light into electrical energy to charge the battery.
The battery will discharge, causing some functions to stop until the watch is re‑exposed to light and recharged.