This manual explains how to use the CASIO watch, including how to charge it in bright light, how to use the radio time function, how to use the stopwatch function, how to use the countdown timer function, how to use the world time function, how to use the alarm function, how to manually set the time and date, how to manually adjust the pointer reference position, how to use the power, how to view the specifications, how to read the operating instructions, and how to perform user maintenance.
This manual explains how to use and maintain the Casio 5040 watch. It covers precautions, battery charging with the built‑in solar cell, and the effects of keeping the watch in bright light versus darkness.
The guide also details setting the time and date, using the power‑saving function, and troubleshooting common issues such as stopped hands. A city‑code table for UTC offsets is included for world‑time settings. This manual is written in Chinese.
| Battery type | Solar rechargeable |
|---|
Expose the watch to bright light regularly; the solar cell charges the internal battery in bright light.