This document introduces the usage and precautions of CASIO watches, including the measurement functions, solar power charging, battery usage and charging time. It also emphasizes that the watch is not suitable for navigation and tide time calculation, as well as the potential damages and losses caused by using the watch.
This manual explains how to operate the Casio 3217 watch, including automatic and manual time‑signal reception, world‑time city selection, daylight‑saving adjustments, and the use of special functions such as tide/moon data, alarms, and illumination.
It also provides safety warnings, battery‑charging guidelines, and detailed specifications of the watch’s power source, time‑keeping accuracy, and supported radio‑time signals. This manual is written in Chinese.
| Power source | Solar cell and rechargeable battery |
|---|---|
| Time display | Hours, minutes, seconds, AM/PM, month, day, weekday |
| Time format | 12‑hour and 24‑hour modes |
Press and hold the D button until the display flashes, then start the manual reception process.
A blank screen means the watch has entered power‑saving mode and turned off the display.