This is the instruction manual for CASIO watch 3220, which introduces the basic use of the watch and function operation.
This manual provides step‑by‑step instructions for operating the Casio 3220 watch. It covers how to charge the built‑in solar and rechargeable battery, configure time using radio‑controlled signals, and set local city codes for world time display.
Additional sections describe the alarm, stopwatch, countdown timer, automatic illumination, power‑saving mode, button operations, and technical specifications, helping users get the most out of their watch in various lighting and environmental conditions. This manual is written in Chinese.
| Power source | Solar cell and rechargeable battery |
|---|---|
| World time cities | 48 cities (31 time zones) |