This is a multi-function electronic watch that can set time, date, alarm, countdown timer, stopwatch and second time.
This manual explains how to operate the Casio 3170 watch, covering functions such as time setting, timer, stopwatch, second‑time mode, illumination, and alarm settings. Each section describes the steps required to use the feature and includes reference information for further technical details.
The document also contains specifications, operating precautions, and user maintenance advice, including cleaning recommendations, protection against rust, and detailed battery‑replacement procedures to ensure proper waterproof performance. This manual is written in Chinese.