This manual describes the operation methods of models 3795 and 4387 watches. The watch has timing function, stopwatch function, alarm function, and calendar function. At the same time, the watch can adjust the digital time and pointer time. The calendar function of the watch can automatically adjust the date, but the date of leap year needs to be manually adjusted. In addition, the watch also supports daily alarm and hourly chime functions.
This manual provides step‑by‑step instructions for operating the Casio 3795 and 4387 watches. It covers digital and analog time setting, calendar adjustments, alarm configuration, second‑time zone, and stopwatch usage.
Each function is described with button sequences (B, C, A) and screen illustrations, including details on 12/24‑hour formats, automatic return to the main screen, and how to test or stop alarms. This manual is written in Chinese.
| Stopwatch range | 59 min 59.99 sec |
|---|---|
| Time format | 12/24‑hour |
| Pointer time adjustment step | 20 seconds per press |
In any setting screen, press C to select the time‑format option and use B to toggle between 12‑hour and 24‑hour modes.