This document is a manual for Manual 3151 1 MO0803-CkA, which explains the various functions and operations of the watch.
This manual provides step‑by‑step instructions for operating the Casio 3151 watch. It covers setting the current time, date, and residence data, configuring world‑time zones, and using the tide and moon‑phase displays.
Additional sections describe how to use the alarm, countdown timer, stopwatch (including the automatic‑start feature), button‑sound settings, flash‑alert, and automatic illumination. Safety notes and technical warnings are included throughout. This manual is written in Chinese.
| UTC offset range | -12.0 to +14.0 hours |
|---|---|
| Longitude range | 0° to 180° |
| Countdown timer range | 1 minute to 24 hours |
| Stopwatch display limit | 23 h 59 m 59.99 s |
In timing mode, hold the B button for about 3 seconds to toggle automatic illumination on or off.