This is a watch instruction manual, which introduces the usage methods of the watch's timing mode, stopwatch mode, countdown timer mode, alarm mode, world time mode, and lighting.
This manual explains how to operate the Casio 3178 watch, covering all available modes such as timekeeping, stopwatch, timer, world time, and illumination. It includes step‑by‑step procedures for setting the time, date, time zone, and other functions.
The document also contains reference information, a city‑code table, technical specifications, and guidance on proper use and maintenance to ensure the watch’s longevity. This manual is written in Chinese.
Before setting the time and date, read the relevant section of the manual and follow the instructions for adjusting the time and date settings.
You must first set the local time zone for the watch before adjusting the time.