Instruction manual, introducing the usage of the watch.
This manual provides step‑by‑step instructions for operating the Casio 4764 digital watch. It describes each button function, how to set the digital time, date, daylight‑saving time, and city code, and explains the independent digital and analog timer modes.
Additional sections cover the world‑time display for up to 27 cities, the countdown timer with auto‑repeat and progress beeps, the stopwatch, alarm settings (including hourly chime), and the EL backlight illumination. Reference tables list city codes and time‑zone differences. This manual is written in Chinese.
| Countdown timer range | 1 to 60 minutes |
|---|---|
| Year setting range | 2000 to 2039 |
| Stopwatch maximum time | 59 minutes 59 seconds |