This manual explains the functions of the Casio 3188 watch, including time and date setting, world‑time selection, stopwatch, countdown timer, multiple alarms, illumination and battery information. Step‑by‑step procedures are provided for each feature.
The document also lists the technical specifications such as accuracy, timer range, battery type and life, and supported city codes for world‑time mode. This manual is written in Chinese.
| Timekeeping accuracy | ±30 seconds per month |
|---|---|
| Timer range | 1 minute to 24 hours |
| Second hand resolution | 59.99 seconds |
| World‑time cities supported | 48 cities (29 time zones) |
| Date range | 2000‑2099 |
| Number of daily alarms | 5 (4 single‑tone, 1 interval) |
| Battery type | CR1616 button cell |
| Battery life | ≈3 years |
First select the residence city, then you can set the time and date.
The countdown timer can be set from 1 minute up to 24 hours; press the start key to begin and press again to stop.
The watch has five daily alarms – four single‑tone alarms and one interval alarm – which can be set in the alarm function page.
It uses a CR1616 button cell that typically lasts about three years.