This manual describes how to use the CASIO 1004 watch, including countdown alarm, daily alarm, hourly chime, stopwatch function, time and date setting
This manual explains how to operate the Casio 3191 digital watch. It covers basic functions such as time and calendar setting, daily and hourly alarms, a countdown timer, and the stopwatch with a maximum measurement of 59 min 59.9 s.
Additional sections describe battery type (CR1216), expected battery life of about two years, and the watch’s accuracy of ±30 seconds per month. The guide also includes details on how to start, stop, and reset the stopwatch and how to adjust the alarm sound and flashing display. This manual is written in Chinese.
| Accuracy (room temperature) | ±30 seconds per month |
|---|---|
| Stopwatch range | 59 min 59.9 s |
| Stopwatch resolution | 0.1 s |
The stopwatch can measure up to 59 minutes and 59.9 seconds.