This document is a user manual for Casio watch model 5081. The watch has multiple modes, including alarm mode, countdown timer mode, world time mode, and stopwatch mode. Mode switching and function operations can be performed by pressing different buttons. The watch can also adjust the date and time of the local city and supports daylight saving time settings. In addition, the watch has a stopwatch function that can measure elapsed time, split time, and lap time. The watch displays time in either 12-hour or 24-hour format.
This manual explains how to operate the Casio 5081 wristwatch. It covers all modes – timekeeping, alarm, stopwatch, timer, world‑time and lighting – and shows how to configure each function using the A, B, C, D buttons.
Additional sections describe battery replacement, automatic lighting, calibration of the hands, and safety warnings. The specifications of the watch, such as accuracy, battery type, and display limits, are listed at the end of the document. This manual is written in Chinese.
| Accuracy | ±15 seconds per month |
|---|---|
| Battery type | CR1220 lithium |
| Battery life | ≈2 years |
| Lighting | LED |
| Time format | 12‑hour and 24‑hour |
| Stopwatch resolution | 1/1000 second |
| World‑time cities | 48 cities, 29 time zones |
In time‑keeping mode hold the B button for about three seconds; this toggles the automatic lighting indicator on or off.