This document provides instructions and precautions for using the CASIO watch 5057 1 MO0905-CkA, including the functions and adjustments of the watch's time and date.
This manual explains how to operate the Casio 5057 watch, including initial setup, time and date adjustment, stopwatch functions, alarm configuration, and baseline position calibration. It also contains safety notices and technical specifications.
The guide is organized into sections covering pre‑use notices, mode operations, distance input for speed calculations, alarm handling, and detailed specifications such as accuracy, calendar range, and battery information. This manual is written in Chinese.
| Accuracy | ±20 seconds per month |
|---|---|
| Calendar Range | 2000‑2099 (full‑auto calendar) |
| Stopwatch Measurement Limit | 59'59.95" |
| Stopwatch Measurement Unit | 1/20 second |
| Distance Input Range | 0.0 – 14.9 |
| Battery Type | SR927W silver‑oxide cell |
| Battery Life | approximately 3 years |
The watch maintains an accuracy of plus or minus 20 seconds per month under normal temperature conditions.
It uses a single SR927W silver‑oxide battery, which typically provides about three years of power.