This document is a user manual for CASIO watches, which explains how to use the watch most effectively, including keeping the watch exposed to bright light to maintain battery power, charging time and power-saving function of the watch, and receiving time calibration radio wave signals.
This manual explains how to use the Casio 3155MO0807-CkA watch, covering solar‑powered battery charging, power‑saving features, and the importance of exposing the watch to bright light. It also details the watch’s various modes such as rally timing, world time, alarms, stopwatch, and countdown timer.
The guide provides step‑by‑step procedures for receiving atomic time‑calibration signals automatically or manually, configuring city codes, adjusting daylight‑saving settings, and troubleshooting signal‑reception problems. Additional sections describe illumination control, battery management, and how to reset or delete stored records. This manual is written in Chinese.
| Solar charging time under bright sunlight | ≈5 minutes |
|---|---|
| Solar charging time under indoor fluorescent light | ≈8 hours |
| Maximum stopwatch duration | 23 h 59 min 59.99 s |
| Maximum specific‑segment measurement time | 99 h 59 min 59.9 s |
| Battery life after full charge | ≈7 months |
A blank screen means the power‑saving function has turned off the display to conserve battery.