This watch is a Casio model 5019. It is a solar-powered radio wave watch that can receive time calibration signals and update the time accordingly.
This manual provides detailed instructions for using the Casio 5019MO0710-ChA solar‑powered watch. It covers proper exposure to bright light for charging, the watch’s automatic and manual time‑signal reception, and how to configure time, date, DST, and other settings.
Additional sections describe how to adjust the baseline positions of the hands, manage power‑saving modes, and safely charge the internal battery under various lighting conditions. Technical notes on signal frequency, coverage, and troubleshooting are also included. This manual is written in Chinese.
| Signal frequency | 68.5 kHz |
|---|---|
| Battery charge level 1 | Full charge lasts about 4 months |
| Automatic signal reception times | 5 times per day at 1:00, 2:00, 3:00, 4:00, 5:00 |
The watch may have entered power‑saving mode; refer to the “節電功能” section or charge the watch by exposing it to bright light.