This manual introduces the operation of CASIO watches, including how to expose the watch to sunlight for charging, how to set the time, how to use the timer, stopwatch, countdown timer, alarm and world time functions
This manual provides step‑by‑step instructions for operating the Casio 5040 solar‑powered watch. It covers pre‑use notices, battery charging, time‑signal reception, manual time and date setting, world‑time selection, alarm configuration, and power‑saving features.
The guide also includes troubleshooting tips for signal‑reception failures, battery‑level warnings, and automatic or manual calibration of the hands. Technical specifications such as accuracy, power source, and supported radio‑signal frequencies are listed at the end of the document. This manual is written in Chinese.
| Accuracy (normal temperature) | ±15 seconds per month |
|---|---|
| Power source | Solar cell with rechargeable secondary battery |
| Battery life (no light) | ≈5 months |