This manual provides step‑by‑step instructions for using the Casio 3179 solar‑powered watch. It covers initial precautions, how to set the time manually or via radio‑signal calibration, and how to configure world‑time, daylight‑saving and alarm functions.
The guide also describes the watch’s solar battery charging requirements, automatic illumination behavior, battery‑level indicator, power‑saving mode and troubleshooting tips for signal reception and battery maintenance. This manual is written in Japanese.
| Battery life (full charge) | ≈ 9 months |
|---|---|
| Supported world‑time cities | 48 cities |
The watch automatically adjusts the time by receiving radio‑signal calibration; you can also set the time manually if needed.
Under indoor lighting of about 500 lux the battery requires roughly 8 hours to charge.