This is a Casio watch manual, introducing the usage and maintenance methods of the watch
This operation guide introduces the Casio 4317/4318 solar‑powered watch, covering basic handling, power‑supply basics and the radio‑controlled timekeeping feature. It explains how to keep the watch exposed to bright light for optimal solar charging and describes the battery‑level indicators shown by the analog hands.
The manual details the automatic and manual time‑calibration signal reception, reception ranges, troubleshooting steps, and procedures for adjusting home positions, setting the time zone, and charging the rechargeable battery. It also provides exposure‑time tables for different lighting conditions and safety precautions while charging.
| Battery level indicator (Level 2) | Second hand jumps every 2 seconds, all functions disabled except analog timekeeping |
|---|---|
| Battery level indicator (Level 3) | All functions disabled, analog hands move to current time when recharged |
| Automatic signal receive frequency | Up to six times per day |
| Reception range (maximum) | 4,500 km (approx. 1,500 km under good conditions) |
| Exposure time for full charge (outdoor sunlight, 50,000 lux) | 6 minutes |
| Recovery time from Level 2 to Level 1 (indoor fluorescent, 500 lux) | 85 hours |
It indicates the battery is at Level 2, meaning low power; all functions are disabled except analog timekeeping and the watch should be exposed to bright light to recharge.
The watch automatically receives the time‑calibration signal up to six times per day at scheduled times based on the selected Home Time Zone.