The manual provides information on how to use the watch, including battery charging, battery life, radio atomic timekeeping, and setting the home city
This manual provides instructions for operating the Casio 3159 solar‑powered watch. It covers how to keep the rechargeable battery charged by exposing the watch to bright light, how to set the city code, and how to use automatic illumination.
It also describes the watch's time‑signal reception from multiple global stations, world‑time display for 48 cities, alarm and timer functions, and detailed technical specifications such as power source, battery life, accuracy and supported time‑signal frequencies. This manual is written in Chinese.
| Power source | Solar cell and rechargeable battery |
|---|---|
| Battery life | Approximately 10 months under listed conditions |
| Time‑signal frequency (Germany) | 77.5 kHz (DCF77) |
| Time‑signal frequency (UK) | 60.0 kHz (MSF) |
| Time display | Hours, minutes, seconds, AM/PM, month, day, weekday |
| Time format | 12‑hour and 24‑hour |
In the time‑keeping screen, press and hold the @ button until the city code flashes, then use the @ (east) and @ (west) buttons to select the desired code.
Enter the alarm function screen, press the @ button to choose the alarm type, then adjust hours and minutes with the @ and @@ buttons.