This is a manual for a CASIO watch, which contains the instructions for each function button and usage.
This manual explains how to use the Casio 3069 watch, including setting the time zone, enabling automatic signal reception, and operating various measurement functions such as direction, altitude, temperature, and countdown timer. It also describes how to charge the watch using its built‑in solar cell and how to manage the rechargeable battery.
Additional sections cover proper storage, care of the watch band, troubleshooting error messages, and detailed specifications. Maintenance advice includes cleaning the band, avoiding corrosion, and instructions for battery replacement at an authorized service center. This manual is written in Chinese.