Key facts
- Brand
- Casio
- Model
- H380
- Category
- Watches
- Industry
- Appliances
- Documents
- 2
- Languages
- ZH
- Last added
- 2026-10-13
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Casio H380 Solar Watch Quick Operation Guide
This document serves as a simplified operation manual for the Casio H380 solar-powered wristwatch. It instructs users on how to utilize the light energy feature by exposing the dial to sunlight before use. The guide provides step-by-step instructions for checking automatic time signal reception results and performing manual signal reception if needed. This manual is written in Chinese.
Read onlineAll Casio H380 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
How long does manual signal reception take?
Completing the reception requires 2-15 minutes.
What is the range for setting the timezone difference?
You can set the timezone difference in increments of one hour within a range of ±27 hours.
How do I check the baseline (zero) position of the watch?
Press and hold the B button with a tool for about 5 seconds; when the second hand spins quickly, release the button and the hands should stop at 00:00:00.
What steps are required to reset the watch to the baseline position?
Hold the B button for more than 5 seconds, pull the crown out one click, turn the crown until the second, minute, and hour hands align at 12 o’clock, then push the crown back and press B once.