This document introduces the features and characteristics of the MA0811-CkA module
This manual explains how to set the time on the Casio 5065 watch, describes the water‑resistance features and limits, and gives details on the SR621SW battery type and its expected three‑year life. It also covers the proper method for replacing the battery and checking the watch’s waterproof function.
Additional sections cover strap care, temperature and impact limits, magnetic and static‑electric influences, chemical exposure warnings, and storage recommendations to keep the watch operating reliably over its lifespan. This manual is written in Chinese.
| Monthly accuracy | ±20 seconds |
|---|---|
| Battery type | SR621SW |
| Battery life | ≈ 3 years |
Pull out the crown, rotate it to move the hands to the correct time, then push the crown back in to lock the setting.
It uses an SR621SW battery, which typically lasts about three years.
Battery replacement requires special tools and should be performed by an authorized Casio service center.