This is a watch manual, which mainly introduces the usage of the watch, including how to set time, alarm, stopwatch, second time and other functions.
This manual explains how to operate the Casio 3171 watch, covering time and date setting, stopwatch functions, second‑time mode, and illumination settings. Each mode is described with step‑by‑step button sequences and screen examples.
The guide also provides important safety and maintenance information, including proper cleaning, skin‑care warnings, and detailed battery‑replacement procedures that should be performed by an authorized Casio service center. This manual is written in Chinese.
Battery replacement should be performed by an authorized Casio dealer or service center, using only the battery type specified in the manual and checking the water‑resistance afterward.
A white display means the battery power is low and the watch should be recharged or the battery replaced promptly.