• Operation Guide

Module No. 5748

5748

Published: 8/2025

  • Initial Time Adjustment
  • About This Watch
  • Troubleshooting
  • Precautions
Search by Function

Communication Functions

  • Linking with a Phone
  • Install the required app on your phone.

Time Functions

  • Time Correction
  • Alarm

Measurement Functions

  • Stopwatch
  • Timer

Other

  • Hand and Day Indicator Alignment
  • Other Settings
  • Specifications
  • Other Information

Search by Function

Basic Functions

Mode Navigation
Crown Operation
Solar Charging

CASIO WATCHES

Mobile Link
Installing the App
Pairing
Phone Connection
Phone Connection Disconnection
Unpairing
Summer Time Setting
Alarm Settings
Timer Settings
Hand and Day Indicator Position Correction
Phone Finder
Battery Level Indication
Recording Your Current Location（TIME&PLACE）
Watch Settings

Adjusting the Current Time Setting

Adjusting Current Time Manually
Auto Time Correction
Auto Time Correction On/Off
One-touch Time Correction

Alarm

Alarm Settings
Alarm On/Off

Stopwatch

Stopwatch Measurement

Timer

Timer Settings
Timer Operation

Illumination

Face Illumination

Other Functions

Hand and Day Indicator Alignment
Watch Reset

Other Information

Specifications

MA2508-A

OPUM-J

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