Casio 4390 - Reference

E-53
Reference
This section contains more detailed and technical information about watch operation.
It also contains important precautions and notes about the various features and
functions of this watch.
Auto Return Features
• If you do not perform any operation for about two or three minutes in the current time
setting mode, or in the hand/day home position correction mode, the watch will
return to the Timekeeping Mode automatically.
• If you do not perform any operation for about two or three minutes while a setting
mode is selected, the watch will exit the setting mode automatically.
High-Speed Movement
• In most cases when configuring settings, holding down a button will start high-speed
scrolling of the applicable setting.
• High-speed movement of hands and day will continue until you press any button.