FAQ

Malfunction

Satellite wave watch

Radio controlled watch

Charging

  • Question:
    Tell me things to take care when charging an Eco-Drive watch.

  • Question:
    Does charging time of an Eco-Drive watch vary with the seasons?

  • Question:
    Can Eco-Drive watches be recharged under fluorescent lamps?

Calendar

  • Question:
    The calendar on my watch changes at about noon. What can I do?

  • Question:
    What can I do to indicate the correct date and day of week on my watch with a year that is not covered in the calendar?

  • Question:
    Why does setting an alternative year make date and day of week indication correct?

  • Question:
    Why do most watches with the perpetual calendar not cover years after 2099?

Battery

Band

  • Question:
    How do I take care of a urethane band?

  • Question:
    How do I take care of a leather band?

  • Question:
    How do I take care of a metal band?

  • Question:
    The urethane band of my watch broke off. Is it repairable?

  • Question:
    Can I replace a metal band with a leather one? On the contrary, can I replace a leather with a metal one?

Daily care

Inspection and repair

Miscellaneous

  • Question:
    What does "power save function" mean?

  • Question:
    When is a leap second introduced?

  • Question:
    Why is IIII used for indicating 4 o'clock instead of IV on the watch dial?

  • Question:
    What are the differences between WR200 (Water resistant 20 bar), and Diver's 200M (Air diver's 200m) watches?

  • Question:
    Is it OK to keep the sticker unremoved on the case back of my watch?

  • Question:
    Is any radioactive substance used for luminous paint on watches made by CITIZEN?