Your watch uses a special rechargeable battery that cannot be replaced by you.
If you feel that the amount of operation time you get on a fully charged battery is too short, contact your nearest CASIO Service Center or your original retailer.
• Battery Replacement Precautions
Resin (exterior) parts may deteriorate due to daily use and may break or bend.
Note that if an abnormality is discovered in a resin part when you request battery replacement, your watch may be returned to you without the battery being replaced.
