User's Manual

E-7
Caution!
Never try to take the watch apart!
Never try to take the watch apart. Doing so creates the risk of
personal injury and malfunction of the watch.
Battery Replacement
When the watch’s battery is replaced, foreign matter adhering to
contact surfaces can cause a loss of water resistance. In order to
ensure water resistance is maintained and the watch performs at
the level for which it is designed, make sure you always request
battery replacement from your dealer or CASIO distributor.
Keep backup copies of data!
Make sure you always keep separate written copies of important
data to protect against its loss. Malfunction, repair, and battery
replacement can cause memory contents to be deleted.