Operation Manual

16
Press and hold buttons A, B, C and D at the same time for 2 to 3 seconds. The
display shown below appears.
* Before using the watch, set the time/calendar and alarm.
[Cal. W240, W620]
[Cal. W650]
WARNING
CAUTION
● The battery is not rechargeable. Never attempt to recharge it, as this
may cause battery leakage or damage to the battery.
● Do not remove the battery from the watch.
● If it is necessary to take out the battery, keep it out of the reach of
children. If a child swallows it, consult a doctor immediately.
● Never short-circuit, tamper with or heat the battery, and never expose
it to fire. The battery may burst, become very hot or catch fire.