Using Gps - Casio WSD-F21HR User Manual

To maintain water resistance, have the gaskets of your watch replaced
●
periodically (about once every two or three years).
Be sure to leave battery replacement up to an authorized CASIO service
●
center or your original retailer. Unauthorized battery replacement may
cause problems with the waterproof performance of the watch.
The inside surface of the watch glass may fog when the watch is exposed
●
to a sudden drop in temperature. No problem is indicated if the fogging
clears up relatively quickly. Sudden and extreme temperature changes
(such as coming into an air conditioned room in the summer and standing
close to an air conditioner outlet, or leaving a heated room in the winter and
allowing your watch to come into contact with snow) can cause it to take
longer for glass fogging to clear up. If glass fogging does not clear up or if
you notice moisture inside of the glass, immediately stop using your watch
and take it to an authorized CASIO service center or to your original retailer.
Do not charge the watch if the watch or charger cable is wet. Wipe off all
●
moisture and make sure the watch and charger cable are dry before
charging.

Using GPS

You watch can use radio signals from Global Positioning System satellites
to determine your current location and the current time anywhere on the
globe. The process for determining your current location is called
"positioning".
EN-107