Casio WSD-F10 User Manual page 34

Authentic
Simple analog watch face. Three dials.
Holding your finger on a dial (except for the B 24-hour dial) for a short while
will cause the dial to cycle to the next type of data that can be displayed there.
Note that if you hold your finger down too long, the watch face will contract
and enable other watch face settings (see
settings").
A Altimeter
B 24-hour timekeeping
C Compass
①
②
③
EN-32
"To change CASIO watch face