To change modes, turn the rotating bezel and align the mode name on the rotating bezel with the mode indicator mark () on the fixed bezel.
The rotating bezel can be turned either clockwise or counterclockwise.

Rotating bezel
Fixed bezel
Mode indicator
CAUTION
If sand or dirt enters the clearance between the rotating bezel and the watch case, the rotating bezel may not turn smoothly. If the watch is soiled with such foreign matter, rinse it off completely in a container of tap water.