A button

Pressing this button in the Timekeeping Mode cycles between displays.
In other modes, pressing this button returns to the Timekeeping Mode.

C button

Each press cycles between watch modes.
Hold down this button for at least two seconds to shift the hands.
In any mode, hold down this button for at least four seconds to return to the Timekeeping Mode.

Hour hand

LCD

Minute hand

B button

Press to turn on illumination.

D button

Pressing this button while any setting screen is displayed will change the setting.