The watch’s crown is a screw-in (screw lock) type. To use the crown, you first need to rotate it towards you (leftwards) to loosen it.
Fast Forward/Fast Reverse
After pulling out the crown to the first or second click, rotating it quickly in succession in either direction will start a fast forward or fast reverse operation. While a fast forward operation is in progress, quickly rotating the crown in succession again will increase the speed even further.
Stopping Fast Forward/Fast Reverse
Rotate the crown in the direction opposite that of the ongoing operation or press any button.