The incident took place on the north east coast of Sydney, Australia.
They were also assisted by Manly lifeguards and Freshwater Surf Lifesaving Club who deployed jetskis and inflatable rescue boats.
He was falling out of his kayak and had taken on quite a bit of water.
His kayak was recovered by Manlys lifeguards and returned to the shore.
This is not the first time Apple Watch has received credit for being a life savior.
source: www.techworm.net