Watson, who spent five season with Adelaide, arrived in Newcastle yesterday afternoon and successfully completed his medical with Jets staff.
He is the latest player to join a revamped Jets squad under new coach Scott Miller.
Watson revealed his delight at the opportunity he's been given at Newcastle.
"It’s a new challenge and a fresh start," he said. "There are exciting times ahead I think with this rebuilding phase of the club.
"In terms of my style of play, I have always prided myself on getting up and down the field and helping out in defence and attack."
"Newcastle was always a tough place to come and play while I was with Adelaide, so I am looking forward to helping the team make sure that whenever we play we make our Members proud."
With the ink now dry on Watson’s contract, Miller is confident that the versatile former FC Porto and VVV Venlo man will prove to be a shrewd acquisition for the club.
"Cameron Watson has accumulated sound A-League experience over the past five years to complement his time developing in Europe when he was younger," Miller said.
"A clear benefit for us is that Cameron can play not only a midfield role, but also provide cover in the right fullback position. Naturally this adds depth to our squad and will help increase competition for places in the team.
"We view Cameron as a combative but also clever player who at 28 still has time some of his best years as a professional ahead of him."
