The 26-year-old actor looked casual in a black shirt, blue blazer and pair of jeans as he posed during the photo call for the final film in the vampire franchise at Jones Bay Wharf in Sydney.
The British star, complete with tousled hair and overgrown stubble, looked windswept as he switched from smiley to sultry in the series of snaps.
It was reported last week that Pattinson, Stewart and Taylor Lautner would be promoting the movie separately in both Australia and Japan.
Pattinson and Stewart are believed to have reconciled following Stewart's affair with director Rupert Saunders, with the young stars having been papped kissing outside the 22-year-old actress's new Hollywood home.
The UK premiere of The Twilight Saga: Breaking Dawn - Part 2 is set to take place in London on November 14.
Watch a trailer for the film below: