Watt is lead for former North Otago bowler Andrew Kelly in the pairs and is third in the fours with Kelly as skip.
The New Zealand teams were announced during the national championships at Auckland yesterday.
Watt (19) made a breakthrough on the international scene by winning the Hong Kong Classic singles at the end of 2007.
Originally from Palmerston, he is a student at the Sports Institute of Otago, where he is studying for a diploma in sports performance on a prime minister's scholarship.
Part of his course enables him to have 40 hours of professional coaching from former international Terry Scott.
Watt made his debut for the New Zealand development team against Scotland in 2006 and was also runner-up in the New Zealand under-19 singles that year.
Kelly (20), a mechanical engineer, was in the New Zealand Development team for the first time in New South Wales in 2006 and this will be the third time he has made the team.
His other claim to fame was to skip the first complete teenage team to reach the fours final at the 2006 national championships at Wellington. Kelly, a member of the Pukeuri club before shifting to Christchurch, is one of New Zealand's most promising bowlers.
He started bowls six years ago and has won six North Otago open titles and 12 junior titles and was named in the Bowls New Zealand high-performance squad in 2006.
The highlight of his junior years was to win the New Zealand secondary schools singles title when he was a pupil at Waitaki Boys High School.
His parents are prominent North Otago bowlers.
Bruce, his father, has won six provincial titles and Kerry, his mother, three.
The in-form Shannon McIlroy, who has had an outstanding season in singles tournaments throughout the country, has fought his way back into the premier Black Jacks bowls team for the transtasman series.
He established his class by winning his second Speight's North East Valley Invitation singles last October.
McIlroy, who was an unlucky omission from last year's World Bowls team, has won three major titles this season, enough for him to nudge World Bowls singles bronze medallist, Ali Forsyth, out of the team.
Sean O'Neill (Timaru) has returned to the men's team.
He will play in the middle of the triples and second in the fours.
Changes to the women's team has been forced upon the selectors, Dave Edwards, Terry Scott and Colleen Ferrick, with double world champion Val Smith about to have a knee operation, and the retirement of Sharon Sims from international bowls.
Hillcrest bowler, Genevieve Baildon, gets her first full cap as lead in the triples and the fours, while Mary Campbell and Serena Matthews have been recalled.
New Zealand Bowls team
Men
Singles: Shannon McIlroy (Stoke).
Pairs: McIlroy, lead, Gary Lawson (Eastbourne), skip.
Triples: Andrew Todd (Cabramatta, Sydney), lead, Sean O'Neill (Kia Toa), Richard Girvan (Okahu Bay), skip.
Fours: Todd, lead, O'Neill, Girvan, Lawson, skip.
Women
Singles: Mary Campbell (Tauranga South).
Pairs: Campbell, lead, Jo Edwards, skip (Burnside).
Triples: Genevieve Baildon (Hillcrest), lead, Serena Matthews (Elmwood), Jan Khan, skip (Beckenham).
Fours: Baildon, lead, Matthews, Khan, Edwards, skip.
Development men (under 25)
Singles: Matt Gallop (Eastbourne).
Pairs: Mark Watt (North East Valley), lead, Andrew Kelly (Elmwood), skip.
Triples: Chris Le Lievre (Onehunga), lead, Isaac Denny (Burnside), Gallop, skip.
Fours: Le Lievre, lead, Denny, Watt, Kelly, skip.
Development women (under 25)
Singles: Clare McCaul (Silverstream).
Pairs: Misty Arnold (United), lead, McCaul, skip.
Triples: Mandy Boyd (Taradale), lead, Gemma Collett (Papakura), Marny Jones (Silverdale), skip.
Fours: Arnold, lead, Boyd, Collett, Jones, skip.
Under 18 Boys (both play singles)
Pairs: Ryan Khan (Tokoroa), lead, Greg Ruaporo (Blockhouse Bay), skip.
Under 18 Girls (both play singles)
Pairs: Emma Le Lievre (Thames), lead, Amy Brenton (Stoke), skip.
