The Scots play England (4 June), Namibia (6 June), Oman (9 June) and Australia (15 June) in Group B.
“To have Michael Jones and Brad Wheal available, their experience from previous T20 World Cups is crucial for the group,” added Watson.
“The bulk of the squad have been together for a while now and did a fantastic job last summer at both the 50-over Qualifier and the T20 Qualifier. It’s nice to have a bit of continuity along the way, although they haven’t played a lot of cricket since.
“Hopefully, we can see the same level from these players, if not higher, when we get to the Caribbean.
“I’m very excited about what lies ahead and I think the players are too, the closer we get to it. For us as a nation, it’s a real opportunity to shine on the global stage. That first game against England, it’ll be quite a day – but we won’t look too far ahead.”
Scotland squad: Richie Berrington, captain (Clydesdale), Matthew Cross (Heriots), Brad Currie (Sussex), Chris Greaves (Grange), Oli Hairs (Watsonians), Jack Jarvis (Grange), Michael Jones (Durham), Michael Leask (Forfarshire), Brandon McMullen (RH Corstorphine), George Munsey (RH Corstorphine), Safyaan Sharif (Perth Doo’cot), Chris Sole (Grange), Charlie Tear (Sussex), Mark Watt (Heriots), Brad Wheal (Hampshire).
