Gene Watson's tour dates are listed in the Tour section of his website GeneWatsonMusic.com. As of 2015, the page lists tour dates from January 9 to October 15 of 2016.
The tour date page lists information about each performance date and venue. It shows the concert time, price of admission, any age restrictions, venue address and the box office/venue phone number. It also provides a link to buy tickets for individual events and another link to access more information about some of the venues/events.
Note that the links given to buy tickets connect to each venue's own website, not a general ticketing site.