There are two artists that go by the name of The Watchman:  A blues / american folk artist.
 A Chicago based IDM / Drum n Bass producer of local fame.  If you say The Watchman plays Blues, you're right. If you say The Watchman plays American Folk, you're right. If you say the band rocks, you're right. The music of The Watchman is a search for originality along a road full of traditional elements, 'roots', improvisation and happy songwriting. If it really needs to be forced into words, why not just call it contemporary Rhythm & Folk.