Watson joined the band that would become The Action when they were still known as The Boys.[1] He had been working as a guitar demonstrator in Sound City in Shaftsbury Avenue, when he was scouted by the other band members looking to fill out their line up with another guitarist.[2]
Watson remained with the band until 1966, when he left over financial difficulties that Watson blamed on the band's then manager Rikki Farr.[3] Watson was replaced as lead guitarist by Martin Stone. On leaving the band, Watson largely left the music industry, until rejoining The Action when they reformed in 1998 for a number of reunion gigs and tours in the subsequent six years.[4]