On 11 January 2019, Watson joined Widnes on loan until the end of the season.[5]
In July 2019 he joined Sligo Rovers on a season long loan.[6]
In February 2020 he joined Airbus UK until the end of the season.[7]
Southport
In October 2020 it was announced that Watson would link up with his father, Liam Watson, at National League North side Southport after a successful trial.[8] He made his first league appearance for the club on 6 October, coming on as a late substitute in the 0-0 draw against Hereford.
South Georgia Tormenta
On 30 December 2023, it was announced that Watson would join third-tier American side South Georgia Tormenta for their 2024 season.[9]