He argued with Chantrey and afterwards worked for Richard Westmacott, William Behnes and Edward Hodges Baily.
According to his biographer, Henry Lonsdale, he then spent two years at the Coade Artificial Stone Works in Lambeth, where he modelled sculptures and friezes for both private and public buildings.
[3] However, eventually circumstances improved: a stone frieze for Edward Moxhay's Hall of Commerce in Threadneedle Street in the City of London, completed in 1842, brought him critical acclaim.
In 1839 Watson submitted designs to both competitions held by the Nelson Memorial Committee for a monument to be erected in Trafalgar Square.
He was unsuccessful, but was later chosen to sculpt the relief panel of the Battle of Cape St. Vincent on the pedestal of the winning entry, William Railton's Nelson's Column.
"[7] Watson died before the Cape St Vincent relief could be finished, having suffered from a persistent heart condition for most of his adult life.