was the unofficial manager of Newcastle United
from 1895 to 1935. He did not have control over team selection so technically he was not manager but rather the club secretary, as a member of the committee that at the time owned the club.
A Scotsman, Watt's first involvement in football came with the 3rd E.R.V. club in Edinburgh, the precursor of the former league side St Bernard's, where he combinined his playing role with that of club secretary. He was later appointed secretary of the Edinburgh (later East of Scotland) Football Association before leaving for Tyneside.
During his time at the Newcastle the club won the old First Division four times in 1905, 1907, 1909 and 1927. They also won the FA Cup three times in 1910, 1924 and 1932.
As a manager