Watkins played Rugby Union football as an outside-half for the Army, Cardiff RFC and Glamorgan Wanderers. He became president of the Welsh Rugby Union in 1993, overseeing the switch from the amateur era to professionalism and the move from club to regional rugby in Wales. He stepped down on 26 September 2004 as the first man since Sir David Rocyn Jones in 1953 to hold office for more than one season. His 11 years of service made him the second longest serving president in the WRU's 123-year history.