Chelsea Born in Aberdeen, and raised in Gardenstown, a fishing village in the North East Aberdeenshire coast, He played the full 90 minutes and earned praise from
José Mourinho for his performance. On 15 May 2005 Watt made his
Premier League debut coming on as an 89th-minute substitute for
Jiri Jarosik in the away fixture with
Newcastle United. The game ended 1–1, with Watt playing alongside the likes of
Frank Lampard,
Ricardo Carvalho,
Claude Makélélé,
Joe Cole and
Eiður Guðjohnsen. In November 2005 Watt spent a month on loan to
Barnsley, for whom he made three starts, scoring an injury time equaliser against
Rotherham United.
Swansea City Shortly after returning to Chelsea he was allowed to leave the
Premier League club and joined Swansea on 10 January 2006. Watt joined Inverness Caledonian Thistle on a season long loan to regain his match fitness. He made his debut in the
Scottish League Cup against
Arbroath. Despite a fairly solid performance, he never played again for the first team and left the club to return to
Swansea City. Watt suffered persistent shoulder injuries during his time with Swansea, which meant that his contract was not extended when it expired at the end of the 2007–08 season.
Ross County Following a successful trial, he signed a two-year deal with
Ross County in August 2008. Watt made his debut for Ross County on 16 November 2008 in the
Challenge Cup Final against
Airdrie United. He scored his first goal for the club against Dunfermline on 13 February 2010. He scored his first goal for the club in a 1–0 win over Darlington on 24 August 2010, On 18 July Watt joined
Mansfield Town on trial. He signed for the club on 2 August 2011.
Maidstone United On 15 February 2013 Watt signed an initial month's loan for
Maidstone United, the player dropping down two levels to play for his adopted hometown, making six appearances before signing permanently on 18 March 2013. Watt captained Maidstone to the Isthmian league title in the 2014–15 season. On 16 November 2015, Watt was released by the club.
Hemel Hempstead Town Several weeks after being released Watt joined
Hemel Hempstead Town making his debut on 1 December 2015 in the second round of the Herts Senior Cup, in a 0–3 defeat to
Bishop's Stortford. His league debut was four days later against
Ebbsfleet United, ending in a 1–2 home defeat. Watt's third and final game for the club came a week later when he captained Hemel in a 7-4 FA Trophy defeat at
Eastbourne Borough.
Leatherhead On 14 December 2015 Watt joined
Leatherhead as player/assistant manager ==Coaching career==