Born in Aberdeen, and raised in Gardenstown, a fishing village in the North East Aberdeenshire coast,[1] Watt began his career with Chelsea, making his debut against Scunthorpe United in the FA Cup in January 2005.

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.

Watt suffered persistent shoulder injuries during his time with Swansea,[4] which meant that his contract was not extended when it expired at the end of the 2007–08 season.

However Woods was eventually sacked midway through the season and was replaced by Rob Scott and Paul Hurst who dropped Watt from the first team as he went on to only feature in the pair's first match in charge.

[15] Several weeks after being released Watt joined Hemel Hempstead Town[16] 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.