Pep Guardiola’s side confirmed our place in the showpiece by beating Brighton and Hove Albion 1-0, having defeated Rotherham, Burnley, Newport and Swansea in the previous rounds.
Gabriel Jesus' early strike proved the difference between the sides at Wembley Stadium, as City became the first side to score 20 goals within a single FA Cup campaign since Chelsea back in 2011/12 - our best return since the 1980/81 season.
Watford reached the Final stage by coming from 2-0 down to beat Wolverhampton Wanderers 3-2 after downing Woking, Newcastle, Queens Park Rangers and Crystal Palace en route.
The final will be played at Wembley Stadium on Saturday 18 May 2019 with the kick-off time still to be decided.
City are looking to win the competition for the sixth time, having last triumphed in 2011 with Yaya Toure's winner against Stoke.