Watford MR station opened on 2 November 1925, with MR electric trains to and LNER steam trains to for the first few months. The "Watford Observer" commented on the opening that the new station was "likely to have a much greater effect on the town than is at present realised. Just as trade follows the flag, so population follows the railway". Posters published by the MR in 1925 promoting the new route "by Metro to Watford" depicted Watford High Street on market day, belying the remote location of the station.