Hi Adam,
Have you seen the listing page for the clock...
http://www.bangorcivicsociety.org.uk/pages/listedindex/1%20(48).htmAt the junction with Garth Road; island site. Built 1886-7; architect, A, Neill of Leeds and builder T J Humphreys of Bangor. "Erected and Presented to the city of Bangor by Aldn Thomas Lewis J P Garthewen During his Mayorality as a Token of his interest in the Welfare of the City" (inscription on tablet to SE side).