Arms : Tierced in pairle reversed Vert Sable and Azure in chief a Garb and a Miner's Lamp Or and in base on Water barry wavy a Cargo Steamer affrontée proper.
Crest : On a Wreath Or and Azure a Pick and Spade in saltire Sable hafts downward and tied with a Ribbon Or.
Motto: By courage and faith
The arms were granted to the Seaham urban district council on September 28, 1951 and continued by the Easington District Council.
The arms show symbols for agriculture (garb), mining (lamp and crest) and shipping, the main activities in the area.
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