Seaham opened their league campaign with a disappointing loss at Blyth.
They held their hosts out for the opening quarter but tries in the 24th and 27th minute - one converted - saw them trail by 12.
They had a chance to narrow the lead on 32 minutes when pressure from Glen Hardie forced a penalty. Unfortunately, the wind steered James Bromley's kick right of the posts.
Their woes were compounded in the 39th minute when they fumbled a John Dixon tapdown from a 5-metre lineout and the Blyth 8 pounced on it for a converted try.
Blyth were temporarily reduced to 14 men within a minute of the restart when their left wing was adjudged to have raised his elbow going into contact.
Seaham had a few chances to battle their way back into the game but were hampered by poor handling and a strong Blyth defence.
The hosts regrouped and finally managed to score a further brace of converted tries to lead 33-0.
Ian Chapman saw yellow on 77 minutes for leading with his elbow but Seaham defended bravely until the end and kept Blyth out.