Seaway Bank and Trust Company, Legacy Bank Branch Basic Info Reviews Routing Numbers Map & Direction Name: Seaway Bank and Trust Company, Legacy Bank Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 2102 West Fond Du Lac Milwaukee, Wisconsin 53206 Milwaukee County View other branches Phone: 414-343-6900 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer071001216YY071921707YN075017853YN From: To: