Seiko Equivalent ECG/EKG Recording Chart Paper Seiko TP57B45 equivalent $2.29 Seiko TP57B100 and TP201-111-25 equivalent $1.89 Seiko TP110B80 equivalent $3.89 Seiko TP112B80 equivalent $2.35 Copyright 2003-2005, 2006 A1Cardiology.com