Mainspring 3/4 by 0.0145 by 120 Inch
September 23, 2007 . by BillEmpire Clock Company offers a mainspring specified as 3/4 inch wide, 0.0145 inch thick and 120 inches long. It is part number 280-19-009 and is listed in their parts catalog. Their web site gives directions for ordering their clock parts catalog. This is a good mainspring for many Ansonia clocks.