Koma-Mauch 400-day clock pendulum springs by Koma-Mauch Products suspension spring, mechanical namelengthmodelDriverthicknessmanufacturetypeitem No.suspension spring, mechanical124 mm10.0mm0.07mmKomaStandard 52070740 suspension spring, mechanical namelengthmodelDriverthicknessmanufacturetypeitem No.suspension spring, mechanical111 mm9.0mm0.05mmKomaMini 65070741 suspension spring, mechanical namelengthmodelDriverthicknessmanufacturetypeitem No.suspension spring, mechanical73 mm8.0mm0.05mmKomaBoy IV070742 suspension spring, quartz namelengthmodelDriverthicknessmanufacturetypeitem No.suspension spring, quartz61.6mm17.3mm0.04mmKomaW10070743 suspension spring, quartz namelengthmodelDriverthicknessmanufacturetypeitem No.suspension spring, quartz61.6mmW45/1417.3mm0.04mmKomaW45/14070745