Kern400-day clock pendulum springs by Kern Productspendulum springs, mechanical namelengthDrivermanufacturemodelitem No.pendulum springs, mechanical127 mmKernS10070720pendulum springs, mechanical namelengthDrivermanufacturemodelitem No.pendulum springs, mechanical84 mmKernM10A070721pendulum springs, mechanical namelengthDrivermanufacturemodelitem No.pendulum springs, mechanical86 mm8.0mmKernM10N070722pendulum springs, mechanical namelengthDrivermanufacturemodelitem No.pendulum springs, mechanical79 mmKernP10070723pendulum springs, quartz namelengthDrivermanufacturemodelitem No.pendulum springs, quartz102 mm26.0mmKernQS10070725pendulum springs, quartz namelengthDrivermanufacturemodelitem No.pendulum springs, quartz82 mm26.0mmKernQM10070726pendulum springs, quartz namelengthDrivermanufacturemodelitem No.pendulum springs, quartz82 mm26.0mmKernQP10070727pendulum springs, slim-line namelengthDrivermanufacturemodelitem No.pendulum springs, slim-line83 mmKernNeu WA070717