Easy repair for a broken mainspring on 31 Day clocks. This replacement 31 day arbor, mainspring & barrel complete, cuts repair time by half. Arbor length is 34mm and can easily be cut if required.

These replacements will fit the majority of  31 Day Chinese clocks, but will NOT fit 31 Day open spring korean clocks.

31 Day ratchet wheels & suspension spring assembly.

These replacements will fit the majority of  31 Day Chinese clocks, but will NOT fit 31 Day open spring korean clocks

SAFETY WARNING!!!

REMEMBER TO MAKE SURE ALL MAINSPRINGS ARE WOUND DOWN FULLY BEFORE TRYING TO REPLACE RATCHET WHEELS.