23 x 0.35 x 35 Clock Mainspring
REPLACEMENT CLOCK MAINSPRING
TOP QUALITY GERMAN MADE SPRING
23mm high - 0.35mm thick spring (strength) - 35mm barrel diameter (1500L).
Made from quality steel & used by professional clockmakers.
Many professional clockmakers replace a clocks mainspring not only when it breaks but as part of a complete service.
A mainspring winder is advised as removal and fitting without one can cause damage or injury.
100's of other sizes stocked.