For Japanese and Korean 31-Day clocks. Loop End. Size: 3/4″ (19.05mm) width x .0165″ (.42mm) strength x 170″ (4318mm) length.
31 Day Commercial Mainspring – Loop End – 3/4″ x .015 x 170″
$7.95
For Japanese and Korean 31-Day clocks. Loop End. Size: 3/4″ (19.05mm) width x .0165″ (.42mm) strength x 170″ (4318mm) length.