MS-310 Loop Mainspring 3/4" X .016" X 108"
Frankenmuth Clock Company
SKU: MS-310
MS-310 Loop End Mainspring
Often used on Seth Thomas #89 Movements (Ingraham & Sessions sometimes)
3/4" X .016" X 108"
19mm X .41mm X 2743mm X 50mm barrel
Loop End
High Quality. Made in Germany.
