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Loop Mainspring-5/16" X 0.15" X 42"

Loop Mainspring-5/16" X 0.15" X 42"

  • 1950

MS-STshoulder

Loop End Mainspring

11/16" X 0.014" X 120"

17.5mm X .36mm X 3048mm X 50mm barrel

Often used on Seth Thomas T& S Shoulder movements

High Quality. Made in Germany

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