Horolovar 3/4" X 0.017" X 45"
MS-19x36 - Horolovar Mainspring (19 x 36)
3/4 inches x .017 inches x 45 inches.
19mm x .43mm x 1143 x 36mm Barrel
400 Day Anniversary Mainspring.
Designed for use in anniversary clocks but can be used in others.
High Quality. Made in Germany.
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