![Master Watchmaking Lesson 19](/media/uploads/2019/2/4/master-watchmaking-lesson-19.jpg)
Master Watchmaking Lesson 19
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Thomas Sweazey
A home study booklet on watch repair. Lesson 19: Colleting Hairsprings. Sectons 385-386.
A home study booklet on watch repair. Lesson 19: Colleting Hairsprings. Sectons 385-386.