Master Watchmaking Lesson 21

Posted By: Oleksandr74
Date: Dec. 20, 2011

Thomas Sweazey, Byron Sweazy - Master Watchmaking Lesson 21
Chicago School of Watchmaking | 1962 | ISBN: N/A | English | 15 pages | PDF | 7 MB

A home study booklet on watch repair. Lesson 21: Principles of the Lever Escapement. Sections 395-403.
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