Watch 155

Watch 155: Fundamentals on Quartz Watches

November 4, 2025 by James Sprague

Watch 155: Fundamentals on Quartz Watches The purpose of this course is to teach the student the fundamentals of modern quartz watch troubleshooting, diagnostics and service. […]

Watch 155: Fundamentals on Quartz Watches

September 17, 2019 by American Watchmakers - Clockmakers Institute

Watch 155: Fundamentals on Quartz Watches The purpose of this course is to teach the student the fundamentals of modern quartz watch troubleshooting, diagnostics and service. […]

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American Watchmakers – Clockmakers Institute