Presenting: Precision Timing of a High Grade Automatic Watch – Featuring Kari Halme, Guest Instructor

AMERICAN WATCHMAKERS-CLOCKMAKERS INSTITUTE

Presents:

Precision Timing of a High Grade Automatic Watch

Featuring Kari Halme, Guest Instructor

May 6th – May 10th, 2013

 

The purpose of this course is to teach the fundamentals and proper procedures of timing a high-grade automatic watch (Rolex caliber 1575). Topics covered will include key terms, COSC tolerances, influences on timing, dynamic poising, timing analysis, balance staff replacement and adjustment of the ETACHRON regulator system. The student will learn about different influences (proper cleaning, part condition, adjustments, etc.) on timing.

The course will also cover the full water-resistance testing procedure of a high-grade watch using the most reliable, modern testing equipment: Roxer Diabolic E, Roxer Natator 125 and Roxer Revelator R1.

Prerequisites:

  • Membership with AWCI
  • CW21 a plus
  • Minimum 3 years full-time experience in watch repair (and/or) having attended the following AWCI Courses:
    • Basic Watch Repair and/or
    • Automatic Watch Repair
  • Ownership of hand tools as per tool list below
  • Reading pages 99-188 of The Theory of Horology is essential prior to attending the course

 

Length of Course: 5 days


More specifically, the student will learn about:

  1. Key nomenclature of escapement and regulator parts
  2. Types of balance wheels and hairsprings
  3. Verification and diagnosis of the Swiss lever escapement
  4. Balance staffing
  5. Adjustment and truing of the balance wheel and the hairspring
  6. Adjustment of the ETACHRON regulator system
  7. Definition of key functions of the Swiss lever escapement
  8. Influences on timing
  9. Epilame application and escapement lubrication
  10. Overview of the official Swiss chronometer certification (COSC) procedure and its tolerances
  11. Static and dynamic poising
  12. Timing analysis and adjustments (Delta, etc.)

 

In addition, the student will:

  1. Learn the latest water-resistance testing procedure
  2. Have a hands-on experience using the Roxer Diabolic E, Roxer Natator 125 and Roxer Revelator R1

 

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