1947 edition, complete, 286 pages (16 chapters) in full color, with a digital table of contents allowing readers to jump to any of the 16 chapters. CHAPTERS: Preliminary Training Unit Training Unit Number 1 - Staking Balance Staffs Training Unit Number 2 - Truing Balance Wheels Training Unit Number 3 - Removal of Broken Balance Staffs Training Unit Number 3A - Turning Balance Staffs Training Unit Number 3B - Stem Making Training Unit Number 4 - Burnishing Balance Pivots Training Unit Number 5 - Poising Balance Wheels Training Unit Number 6 - Hairspring Truing Training Unit Number 7 - Hairspring Vibrating Training Unit Number 8 - Overcoiling Training Unit Number 9 - Watch Assembly Training Unit Number 9A - Mainspring Barrel Assembly (Power Unit) Training Unit Number 9B - Friction Jeweling Training Unit Number 10 - Escapement Training Unit Number 11 - Finishing
