Watch movement size conversion chart
Watch movement size conversion chart There are three major ways in which watch movements are measured Ligne, mm, and American. 1 ligne = 2.256 [...]
Understanding the Parts of a Watch
1. Train bridge 2. Third wheel 3. Upper third wheel pivot / hole jewel 4. Set lever screw (detent screw) 5. Transmission wheel (Crown wheel) 6. [...]
Understanding Pocket Watch Parts
1. Case screw 2. Upper pallet pivot hole jewel 3. Upper escape wheel hole jewel 4. Hairspring 5. Upper forth wheel hole jewel 6. Upper [...]