A. Schild Calibre 1780/1781 Technical Data and Parts List
Complete technical specifications and parts documentation for A. Schild caliber 1780 and 1781 watch movements, covering production years 1780–1781. The caliber 1780 features a lever escapement movement with direct-sweep centre seconds at 21,600 vibrations per hour. Caliber 1781 adds an instantaneous date display visible through a dial window, with rapid date-correction capability. This technical data sheet provides full specifications in millimetres for all critical components including the balance cock, escapement, balance wheel, virole, hairspring, barrel, hands, sweep seconds needle, regulator, balance staff, mainspring, and dial elements. Detailed exploded views and comprehensive parts lists with numbered component references are included for both the base caliber 1780 and the specific date-mechanism parts unique to caliber 1781. Essential reference material for watchmakers and technicians working with these movements.
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Document Details
- Format
- Pages
- 3
- Size
- 4.3 MB
- Category
- Watchmaking