BFG Cal. 410 Pocket Stopwatch Movement - Technical Data
Technical data sheet for the BFG Baumgartner Frères Cal. 410 pocket stopwatch movement. Covers specifications for this lever escapement mechanism (encasement diameter 44.70 mm, total diameter 45.45 mm), available in two configurations: intermediate stop with blocked zero-return, or intermediate stop with instantaneous zero-return. This workshop manual provides detailed technical specifications and dimensional data for the balance wheel, barrel, lever escapement system, mainspring, and stem assembly — essential reference material for repair technicians and watchmakers servicing this precision instrument.
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Document Details
- Format
- Pages
- 5
- Size
- 4.2 MB
- Category
- Watchmaking