One Piece Stem for Eta 255.111 and 256.111
Technical schematic for the one-piece stem assembly used in ETA calibre 255.111 and 256.111 watch movements. The detailed diagram shows the complete stem (405) and clutch wheel (407) configuration, including the threaded engagement section and crown interface geometry. An essential reference for watchmakers performing stem replacement, service procedures, or movement restoration on these calibres. Includes dimensionally accurate component layouts for proper reassembly and compatibility verification.
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Document Details
- Format
- Pages
- 1
- Size
- 793.9 KB
- Category
- Watchmaking