Longines L.650.2/L.651.2/L.651.3 Watch Movement Technical Data
Technical data sheet for Longines L.650.2, L.651.2, and L.651.3 chronograph movements—precise specifications for watchmakers and repair technicians servicing these ETA-based calibers. Details movement geometry (28 mm diameter, 6.10 mm height, 26,000 beats per hour, 42-hour power reserve, 37 jewels, 53° balance lift angle), dial configurations, and complete movement plate layouts. Comprehensive interchangeability reference table cross-references all components with ISO standards and material designations across all three caliber variants. Includes detailed parts illustrations and technical drawings for accurate identification and maintenance work.
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Document Details
- Format
- Pages
- 4
- Size
- 2.9 MB
- Category
- Watchmaking