Omega Calibre 1861A Technical Guide and Service Manual
Complete technical guide for the Omega 1861A movement, a 12-ligne chronograph caliber with 18 jewels and 48-hour power reserve. Contains detailed disassembly and assembly procedures organized in four sections: hand-setting mechanism, basic movement and escapement, chronograph mechanism, and hour counter assembly. Includes lubrication specifications, control checks (CONTR. 1-5) with technical diagrams, gear penetration adjustments, heart-piece tuning, and functional verifications for chronograph and hour counter. Features precision adjustment procedures with specific measurements and eccentric adjustments for clutch wheels 1701-1702. Documentation covers tools, spare parts lists, and case-type dependent components with extension specifications.
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Document Details
- Format
- Pages
- 17
- Size
- 2.5 MB
- Category
- Horlogerie