
Longines L990.1 L990.2 Assembly and Lubrication Guide
Technical assembly and maintenance documentation for Longines L990.1 and L990.2 watch movements. Contains detailed step-by-step instructions for reassembly of pivots, correctors, escapement components, gear wheels, balancer-spiral assemblies, and shock absorbers. Includes lubrication plan showing specific lubrication points and types (Lo 125, Synta-Visco-Lube, Microtime Watch) for various movement components. Features multiple technical photographs with component reference numbers and detailed assembly sequences.
Documentation must be downloaded on a computer (PC, Mac, or Linux).
Do not use a smartphone or tablet to download documentation; they generally lack sufficient memory capacity to handle large files, and few users know how to locate the download folder on these devices.
Once downloaded, you can use it right away and even print the pages you need, or use your smartphone in photo mode to translate into the language of your choice: Google Translate
Document Details
- Format
- Pages
- 4
- Size
- 3.7 MB
- Category
- Horlogerie