Longines Calibre 431 Movement Parts List
Longines Calibre 431 automatic movement parts catalog with detailed component diagrams and specifications. This technical reference covers the complete mechanical assembly of this robust 11.5-ligne (25.60mm diameter) platform: mainplates and train bridges, gear train wheels, balance wheel and hairspring assemblies, jewel settings, screws, hands, dial components, and associated parts. Component identification diagrams illustrate all parts with reference numbers for accurate sourcing and identification. Multiple movement variants documented: center-second, sweep-second, and calendar-equipped versions. Rated at 17 jewels and 36,000 vibrations per hour. Essential reference for watchmakers identifying components, sourcing replacements, or understanding movement architecture.
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
- 3
- Size
- 620.0 KB
- Category
- Watchmaking