Favre-Leuba FL 257 Watch Spare Parts: Comprehensive Guide for Collectors and Watchmakers
The Favre-Leuba FL 257 is a manual wind mechanical movement from the mid-1960s, part of the prestigious 11.5 ligne calibre family. The movement is well-regarded for its reliability, featuring 17 synthetic jewels, a power reserve of approximately 48 hours, and operating at 18,000 vibrations per hour (vph). Its diameter measures about 25.6 mm, with a height of 3.1 mm, making it suitable for iconic vintage Favre-Leuba models.
Key Technical Specifications
Type: Manual wind mechanical
Calibre: FL 257
Jewels: 17 synthetic rubies
Diameter: 25.6 mm (11.5’’’)
Height: 3.1 mm
Frequency: 18,000 vibrations per hour
Power Reserve: Approximately 48 hours
Functions: Sweep seconds, date display
Common Spare Parts
Balance Staff: Critical for maintaining timing accuracy; compatible across FL 250 series watches
Mainspring: Replacement mainsprings supplied for FL 257 and related calibres, vital for consistent power delivery
Date Mechanism Components: Include date jumper, date corrector lever, and date wheels for reliable calendar function
Stem & Crown: Replacement winding stems and crowns fitting 11.5 ligne cases are available
Hands & Dials: Sweep seconds, minute, and hour hands, plus dial feet, with NOS or donor parts preferred for restoration
Gear Train: Center, third, fourth, and escape wheels that often interchange within the FL calibre family
Jewels: 17-jewel sets for pivot support and friction reduction
Plates & Bridges: Structural parts used in movement repair and restoration
Clicks & Springs: Essential click springs and ratchets for secure winding function
Maintenance and Sourcing Tips
Verify calibre “FL 257” marking to ensure parts compatibility
Source New Old Stock (NOS) or authentic donor components to preserve watch originality
Trusted vintage dealers, dedicated online supply stores, and watchmaker forums are reliable sources for parts
Use Swiss-recommended lubricants for optimal movement performance and longevity
Importance of Genuine Spare Parts
Ensures precision, longevity, and reliable operation
Maintains the watch’s authenticity and collector interest
Supports expert restoration preserving Favre-Leuba’s Swiss watchmaking heritage
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Watch Parts Enquiry
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Stem, Crown, Hands & Spares might be available for this movement.
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