Favre-Leuba FL 251 Watch Spare Parts: Complete Guide for Collectors and Watchmakers
The Favre-Leuba FL 251 is a classic Swiss manual wind movement introduced in the early 1960s. Known for its slim profile and twin-barrel design, the FL 251 offers a centrally located sweep seconds hand, exceptional reliability, and a long power reserve. Key specs include a diameter of 25.6 mm, height of 3.0 mm, 17 jewels, and a 48-hour power reserve at a frequency of 18,000 vph.
Key Technical Specifications
Type: Manual wind movement
Calibre: FL 251
Jewels: 17 synthetic rubies
Diameter: 25.6 mm
Height: 3.0 mm
Frequency: 18,000 vibrations per hour
Twin Barrels: Extended power reserve (often up to 48-50 hours)
Functions: Central sweep seconds
Common Spare Parts
Balance Staff: Dedicated staff available for FL 251 to ensure precise oscillation
Mainspring: Twin mainsprings are a distinguishing feature; compatible replacements should be sourced specifically for FL 251
Stem & Crown: Replacement winding stem (e.g., part #401) and crowns are frequently sourced for routine servicing
Hand Set: Central sweep seconds hand, minute and hour hands—NOS and donor sets are available
Wheels & Gears: Gear train components (barrel, center, third, fourth, escape wheel, and intermediate gears)
Jewels: Set of 17 synthetic rubies for pivots and bearings
Plates & Bridges: Available through specialist parts dealers or donor movements when structural repair is needed
Clicks & Springs: Specific to FL series, including click springs and ratchet components
Maintenance and Sourcing Tips
Confirm calibre “FL 251” engraved on movement to match parts accurately
Parts available from vintage watch suppliers, dedicated online watch material dealers, and auction listings
NOS (new old stock) is favored for preservation and collector value
Use Swiss-quality lubricants for optimal function
For rare components, engage with Favre-Leuba-expert forums and established dealers
Significance of Using Genuine Spare Parts
Guarantees accurate timekeeping, extended durability, and collector value
Maintains the watch’s originality and Swiss horological prestige
Supports expert repair and everyday reliability
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Stem, Crown, Hands & Spares might be available for this movement.
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