


Favre-Leuba FL 273 Watch Spare Parts: Expert Guide for Collectors and Watchmakers
The Favre-Leuba FL 273 is a Swiss manual winding mechanical movement from the 11.5 ligne calibre family, known for its robust build and precision. The movement measures 25.60 mm in diameter with a height of approximately 5.7 mm. It runs at a frequency of 21,600 vibrations per hour (vph) and is available in 17- or 21-jewel variants. The FL 273 is notable for its hidden winding gear and sweep seconds hand. Its design includes day and date functions with quickset features, making it a sought-after calibre for vintage Favre-Leuba watches and professional restorations.
Key Technical Specifications
Type: Manual wind mechanical
Calibre: FL 273
Jewels: 17 or 21 synthetic rubies
Diameter: 25.60 mm (11.5 ligne)
Height: 5.7 mm
Frequency: 21,600 vibrations per hour
Functions: Sweep seconds, day, and date with quickset
Winding Gear: Hidden winding gear
Common Spare Parts
Balance Staff: Critical for durability and precision; compatible within FL series
Mainspring: Replacement mainspring for steady power, shared with related FL calibres
Date and Day Mechanism: Date jumper, day and date corrector levers, date wheels essential for calendar functions
Stem & Crown: Winding stems and crowns suited for 11.5 ligne cases
Hands & Dial Components: Sweep seconds, hour, and minute hands, including dial feet; NOS and donor parts preferred
Gear Train: Center, third, fourth, and escape wheels compatible within Favre-Leuba calibres
Jewels: Synthetic rubies for reducing pivot friction and enhancing longevity
Plates & Bridges: Structural components essential for movement servicing and repair
Clicks & Springs: Click springs and ratchets ensuring winding reliability
Maintenance and Sourcing Tips
Verify “FL 273” marking on the movement for exact parts matching before purchase
Use New Old Stock (NOS) or verified donor components to maintain authenticity
Acquire parts from trusted vintage dealers, online specialist stores, and watchmaker communities
Apply Swiss-certified lubricants to maximize performance and lifespan
Importance of Genuine Spare Parts
Guarantees accurate timekeeping, increased durability, and long-lasting function
Preserves the watch’s historical integrity and Swiss craftsmanship
Supports expert servicing and dependable daily wear
Using genuine spare parts sustains the Favre-Leuba FL 273 as a distinguished example of Swiss mechanical watchmaking excellence.
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Stem, Crown, Hands & Spares might be available for this movement.
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