Felsa 4520 Watch Spare Parts: Essential Guide for Collectors and Watchmakers
The Felsa 4520 is a manual wind watch movement widely recognized for its reliability and precision in ladies’ wristwatches. This calibre measures approximately 6 lignes (around 13.75 mm) and is designed primarily for smaller watch cases. Known for simplicity and robust construction, it features 15 to 17 jewels and provides basic functions — hours and minutes indication — suitable for elegant timepieces. The movement’s fine components require accurate and genuine spare parts for optimal performance and longevity.
Key Technical Specifications
Calibre: Felsa 4520
Movement Type: Manual wind
Jewels: 15-17 synthetic rubies
Diameter: Approximately 13.75 mm (6 lignes)
Functions: Hours and minutes only
Power Reserve: Generally suited for standard daily use
Common Spare Parts
Balance Staff: Essential for precise balance wheel oscillation and consistent timing
Mainspring: New Old Stock (NOS) parts preferred for steady power delivery
Stem & Crown: Designed for precise fit, enabling smooth winding and setting
Gear Train Components: Include wheels and pinions suited for this compact calibre
Hands & Dial Components: Compatible hour and minute hands for restoration
Jewels: Synthetic rubies provide low friction at critical pivot points
Clicks & Springs: Maintain winding mechanism stability and smoothness
Maintenance and Sourcing Tips
Verify calibration marking “4520” when sourcing parts to ensure accuracy
Prioritize NOS or verified donor components for authenticity
Source from trusted vintage watch specialists and reputable suppliers
Use appropriate Swiss-certified lubricants and employ professional servicing
Importance of Genuine Spare Parts
Guarantees mechanical precision and watch longevity
Ensures authenticity and maintains collector value
Supports expert repairs and reliable daily wear
By using genuine spare parts, the Felsa 4520 movement retains its performance and collector appeal, preserving this elegant Swiss movement’s legacy among watchmakers and enthusiasts alike.
For any Watch Spare Parts inquiry, Email us for rate and availability: [email protected]
Watch Parts Enquiry
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Stem, Crown, Hands & Spares might be available for this movement.
Email us for rate and availability: [email protected]
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