Felsa 4024 Watch Spare Parts: Detailed Guide for Collectors and Watchmakers
The Felsa 4024 is a vintage manual wind watch movement produced from 1927-1936, featuring classic Swiss construction. Measuring approximately 17.5 mm (7.75 lignes) in diameter, the movement is known for its reliability, gold sunk settings, cap-jewelled escape wheel, and robust stem mechanism. The calibre offers functions such as hours, minutes, and sub-seconds, occasionally with a date feature. For long-term use and restoration, genuine and high-quality spare parts are crucial.
Key Technical Specifications
Calibre: Felsa 4024
Movement Type: Manual wind
Jewels: Typically 15-17 (incl. cap jewels for the escape wheel)
Frequency: 18,000 vph (typical for Felsa movements)
Diameter: 17.5 mm (7.75 lignes)
Functions: Hours, minutes, sub-seconds (and date on some variants)
Features: Sunk gold settings, bimetallic screw balance, Breguet hairspring, negative stem setting
Common Spare Parts
Balance Assembly: Complete balance and staff, including hairspring, for precision regulation
Mainspring: NOS mainspring (commonly 1.70 mm wide, 0.175 mm thick, 16.0 mm long) for consistent power delivery
Barrel and Cap: For mainspring containment and power transmission
Barrel Arbor: Supports the barrel in the movement
Stem & Crown: Secure fit for smooth winding and accurate setting
Gear Train Components: Center, third, fourth wheels for efficient motion transfer
Hands & Dial Parts: Period-correct hour, minute, sub-seconds hands
Clicks & Springs: Ratchet wheels, click springs, and setting levers for winding functionality
Jewel Settings: Including balance, center, and escapement jewels (upper/lower, cap-stone types)
Minute Work & Setting Components: Cannon pinion, clutch wheel, set bridge, set wheels for reliable hand setting
Maintenance and Sourcing Tips
Always match parts with the “4024” calibre marking for compatibility
Prefer NOS or reliable donor parts to maintain authenticity
Source from reputable vintage part dealers or trustworthy online stores
Use Swiss watch lubricants and consider professional servicing for longevity
Importance of Genuine Spare Parts
Maintains historical accuracy and collector value
Ensures mechanical reliability and precise operation
Supports successful expert repairs and daily wear
Genuine spare parts are essential to preserve the Felsa 4024’s legacy and maintain functionality for collectors and professional watchmakers.
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]
Mobile/WhatsApp: +91- 9841 360 340