Felsa 28 Watch Spare Parts: Detailed Guide for Collectors and Watchmakers
The Felsa 28 is a vintage Swiss manual wind movement celebrated for its robust engineering and nuanced construction. Featuring a direct-driven center second, 17 synthetic jewels, and operating at 18,000 vibrations per hour (vph), it was built with a unique two-layer structure and often graced with gold-toned chatons and a nickel screw balance for heightened reliability. Its 10.5 ligne size made it suitable for mid-century men’s wristwatches, and two three-legged shock protection systems were employed for extra durability.
Key Technical Specifications
Calibre: Felsa 28
Movement Type: Manual wind, center seconds
Jewels: 17 synthetic rubies
Frequency: 18,000 vph
Diameter: 10.5 lignes
Shock Protection: Incabloc Ruby-Shock or Trishock system
Balance: Nickel screw balance with clockwise hairspring
Winding: Yoke winding mechanism
Lift angle: 52.23°
Power Reserve: Estimated 36–38 hours
Essential Spare Parts
Balance Staff: Critical for sustained accuracy and smooth oscillation
Mainspring: NOS mainsprings preferred for reliable power reserve and longevity
Stem & Crown: Required for secure manual winding and setting, compatibility crucial
Gear Train Components: Includes center wheel, minute wheel, escape wheel vital for precision
Hands & Dial Components: Matching original hands and dial feet for mid-century aesthetics
Jewels: High-quality synthetic rubies minimize friction at critical pivots
Clicks & Springs: Ratchet wheels and click springs ensure winding system efficiency
Bridges & Plates: Maintain movement alignment and provide long-term stability
Sourcing and Maintenance Tips
Confirm the “28” calibre stamp before acquiring spare parts to prevent fitment issues
Opt for NOS or genuine donor components to maintain originality and enhance value
Reliable vintage watch part dealers and online technical catalogues are recommended sources
Apply Swiss-certified lubricants and observe industry-standard cleaning templates for heightened longevity
Importance of Genuine Spare Parts
Guarantees precision, durability, and original value preservation
Maintains the watch’s collector appeal and mechanical authenticity
Supports expert servicing and daily wear without compromise
Genuine parts are vital to sustain the Felsa 28’s legacy as a hallmark of Swiss technical advancement and craftsmanship.
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