



Felsa 4018 Watch Spare Parts: Detailed Guide for Collectors and Watchmakers
The Felsa 4018 is a Swiss manual wind watch movement belonging to the Bidynator family, introduced around the 1950s. It measures 11.5 lignes (approximately 26.3 mm) in diameter, with a thickness of about 4.3 mm. The calibre features 17 to 21 synthetic jewels and operates at 18,000 vibrations per hour (vph), offering a power reserve of approximately 47 hours. It provides hours, minutes, sweep seconds, and a quickset date function for convenience and precision.
Key Technical Specifications
Calibre: Felsa 4018
Movement Type: Manual wind
Jewels: 17 or 21 synthetic rubies
Frequency: 18,000 vph
Diameter: 26.3 mm (11.5 lignes)
Thickness: 4.3 mm
Power Reserve: Around 47 hours
Functions: Hours, minutes, sweep seconds, quickset date
Common Spare Parts
Balance Staff: Vital for stable oscillations and accurate timekeeping
Mainspring: New Old Stock (NOS) mainsprings recommended for consistent power delivery
Stem & Crown: Precision fit essential for manual winding and time setting
Gear Train Components: Center, third, fourth, and escape wheels ensure smooth mechanical operation
Date Mechanism: Date wheel, jumper springs, quickset components for calendar function
Hands & Dial Components: Compatible hour, minute, and sweep second hands for authentic restoration
Jewels: Synthetic rubies reduce friction at key pivot points
Clicks & Springs: Ratchet wheels and click springs secure winding and smooth operation
Bridges & Plates: Provide structural stability and correct alignment
Maintenance and Sourcing Tips
Confirm the “4018” calibre marking to ensure accurate parts compatibility
Use NOS or verified donor components to maintain watch originality and value
Source from trusted vintage watch parts dealers and reputable online platforms
Use Swiss-certified lubricants and expert servicing for longevity
Importance of Genuine Spare Parts
Ensures precision, durability, and preservation of authenticity
Maintains collector appeal and mechanical integrity
Supports expert repairs and reliable daily use
Genuine spare parts are essential to preserve the Felsa 4018’s legacy as a reliable manual wind calibre cherished by collectors and watchmakers 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]
Mobile/WhatsApp: +91- 9841 360 340