Felsa 4000N Watch Spare Parts: Comprehensive Guide for Collectors and Watchmakers
The Felsa 4000N is a sophisticated Swiss automatic watch movement favored for its robust construction and reliability. Measuring 11.5 lignes (approximately 26 mm) in diameter and about 5.55 mm in thickness, it features 17 to 25 jewels and operates at 18,000 vibrations per hour (vph). This calibre offers an automatic winding with sweep seconds and a power reserve of around 44 hours. Known for its yoke winding system and solid construction, the Felsa 4000N is ideal for vintage wristwatch restoration and daily wear.
Key Technical Specifications
Calibre: Felsa 4000N
Movement Type: Automatic, mechanical with sweep seconds
Jewels: 17/21/25 synthetic rubies
Frequency: 18,000 vph
Diameter: 26.00 mm
Thickness: 5.55 mm
Power Reserve: Approximately 44 hours
Winding Mechanism: Yoke winding system
Balance: Nickel screw balance with swan neck regulator
Shock Protection: Incabloc
Common Spare Parts
Balance Staff: Critical for stable oscillations and accurate timekeeping
Mainspring: New Old Stock (NOS) mainsprings recommended for consistent power and longevity
Rotor & Bearings: Central rotor with ball bearings ensuring efficient winding
Stem & Crown: Must fit precisely for winding, setting, and durability
Gear Train Components: Center wheel, third wheel, fourth wheel, and escape wheel for precise timekeeping
Hands & Dial Components: Compatible hour, minute, and sweep second hands for authentic restoration
Jewels: Synthetic rubies that reduce friction on pivots and escapement
Clicks & Springs: Ratchet wheels and click springs secure the winding mechanism
Bridges & Plates: Provide structural stability and proper alignment
Maintenance and Sourcing Tips
Confirm the “4000N” calibre marking before ordering parts to ensure compatibility
Use NOS or verified donor parts to preserve watch originality and collector value
Source parts from trusted vintage watch dealers and reputable online platforms
Employ Swiss-certified lubricants and professional servicing for longevity
Importance of Genuine Spare Parts
Guarantees precision, durability, and preservation of authenticity
Maintains the watch’s collector appeal and functional integrity
Supports expert restoration and reliable everyday use
Authentic spare parts are essential to preserve the Felsa 4000N’s legacy as a high-quality Swiss automatic calibre treasured 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