


Felsa 4010N Watch Spare Parts: Essential Guide for Collectors and Watchmakers
The Felsa 4010N is a prestigious Swiss manual wind watch movement belonging to the Bidynator family. It measures 11.5 lignes (approximately 26.00 mm) in diameter with a thickness of around 5.6 mm. This calibre features 17 or 21 synthetic jewels and operates at a frequency of 18,000 vibrations per hour (vph), offering a power reserve close to 44-47 hours. Known for its precision and reliability, the movement includes features such as sweep seconds and various mounting options, making it a favorite among vintage watch enthusiasts.
Key Technical Specifications
Calibre: Felsa 4010N
Movement Type: Manual wind
Jewels: 17 or 21 synthetic rubies
Frequency: 18,000 vph
Diameter: 26.00 mm
Height: 5.6 mm
Power Reserve: Approx. 44-47 hours
Functions: Hours, minutes, sweep seconds
Common Spare Parts
Balance Staff: Needs to be precise for stable oscillations and timekeeping
Mainspring: New Old Stock (NOS) mainsprings recommended for consistent power output and durability
Stem & Crown: Exact fit essential for winding and accurate time setting
Gear Train Components: Includes center, third, fourth, and escape wheels for smooth transmission
Hands & Dial Components: Compatible hour, minute, and sweep second hands for authentic restoration
Jewels: Synthetic rubies reduce friction at critical pivots
Clicks & Springs: Ratchet wheels and click springs secure efficient winding
Bridges & Plates: Structural components for correct alignment and support
Maintenance and Sourcing Tips
Confirm the “4010N” calibre marking before ordering parts to ensure compatibility
Use NOS or authenticated donor parts to retain originality and collector value
Source from trusted vintage watch parts dealers and reputable online platforms
Employ Swiss-certified lubricants and professional servicing for optimal longevity
Importance of Genuine Spare Parts
Ensures precise mechanical function, durability, and authenticity preservation
Maintains the watch’s collector appeal and performance integrity
Supports expert repairs and reliable daily use
Using genuine spare parts is crucial to maintain the Felsa 4010N’s reputation as a high-quality Swiss manual wind calibre embraced by watchmakers and collectors 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