Felsa 4017N Watch Spare Parts: Detailed Guide for Collectors and Watchmakers
The Felsa 4017N is a Swiss manual wind watch movement introduced around 1962 as part of the esteemed Bidynator family. It measures 11.5 lignes (approximately 26.3 mm) in diameter and 3.6 mm in thickness. This calibre is equipped with 21 synthetic jewels, operates at 18,000 vibrations per hour (vph), and features Incabloc shock protection with a monometallic screw balance. The movement includes a quickset date mechanism, sweep seconds, and an adjustable stud holder, making it a highly reliable and valued calibre for vintage manual wind watches.
Key Technical Specifications
Calibre: Felsa 4017N
Movement Type: Manual wind
Jewels: 21 synthetic rubies
Frequency: 18,000 vph
Diameter: 26.3 mm (11.5 lignes)
Thickness: 3.6 mm
Functions: Hours, minutes, sweep seconds, quickset date
Shock Protection: Incabloc
Balance: Monometallic screw balance with Incabloc system
Common Spare Parts
Balance Staff: Critical for stable balance wheel oscillations and accurate timekeeping
Mainspring: New Old Stock (NOS) recommended for reliable power delivery and durability
Stem & Crown: Precise fit essential for winding and setting functions
Gear Train Components: Center, third, fourth, and escape wheels for smooth and efficient power transmission
Date Mechanism Parts: Includes date ring, jumper spring, and quickset components for calendar function
Hands & Dial Components: Compatible hour, minute, and sweep second hands for faithful restoration
Jewels: Synthetic rubies reduce friction and wear at key pivot points
Clicks & Springs: Ratchet wheels and click springs maintain secure winding and smooth operation
Bridges & Plates: Provide structural integrity and proper component alignment
Maintenance and Sourcing Tips
Confirm the “4017N” calibre marking before purchasing parts to ensure compatibility
Prefer NOS or verified donor parts to maintain original watch value
Source parts from trusted vintage dealers and reputable online platforms
Apply Swiss-certified lubricants and professional servicing for longevity
Importance of Genuine Spare Parts
Guarantees precision, durability, and authenticity preservation
Maintains the watch’s collector appeal and mechanical integrity
Supports expert repairs and reliable daily wear
Using genuine spare parts is essential to preserve the Felsa 4017N’s legacy as a high-quality and precise Swiss manual wind calibre prized 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]
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