Felsa 4017 Watch Spare Parts: Complete Guide for Collectors and Watchmakers
The Felsa 4017 is a highly regarded Swiss manual wind watch movement from the Bidynator series, introduced around 1960. It measures 11.5 lignes (approximately 26.3 mm) in diameter and features 17 or 21 synthetic jewels. Operating at 18,000 vibrations per hour (vph), it offers a power reserve of approximately 47 hours. The movement is lauded for its precision, durability, and includes sweep seconds functionality, making it popular among vintage watch enthusiasts and professional restorers.
Key Technical Specifications
Calibre: Felsa 4017
Movement Type: Manual wind
Jewels: 17 or 21 synthetic rubies
Frequency: 18,000 vph
Diameter: 26.3 mm (11.5 lignes)
Height: 3.6 mm
Power Reserve: Approx. 47 hours
Functions: Hours, minutes, sweep seconds
Common Spare Parts
Balance Staff: Essential for precise oscillations and time accuracy
Mainspring: New Old Stock (NOS) mainsprings recommended for consistent power delivery
Stem & Crown: Precise fit necessary for winding and setting time
Gear Train Components: Center, third, fourth, and escape wheels ensure smooth power transmission
Hands & Dial Components: Compatible hour, minute, and sweep second hands for authentic restoration
Jewels: Synthetic rubies reduce friction and wear on pivot points
Clicks & Springs: Ratchet wheels and click springs secure winding and operation
Bridges & Plates: Provide structural support and accurate alignment
Maintenance and Sourcing Tips
Verify the “4017” calibre marking before ordering parts to ensure compatibility
Prefer NOS or verified donor parts to maintain watch originality and collector value
Source parts from reputable vintage watch dealers and trusted online platforms
Apply Swiss-certified lubricants and professional servicing for optimal longevity
Importance of Genuine Spare Parts
Guarantees mechanical precision, durability, and authenticity
Maintains collector appeal and mechanical integrity
Supports expert servicing and reliable daily use
Using genuine spare parts is crucial to uphold the Felsa 4017’s legacy as a reliable and precise Swiss manual wind calibre treasured by watchmakers and collectors alike.
For any Watch Spare Parts inquiry, Email us for rate and availability: [email protected]
Watch Parts Enquiry
* If you are unable to fill out any of the required information fields, please type “N/A”.
Stem, Crown, Hands & Spares might be available for this movement.
Email us for rate and availability: [email protected]
Mobile/WhatsApp: +91- 9841 360 340