Felsa 690 Watch Spare Parts: Essential Guide for Collectors and Watchmakers
The Felsa 690 is a significant Swiss automatic watch movement known as part of the Bidynator series—the first to feature bi-directional winding technology. Introduced in 1947, this calibre marked a major innovation in wristwatch self-winding mechanisms. It measures 11.5 lignes (approximately 26 mm) in diameter and operates at 18,000 vibrations per hour (vph), equipped with 17 jewels and Incabloc shock protection, making it a durable and precise movement highly valued by collectors and horologists.
Key Technical Specifications
Calibre: Felsa 690 (Bidynator series)
Movement Type: Automatic, mechanical with bi-directional winding
Jewels: 17 synthetic rubies
Frequency: 18,000 vph
Diameter: 26 mm
Shock Protection: Incabloc
Balance: Nickel screw balance with swan neck adjustment
Power Reserve: Approximately 43-44 hours
Common Spare Parts
Balance Staff: Vital for stable balance wheel oscillations and accuracy
Mainspring: New Old Stock (NOS) mainsprings are recommended for consistent power and longevity
Rotor & Bearings: Central rotor with ball bearings essential for efficient automatic winding
Stem & Crown: Correct sizing ensures efficient manual winding and time setting
Gear Train Components: Includes center, third, fourth, and escape wheels necessary for precision timekeeping
Hands & Dial Components: Compatible hour, minute, and sweep second hands for authentic restoration
Jewels: Synthetic rubies reduce friction and wear on critical pivots
Clicks & Springs: Secure ratchet wheels and click springs for winding stability
Bridges & Plates: Provide stable support and alignment of parts
Maintenance and Sourcing Tips
Confirm the “690” calibre marking to ensure proper spare part compatibility
Prefer NOS or watchmaker-verified donor parts to retain originality and value
Source parts from reputable vintage dealers and trusted online platforms
Use Swiss-certified lubricants and professional watch servicing for optimum lifespan
Importance of Genuine Spare Parts
Ensures precision, durability, and preservation of watch authenticity
Maintains the watch’s collector appeal and mechanical integrity
Supports expert repairs and reliable daily wear
Using authentic spare parts is essential to preserve the Felsa 690’s legacy as a pioneering Swiss automatic movement admired by collectors and restorers.
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