Marvin 520C Watch Spare Parts: Essential Guide for Vintage Watch Collectors and Watchmakers
The Marvin 520C is a notable Swiss manual wind movement from the mid-20th century, closely related to the Marvin 520 calibre. Renowned for its reliability and solid construction, the 520C features a diameter of approximately 10.5 lignes (23.4 mm) and includes 15 to 17 jewels. This vintage movement operates at 18,000 vibrations per hour (vph), offering a 48-hour power reserve and typically powers time-only wristwatches. The lever escapement design combined with quality Swiss craftsmanship makes it a valued movement among collectors and restorers.
Key Technical Specifications
Calibre: Marvin 520C
Type: Manual winding, lever escapement
Diameter: 10.5 lignes (23.4 mm)
Jewels: 15 to 17
Frequency: 18,000 vph
Power Reserve: Up to 48 hours
Complications: Time-only function
Era: Mid-1950s Swiss watchmaking
Common Spare Parts
Balance Assembly & Staff: Critical for consistent beat and time accuracy
Mainspring & Barrel: Ensures reliable power delivery and winding efficiency
Stem & Setting Lever: Enables effective manual winding and time setting
Gear Train Wheels: Includes center, third, fourth, and escape wheels for power transmission
Pallet Fork & Escape Wheel: Integral to lever escapement reliability
Jewels & Bearings: Reduce friction, extend movement longevity
Hands: Designed for vintage time-only dials, maintaining period aesthetics
Case Clamps & Screws: Secure movement firmly within watch cases
Maintenance and Sourcing Tips
Always verify the 520C calibre marking for precise parts compatibility
Source New Old Stock (NOS) or original Swiss Marvin parts through reputable suppliers
Restoration should be handled by watchmakers experienced with 1950s Swiss manual movements
Importance of Genuine Spare Parts
Maintains precision and prolongs movement life
Preserves historical and collector value
Supports quality restoration and dependable performance
Genuine Marvin 520C spare parts are essential for preserving the functionality and heritage of these classic Swiss manual wind watches, cherished by collectors worldwide.
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