Marvin 520CS Watch Spare Parts: Expert Guide for Collectors and Watchmakers
The Marvin 520CS is a distinguished Swiss manual wind movement from the mid-20th century, belonging to the Marvin 520 series. It is recognized for its precise Swiss lever escapement, robust build quality, and classic round design. With a diameter of 10.5 lignes (approximately 23.4 mm) and a jewel count ranging from 15 to 17, the 520CS operates at 18,000 vibrations per hour (vph) and sustains a power reserve of around 48 hours. Its time-only function lends itself well to elegant dress watches prized by collectors.
Key Technical Specifications
Calibre: Marvin 520CS
Type: Manual wind, lever escapement
Diameter: 10.5 lignes (23.4 mm)
Jewels: 15 to 17 jewels
Frequency: 18,000 vph
Power Reserve: Approximately 48 hours
Complications: Time only
Era: Mid-1950s Switzerland
Common Spare Parts
Balance Assembly & Staff: Critical for maintaining smooth, accurate oscillation
Mainspring & Barrel: Provides consistent energy output for long power reserve
Stem & Setting Lever: Essential for winding and precise time setting
Gear Train Wheels: Center, third, fourth, and escape wheels ensuring power transmission
Pallet Fork & Escape Wheel: Crucial escapement components for accuracy
Jewels & Bearings: Reduce friction and wear on moving parts
Hands: Designed for time-only dials, vintage styling
Case Clamps & Screws: Secure the movement firmly in the case
Maintenance and Sourcing Tips
Verify 520CS marking for accurate parts identification
Source New Old Stock (NOS) or original Swiss Marvin parts for best results
Restoration should be handled by watchmakers experienced in manual Swiss calibres of the period
Importance of Genuine Spare Parts
Maintains mechanical accuracy and longevity
Preserves collector value and authentic vintage appearance
Supports professional and reliable restoration
Genuine Marvin 520CS spare parts are essential for preserving the heritage and mechanical excellence of these iconic Swiss vintage timepieces cherished by collectors and restorers 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]
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