Marvin 640 Watch Spare Parts: Expert Guide for Collectors and Watchmakers
The Marvin 640 is a vintage Swiss manual wind movement popular in the 1930s and 1940s, primarily found in elegant Art Deco and tank-style wristwatches. This calibre is distinguished by its compact rectangular shape, measuring approximately 7.75 x 11 lignes, and is designed for durability and reliable timekeeping. The movement features a lever escapement and commonly uses 15 jewels, known for its smooth operation and vintage Swiss craftsmanship.
Key Technical Specifications
Calibre: Marvin 640
Type: Manual wind, lever escapement
Size: 7.75 x 11 lignes
Jewels: Typically 15 jewels
Lift Angle: 52°
Era: 1930s–1940s Switzerland
Applications: Art Deco and tank watch designs
Common Spare Parts
Balance Assembly & Staff: Critical for precise and stable oscillation
Mainspring & Barrel: Powers the movement with reliable energy delivery
Stem & Setting Lever: Vital for manual winding and time setting
Gear Train Wheels: Center, third, fourth, and escape wheels ensure smooth power transfer
Pallet Fork & Escape Wheel: Integral components of the lever escapement
Jewels & Bearings: Reduce wear and friction, enhancing durability
Hands: Designed to suit vintage rectangular dials and styles
Case Clamps & Screws: Securely fix the movement inside the case
Maintenance and Sourcing Tips
Verify the 640 calibre marking for correct spare parts compatibility
Seek New Old Stock (NOS) or original Marvin parts from specialist vintage watch suppliers
Restoration is best performed by watchmakers skilled in early 20th-century Swiss movements
Importance of Genuine Spare Parts
Ensures accurate and reliable timekeeping
Preserves historical authenticity and collector value
Supports long-term restoration quality and mechanical longevity
Authentic Marvin 640 spare parts are essential for preserving the function and heritage of these distinguished vintage Swiss watches, highly prized 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]
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