


Marvin 320 Watch Spare Parts: Essential Guide for Collectors and Watchmakers
The Marvin 320 is a Swiss manual wind movement produced in the 1940s–50s, highly regarded for its compact round design and durable mechanics. This calibre is often found in the niche “Marvin Tyre” novelty watches, as well as classic men’s dress watches. The movement is compact, typically measuring 8¾ lignes (about 19.7 mm) in diameter, utilizes a lever escapement, and features either 15 or 17 jewels. Its design prioritizes reliability and vintage accuracy, making genuine spare parts essential for precise restoration.
Key Technical Specifications
Calibre: Marvin 320
Type: Manual wind, lever escapement
Size: 8¾ ligne (about 19.7 mm diameter)
Jewels: 15 or 17 (varies by model)
Frequency: 18,000 vph
Complications: Time only (central or sub-seconds; some versions support alarm)
Era: Early 1940s–50s Switzerland
Common Spare Parts
Balance Assembly & Staff: Ensures steady beat and reliability
Mainspring & Barrel: Key for consistent power reserve in vintage Swiss movements
Stem & Crown: For manual winding and time setting
Gear Train Wheels: Includes center, third, fourth, and steel escape wheels
Pallet Fork & Escape Wheel: Crucial for Swiss lever escapement accuracy
Jewels & Bearings: Full set supports friction reduction and longevity
Hands: Classic style for Marvin round dress and novelty watches
Case Clamps & Screws: SECURES movement within varied cases (including Tyre watch cases)
Maintenance and Sourcing Tips
Confirm calibre marking 320 before ordering parts
Source NOS Marvin or compatible Swiss parts from reputable vintage suppliers
Restoration should be performed by watchmakers experienced in classic Swiss compact calibres
Importance of Genuine Spare Parts
Preserves mechanical reliability and vintage performance
Maintains the collectible and historical value
Ensures successful restoration for daily use and display
Using authentic Marvin 320 spare parts guarantees performance and preserves the historic integrity of these charming Swiss watches.
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