Lorsa HS 652 Watch Spare Parts: Essential Guide for Collectors and Watchmakers
The Lorsa HS 652 is a manual wind Swiss movement popular in vintage wristwatches. It measures approximately 10½ lignes (23.3 mm diameter) with a height of 5.00 mm. This calibre typically has 17 jewels and operates at 18,000 vibrations per hour (vph), offering a power reserve of around 37 hours. It features a sweep seconds complication and is known for its reliable timekeeping and solid construction, making genuine spare parts important for restoration and maintenance.
Key Technical Specifications
Calibre: Lorsa HS 652
Diameter: 10½ lignes (23.3 mm)
Height: 5.00 mm
Jewels: 17
Frequency: 18,000 vph
Power Reserve: Approximately 37 hours
Functions: Hours, minutes, sweep seconds
Movement Type: Manual wind
Common Spare Parts
Balance Assembly & Staff: Critical for oscillation precision and steady timekeeping
Mainspring & Barrel: NOS or original parts needed for consistent power delivery
Stem & Crown: For reliable winding and setting
Gear Train Components: Including center, third, and escape wheels for efficient energy transfer
Jewels & Bearings: Minimize friction, enhance durability
Winding Lever & Setting Components: Ensure smooth operation of winding and time-setting
Hands: Period-correct sweep seconds, hour and minute hands to maintain originality
Maintenance and Sourcing Tips
Confirm HS 652 markings for proper parts identification
Obtain genuine or NOS Swiss parts from reputable suppliers
Consult experienced watchmakers with expertise in vintage manual wind calibres
Importance of Genuine Spare Parts
Preserves precise timekeeping and movement dependability
Maintains vintage authenticity and collector value
Enables durable, high-quality watch servicing and restoration
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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