Lorsa HS 651 Watch Spare Parts: Essential Guide for Collectors and Watchmakers
The Lorsa HS 651 is a vintage Swiss manual wind watch movement recognized for its compact size and reliable timekeeping. With a size of 10½ lignes (about 23.3 mm) and a height of approximately 5 mm, it features a pin lever escapement and a small seconds complication. The calibre operates at 18,000 vibrations per hour (vph) and has 5 jewels with Parechoc shock protection on the bridge side, making it a practical and durable vintage movement likely produced around the 1950s.
Key Technical Specifications
Calibre: Lorsa HS 651
Size: 10½ lignes (approx. 23.3 mm diameter)
Height: Approximately 5 mm
Jewels: 5
Frequency: 18,000 vph
Escapement: Pin lever
Shock Protection: Parechoc (axial protection on bridge side)
Functions: Hours, minutes, small seconds
Winding & Setting: Manual via crown
Balance: Nickel with position at bottom (120-240°)
Common Spare Parts
Balance Staff & Assembly: Critical for stable oscillation and time accuracy
Mainspring & Barrel: Ensure reliable power delivery
Stem & Crown: For effective winding and hand setting
Escapement Components: Pin lever, pallet fork, escape wheel
Gear Train Wheels: Transmit power efficiently throughout the movement
Shock Protection Parts: Parechoc system components to guard balance staff
Jewels: Reduce friction and wear
Hands: Appropriate size and vintage style
Maintenance and Sourcing Tips
Verify HS 651 marking for part compatibility
Prefer New Old Stock (NOS) or genuine Swiss parts from trusted suppliers
Utilize watchmakers specializing in vintage manual movements for servicing
Importance of Genuine Spare Parts
Ensures accurate timekeeping and movement longevity
Preserves original collector value and historical authenticity
Supports expert professional restoration with durable results
Using original Lorsa HS 651 spare parts is vital for maintaining and restoring this classic, practical vintage calibre widely appreciated by horology enthusiasts and collectors.
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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