Landeron 186 Watch Spare Parts: Essential Guide for Collectors and Watchmakers
The Landeron 186 is a renowned Swiss chronograph movement produced from around 1949 to the 1970s. Recognized for its robustness and versatility, this caliper measures approximately 13.75 lignes (around 31 mm) with a height of 7.42 mm. It features 17 jewels and operates at 18,000 vibrations per hour (vph), with a power reserve of approximately 41 hours. This movement is distinguished by its full calendar, moon phase complication, and cam-switch chronograph mechanism, making authentic spare parts vital for proper restoration and maintenance.
Key Technical Specifications
Calibre: Landeron 186
Type: Manual wind chronograph with full calendar and moon phase
Diameter: 13.75 lignes (~31 mm)
Height: 7.42 mm
Jewels: 17
Frequency: 18,000 vph
Power Reserve: About 41 hours
Functions: Chronograph (central seconds, 30-minute subdial), full calendar (day, date, month), moon phase
Switching System: Cam-actuated
Common Spare Parts
Chronograph Runner & Bridge: Ensures smooth operation of the central seconds hand
Cam Levers & Reset Hammers: For precise start, stop, reset functions of the chrono
Calendar Components: Date jumper, day/date wheels, moon phase star and star driver
Balance Staff: Critical for maintaining accurate oscillation
Mainspring: Preferably NOS or high-quality Swiss replacements
Pallet Fork & Escape Wheel: Ensures smooth escapement function
Pushers & Return Springs: For reliable control of chronograph and calendar functions
Jewels & Bearings: Reduce friction and wear over time
Maintenance and Sourcing Tips
Confirm Landeron 186 markings, as variations may differ in features
Source only NOS or reputed Swiss parts for compatibility and longevity
Rely on expert technicians for complex repairs and calibration
Importance of Genuine Spare Parts
Preserves the full functionality of the chronograph and calendar
Maintains the vintage watch’s originality and value
Ensures dependable, long-term performance and durability
Using authentic Landeron 186 spare parts is essential for preserving this iconic movement’s integrity and performance, treasured by collectors and horologists worldwide.
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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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