FHF-Font 66.4 N Watch Spare Parts: Comprehensive Guide for Watchmakers and Collectors
The FHF-Font 66.4 N is a Swiss manual wind mechanical watch movement produced by Fabrique d’Horlogerie de Fontainemelon (FHF). This calibre, used from the late 1940s to the 1950s, is valued for its reliability and classic design. It measures 11.5 lignes (approximately 25.60 mm) in diameter with a height of about 3.20 mm. The movement operates at 18,000 vibrations per hour (vph), features 17 or 21 jewels, and includes sweep seconds and a date complication. The date is set by changing the time between 21:00 and 24:00 hours. The movement uses a Swiss pallet lever escapement and a nickel screw balance for stable timekeeping.
Key Technical Specifications
Calibre: FHF-Font 66.4 N
Movement Type: Manual winding
Diameter: 11.5 lignes (25.60 mm)
Height: 3.20 mm
Jewels: 17 or 21 synthetic rubies
Frequency: 18,000 vibrations per hour
Power Reserve: Approximately 40 hours
Features: Sweep seconds, date complication
Escapement: Swiss pallet lever
Balance: Nickel screw balance
Common Spare Parts
Balance assembly & staff: Regulates oscillations for accurate timekeeping
Mainspring & barrel: Provide consistent power and reserve
Escape wheel & pallet fork: Control gear train movement precisely
Winding stem & crown: Facilitate manual winding and hand setting
Set lever bridge & keyless works: Enable smooth hand setting and clutch operation
Date mechanism components: Date wheel, jumper, and driving wheels
Cannon pinion & minute wheel: Drive the hands for accurate display
Hands & dial assemblies: Maintain vintage aesthetics and readability
Case screws & fasteners: Secure movement inside the watch case
Maintenance and Sourcing Tips
Confirm the “FHF 66.4 N” calibre marking for correct spare part compatibility
Source genuine or New Old Stock (NOS) parts for reliability and fit
Use exploded diagrams and technical manuals for precise repairs
Employ watchmakers experienced in vintage Swiss movements for professional servicing
Importance of Genuine Spare Parts
Maintain movement accuracy, durability, and smooth operation
Preserve historical authenticity and collector value
Support professional-quality restoration and long-term reliability
Genuine FHF-Font 66.4 N spare parts are essential for upholding the precision, reliability, and heritage of this classic Swiss manual wind movement, highly prized by collectors and horologists 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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