The FHF-Font 77 is a notable Swiss watch movement produced by Fabrique d’Horlogerie de Fontainemelon (FHF), recognized for its reliability and widespread use in vintage wristwatches. This article provides an overview of the FHF-Font 77’s technical profile, commonly sourced spare parts, and practical tips for watchmakers.
FHF-Font 77 Overview
The FHF 77 is a manual-wind movement, typically found in mid-century Swiss watches.
It is known for its robust construction, straightforward engineering, and ease of servicing, making it popular among watch repairers.
Technical Specifications
Typical dimensions: 5¾ x 8½ Ligne (approx. 12.70 x 19.15mm).
Jewel count: 17 jewels for reduced friction and increased longevity.
Frequency: 18,000 A/h, providing reliable timekeeping.
Power reserve: Approx. 44 hours.
Essential Spare Parts List
Balance complete INCA: Crucial for the watch’s regulation and precision.
Mainspring (771 series): Available in multiple strengths/dimensions for different case styles.
Setting lever and wheel (443/450): Key for adjusting the hands and winding.
Barrel and arbor (182/195): Transfers power from the mainspring to the gear train.
Ratchet and crown wheels (415/420): Facilitate winding and maintain the effectiveness of the keyless works.
Balance staff and escape wheel: Often needed for restoration due to wear or shock damage.
Stem and crown: Necessary for replacing worn or missing components in the setting system.
Regulator and bearing plates: Maintains optimal movement operation.
Watchmaker Notes
Many spare parts are interchangeable with similar FHF calibres, but always verify dimensions and compatibility before replacement.
Sourcing original parts ensures authenticity and best performance; NOS (New Old Stock) remains available from specialist suppliers.
Common issues include mainspring breakage, worn winding/setting systems, and damaged balance staff.
By focusing on genuine FHF-Font 77 spare parts, watch restorers can maintain both technical accuracy and vintage value. For additional reference or parts sourcing, consult specialized vendors who offer detailed inventory and technical advice.
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Watch Parts Enquiry
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Stem, Crown, Hands & Spares might be available for this movement.
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