




BFG – Baumgartner 844/31 Watch Spare Parts: Detailed Overview
The Baumgartner BFG 844/31 is a Swiss-made manual winding watch movement featuring a pin lever escapement and date complication. This calibre is part of the Baumgartner 844 family, which gained popularity for its reliability and classic mechanical design in the 1970s.
Key Technical Specifications
Calibre: BFG 844/31
Movement Type: Mechanical manual wind
Size: Approximately 10.5 lignes (23.6 mm diameter)
Beat Rate: 18,000 vibrations per hour (vph)
Jewels: Typically 2 or 17 depending on variant
Functions: Hours, minutes, sweeping seconds, and date (date ring type)
Escapement: Pin lever
Shock Protection: KIF Trior
Balance: Nickel anular balance with hairspring regulator
Construction: Pillar construction with yoke winding system
Common Spare Parts
Mainspring and Barrel: Original or New Old Stock (NOS) mainsprings for consistent power delivery.
Balance Assembly: Includes balance wheel, staff, regulator, essential for precision and shock resistance.
Escape Wheel and Pallet Fork: Escapement components critical for smooth functioning.
Gear Train Wheels: Including center, third, and fourth wheels for power transmission.
Setting Mechanism: Stems, crowns, yokes, levers, and springs for reliable winding and time setting.
Date Mechanism: Date ring, corrector levers, date driving wheels, and springs for the date complication.
Hands and Dial Components: Replacement hands and dials maintain the movement’s vintage look.
Screws and Bridges: Structural components ensuring movement stability.
Sourcing and Maintenance Tips
Verify the BFG 844/31 calibre marking on your movement before ordering parts for compatibility.
Use NOS or donor movements to source rare or discontinued parts.
Handle date components carefully to prevent damage during servicing.
Apply light, precise lubrication aligned with vintage watch servicing standards.
Trusted specialist watch parts suppliers offer a wide selection of BFG 844/31 spare parts.
Importance of Genuine Spare Parts
Genuine components ensure durability, accuracy, and smooth mechanical operation.
Preserve the historical and collector value of your vintage Baumgartner watch.
Proper restoration using original parts maintains the watch’s heritage and performance.
Maintaining your Baumgartner BFG 844/31 with authentic spare parts guarantees reliable function and honors its legacy in Swiss horology.
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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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