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BFG – Baumgartner 920-31/7 Watch Spare Parts: Comprehensive Overview
The Baumgartner BFG 920-31/7 is a Swiss manual winding mechanical watch movement, part of the renowned Baumgartner family, well-known for durability and compact design. This calibre, measuring 13.5 lignes (about 30.7 mm diameter), features sweep seconds and calendar functions with a 21,600 vibrations per hour beat rate, making it reliable and precise.
Key Specifications
Calibre: BFG 920-31/7
Movement Type: Mechanical manual wind
Size: 13.5 lignes (approx. 30.7 mm diameter)
Beat Rate: 21,600 vibrations per hour (vph)
Jewels: Typically 1 synthetic jewel
Functions: Sweep seconds, calendar/date complication
Escapement: Pin lever
Balance: Nickel anular balance
Power Reserve: Around 44 hours
Common Spare Parts
Mainspring and Barrel: Original and New Old Stock (NOS) mainsprings essential for reliable power delivery.
Balance Assembly: Balance wheel, staff, hairspring, and regulator ensuring accurate timekeeping.
Escape Wheel and Pallet Fork: Core escapement pieces requiring precision fitment.
Gear Train Wheels: Including center wheel, third, and fourth wheels for smooth power transmission.
Setting and Winding Components: Stem, crown, winding pinion, yoke, setting levers, and springs.
Date Mechanism: Date wheels, locking levers, springs, and date jumper parts enabling calendar function.
Hands and Dial Parts: Vintage-compatible replacement hands preserving original aesthetics.
Screws, Bridges, and Plates: Supporting elements that maintain movement integrity.
Maintenance and Sourcing Tips
Confirm BFG 920-31/7 calibre marking before ordering parts to ensure correct compatibility.
Use NOS or donor parts from reliable suppliers for durability and authenticity.
Handle delicate date mechanism parts carefully during servicing to avoid damage.
Apply appropriate lubrication as per vintage watch servicing protocols.
Specialist parts dealers provide extensive Baumgartner spare parts inventory.
Importance of Genuine Spare Parts
Genuine parts ensure durability, precise mechanical operation, and value preservation.
Preserve the collectible and historical significance of your watch.
Support professional restoration and extended service life.
Using authentic spare parts for your Baumgartner BFG 920-31/7 maintains its timeless quality and upholds Swiss watchmaking heritage.
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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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