BFG- Baumgartner 920/31- (CLD) Watch Movement spare parts

BFG – Baumgartner 920/31 Watch Spare Parts: Comprehensive Overview

The Baumgartner BFG 920/31 is a Swiss-made manual winding pin lever mechanical watch movement known for its compact design and reliable performance. This calibre is part of the 920 family featuring a small size and sturdy construction, widely used in vintage watches.
Key Specifications

Calibre: BFG 920/31

Size: Approximately 8.75 lignes (around 19.7 mm diameter)

Beat Rate: 21,600 vibrations per hour (vph)

Jewels: Typically 1 to several synthetic jewels depending on variant

Escapement: Pin lever

Balance: Nickel anular balance without shock protection

Winding: Yoke winding system

Functions: Timekeeping with sweep or no seconds hand depending on variant

Common Spare Parts

Mainspring and Barrel: Original or New Old Stock (NOS) mainsprings for steady and reliable power.

Balance Assembly: Balance wheel, staff, hairspring, and regulator for precision timing.

Escape Wheel and Pallet Fork: Essential escapement components requiring precision.

Gear Train Wheels: Center, third, and fourth wheels transferring power smoothly.

Setting and Winding Components: Stem, crown, winding pinion, yoke, setting lever, and springs.

Hands and Dial Components: Authentic vintage replacements or compatible parts.

Screws, Bridges, and Plates: Structural parts ensuring movement stability and assembly.

Maintenance and Sourcing Tips

Confirm BFG 920/31 calibre marking before ordering parts for compatibility.

Use NOS or trusted donor parts to ensure quality and correct fitment.

Handle pin lever escapement and balance components with care during servicing.

Apply appropriate lubrication following vintage watch care standards.

Specialist vintage watch parts suppliers and dealers stock a wide range of Baumgartner BFG 920 family parts.

Importance of Genuine Spare Parts

Genuine parts guarantee accuracy, durability, and smooth operation of the timepiece.

Preserve the historical value and collector appeal of your vintage Baumgartner watch.

Proper restoration with authentic spares supports long-term watch functionality.

Maintaining your Baumgartner BFG 920/31 with genuine spare parts ensures dependable performance and respects its Swiss horological heritage.

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Stem, Crown, Hands & Spares might be available for this movement.

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