ETA 2391 balance wheel with bridge part 721 and 121

ETA 2391 Balance Wheel with Bridge Part 721 and 121

This pre-owned balance wheel is a highly sought-after component for ETA manual-winding movements, specifically caliber 2391. The bridge part numbers 721 and 121 are commonly used in this caliber, making it an excellent addition to any watch enthusiast’s collection.

Key Features

• Manual-winding movement: Suitable for ETA caliber 2391 watches
• Bridge part numbers 721 and 121 for precise timing and accuracy
• Pre-owned component, ideal for restoration or upgrade projects

Specifications

• Caliber: ETA 2391
• Movement type: Manual-winding
• Bridge part numbers: 721 and 121

Additional Information

This balance wheel is also used in other ETA calibers, including the 2390. Its high-quality craftsmanship and precise timing make it an excellent choice for watch enthusiasts looking to restore or upgrade their timepieces.

Please note that this component is a pre-owned part and may show signs of wear or minor cosmetic damage. However, its performance and accuracy remain exceptional.