ETA 2892-1141 Automatic Device Lower Bridge

Product Description

The ETA 2892-1141 Automatic Device Lower Bridge is a genuine Swiss-made component for the ETA 2892 automatic movement family. As part of the automatic winding module, this lower bridge supports the rotor and the automatic winding train, providing a stable foundation for the self-winding mechanism. This brand new original part is essential for watchmakers restoring proper automatic winding function when the original lower bridge becomes worn or damaged.

Features & Function

• Genuine ETA part – authentic Swiss-made component for ETA 2892 family calibers

• Automatic winding module component – provides stable support for the rotor and automatic winding train

• Works with upper bridge (1142) – forms the complete automatic device bridge assembly

• Direct replacement – drop-in replacement for damaged or worn lower bridges

• Precision-engineered – manufactured to ETA’s original specifications

Specifications

• Part Number: 2892-1141 / 1141

• Article Number: 26

• Compatible Movements: ETA 2892, 2892-2, 2892-A2, 2890, 2891, 2893, 2894, 2895, 2896, 2897

• Movement Diameter: 25.6 mm (11½”’)

• Movement Height: 3.60 mm

• Jewels: 21

• Frequency: 28,800 vph (4 Hz)

• Power Reserve: ~42 hours

• Origin: Switzerland (ETA factory part)

• Condition: Brand new

Applications

• Service and overhaul of ETA 2892 family movements

• Automatic winding system repair – replacing damaged or worn lower bridges

• Rotor assembly restoration – ensuring stable support for the oscillating weight

• Suitable for professional watchmakers and experienced repair technicians

FAQs

1. Is this a genuine ETA part?

Yes, this is a genuine ETA factory part (reference 2892-1141), made in Switzerland. It is listed in authorized supply catalogs for ETA 2892 family calibers.

2. Which movements is this lower bridge compatible with?

This lower bridge is compatible with ETA 2892, 2892-2, 2892-A2, 2890, 2891, 2893, 2894, 2895, 2896, and 2897 calibers. The 2892-A2 is a 25.6 mm automatic movement with a slim 3.6 mm height, extensively used by mid-range and high-end brands.

3. What is the difference between the lower bridge (1141) and upper bridge (1142)?

The lower bridge (1141) and upper bridge (1142) work together to form the complete automatic device bridge assembly. The 1141 is the lower part that provides the foundation for the automatic winding module, while the 1142 sits above it, supporting the rotor.

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