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The ETA 2892-425 Click is a genuine Swiss-made component for the ETA 2892 automatic movement family. The click (also known as the click spring) is a critical locking component in the automatic winding system, working in conjunction with the ratchet wheel to securely lock the mainspring energy during non-winding phases and prevent reverse rotation. This brand new original part is essential for watchmakers restoring proper winding function when the original click becomes worn or damaged.
Genuine ETA part – authentic Swiss-made component for the ETA 2892 movement
Automatic winding locking component – works with the ratchet wheel to lock mainspring energy
Prevents reverse rotation – ensures stable power delivery during non-winding phases
Single-spring design – the ETA 2892 uses a single click spring hidden beneath the movement bridge
Direct replacement – drop-in replacement for worn or damaged clicks
Part Number: 2892-425 / 425
Article Number: 16-7
Compatible Movements: ETA 2892, 2892-2, 2892-A2, 2890, and related calibers
Function: Click / click spring – locks the ratchet wheel in the winding system
Movement Diameter: 25.6 mm (11½”’)
Movement Height: 3.60 mm
Jewels: 21 (standard ETA 2892-A2)
Frequency: 28,800 vph (4 Hz)
Power Reserve: ~42 hours
Origin: Switzerland (ETA factory part)
Condition: Brand new
Service and overhaul of ETA 2892 family movements
Automatic winding system repair – replacing worn or damaged clicks
Winding efficiency restoration – resolving poor self-winding performance
Suitable for professional watchmakers and experienced repair technicians
1. Is this a genuine ETA part?
Yes, this is a genuine ETA factory part (reference 425), made in Switzerland. It is listed in authorized supply catalogs for ETA 2892 and 2890 calibers, with ETA reference 434 as an alternative.
2. Which movements is this click compatible with?
This click is compatible with ETA 2892, 2892-2, 2892-A2, 2890, and related 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 function of the click in the winding system?
The click works with the ratchet wheel to lock the mainspring energy during non-winding phases, preventing reverse rotation. The ETA 2892 uses a single click spring design hidden beneath the movement bridge. A worn click can cause reduced winding efficiency or prevent the mainspring from holding tension.
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