ETA 2824/2834/2836-407 Sliding Pinion

Product Description

The ETA 2824/2834/2836-407 Sliding Pinion is a genuine Swiss-made component for the ETA 2824-2, 2834-2, and 2836-2 automatic movements. As a critical part of the keyless works, the sliding pinion is the primary torque transmitter between the winding stem and the clutch wheel. It engages the setting train for hand-adjustment and the winding train for mainspring charging. Replacing this part is the best solution to restore manual winding and time-setting functions.

Features & Function

• Genuine ETA part – authentic Swiss-made component for ETA 2824/2834/2836 calibers

• Keyless works component – primary torque transmitter between the winding stem and clutch wheel

• Dual function design – engages the setting train for hand-adjustment and the winding train for mainspring charging

• Direct replacement – drop-in replacement for worn or damaged sliding pinions

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

Specifications

• Part Number: 2824/2834/2836-407 / 407

• Compatible Movements: ETA 2824-2, 2834-2, 2836-2

• Movement Diameter: 25.6 mm (11½”’)

• Movement Height: 4.60 mm – 2824-2

• Jewels: 25

• Frequency: 28,800 vph (4 Hz)

• Power Reserve: ~38 hours

• Origin: Switzerland (ETA factory part)

• Condition: Brand new

Applications

• Service and overhaul of ETA 2824/2834/2836 family movements

• Keyless works repair – replacing worn or damaged sliding pinions

• Crown function restoration – restoring manual winding and time-setting functions

• 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 407), made in Switzerland. It is listed in official supply catalogs as “Sliding Pinion” for ETA 2824/2834/2836 calibers.

2. Which movements is this sliding pinion compatible with?

This sliding pinion is compatible with ETA 2824-2, 2834-2, and 2836-2 movements, a 25.6 mm caliber family widely used in mid-range automatic watches.

3. What is the function of the sliding pinion?

The sliding pinion is part of the keyless works mechanism that acts as the primary torque transmitter between the winding stem and the clutch wheel. When the crown is pushed in, it engages the winding train for manual winding. When pulled out, it engages the setting train for hand-adjustment.

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