ETA 7750-8270 Minute Counter Jumper

Product Description

The ETA 7750-8270 Minute Counter Jumper is a genuine Swiss-made component for the ETA/Valjoux 7750 automatic chronograph movement. This spring-loaded lever provides precise indexing and retention for the 30-minute chronograph counter subdial (typically at 12 o’clock). When worn, the minute counter hand may drift or feel loose – this new original part restores proper chronograph function and crisp detent feel.

Features & Function

• Genuine ETA part – authentic Swiss-made component for 7750 movement

• Precise indexing – ensures accurate 30-minute counter hand positioning

• Spring-loaded lever – provides retention force during chronograph operation

• Restores crisp detent feel – eliminates hand drift or looseness

• Direct replacement – essential for chronograph function repair

Specifications

• Part Number: 8270

• Compatible Movement: ETA/Valjoux 7750 (automatic chronograph)

• Part Type: Minute counter jumper (chronograph mechanism)

• Origin: Switzerland (genuine ETA factory part)

• Condition: Brand new

Applications

• Service and overhaul of ETA/Valjoux 7750 chronograph movements

• Chronograph repair – replacing worn or damaged minute counter jumpers

• Restoration – restoring proper chronograph hand feel and accuracy

• Suitable for professional watchmakers and repair technicians

FAQs

1. Is this a genuine ETA part?
Yes, this is a genuine ETA factory part (reference 8270), manufactured in Switzerland. It is not an aftermarket or generic component.

2. Which movement is this part compatible with?
This part is specifically designed for the ETA/Valjoux 7750 automatic chronograph movement. Please verify your movement caliber before ordering.

3. What are the symptoms of a worn minute counter jumper?
When worn, the 30-minute counter hand may drift, fail to hold position, or feel loose during chronograph operation. Replacing this part restores proper indexing and detent feel.

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