ETA 2671-1530 Movement Auxiliary Reversing Wheel

Product Description

The ETA 2671-1530 Movement Auxiliary Reversing Wheel is a genuine Swiss-made component for the ETA 2671 automatic movement family, with part number 2671-1530, Article 27 . As a critical part of the bidirectional automatic winding system, the auxiliary reversing wheel works in conjunction with the main reversing wheel (Article 28) to convert the rotor’s bidirectional motion into a consistent winding direction, ensuring efficient mainspring tension for the movement’s ~38-hour power reserve . This brand new original part is essential for watchmakers restoring proper automatic winding function when the original reverser becomes worn or damaged .

Features & Function

• Genuine ETA part – authentic Swiss-made component for the ETA 2671 and ETA 2650 calibers 

• Bidirectional winding system component – works with the reversing wheel (1488) to convert rotor motion 

• Critical for self-winding efficiency – ensures reliable mainspring tension during automatic winding

• Direct replacement – drop-in replacement for worn or damaged auxiliary reversing wheels 

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

Specifications

• Part Number: 2671-1530 / 1530

• Article Number: 27

• Compatible Movements: ETA 2671, ETA 2650 

• Movement Diameter: 17.2 mm (7¾”’) 

• Movement Height: 4.80 mm 

• Jewels: 25 (for this version) 

• Frequency: 28,800 vph (4 Hz) 

• Power Reserve: ~38 hours 

• Rotor Type: Ball bearing (5 balls) 

• Winding Direction: Bidirectional 

• Origin: Switzerland (ETA factory part) 

• Condition: Brand new

Applications

• Service and overhaul of ETA 2671 and ETA 2650 movements

• Automatic winding system repair – replacing worn or damaged reversing wheels

• Winding efficiency restoration – resolving poor self-winding performance

• 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 2671-1530), made in Switzerland. It is listed in official ETA parts documentation as the “Auxiliary Reversing Wheel” for the ETA 2671 caliber .

2. Which movements is this auxiliary reversing wheel compatible with?

This auxiliary reversing wheel is compatible with ETA 2671 and ETA 2650 calibers . The ETA 2671 is a 17.2 mm automatic movement widely used in ladies’ watches from brands including Tissot, Mido, Longines, and Tudor .

3. What is the function of the auxiliary reversing wheel?

The auxiliary reversing wheel works with the main reversing wheel in the bidirectional automatic winding system to convert the rotor’s back-and-forth motion into a consistent winding direction. This system is a hallmark of the ETA 2671’s efficient self-winding mechanism .

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