---
description: Genuine ETA 2671-1497 ball bearing for ETA 2671. Swiss-made automatic rotor bearing for ladies' automatic movement repair and restoration.
title: ETA 2671-1497 Movement Ball Bearing - Sofly
image: https://www.soflypart.com/wp-content/uploads/2019/06/2671bb.jpg
---
[Skip to content](#content)
- [Home](https://www.soflypart.com)
-
- [Products](https://www.soflypart.com/shop/)
-
- [Watch Movement Parts](https://www.soflypart.com/product-category/watch-parts/movement-parts/)
-
- [Watch Parts](https://www.soflypart.com/product-category/watch-parts/)
-
- **ETA 2671-1497 Movement Ball Bearing**
[](https://www.soflypart.com/wp-content/uploads/2019/06/2671bb.jpg)
[](https://www.soflypart.com/wp-content/uploads/2019/06/2671bbb.jpg)
# ETA 2671-1497 Movement Ball Bearing
$10.50
You Saved
| Brand | Choose an option ETA- 
Clear |
| --- | --- |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $10.50 |
| 3 - 4 | 5% | $9.98 |
| 5 - 9 | 7% | $9.77 |
| 10 - 14 | 10% | $9.45 |
| 15+ | 15% | $8.93 |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $10.50 |
| 3 - 4 | 5% | $9.98 |
| 5 - 9 | 7% | $9.77 |
| 10 - 14 | 10% | $9.45 |
| 15+ | 15% | $8.93 |
ETA 2671-1497 Movement Ball Bearing quantity
Add to cart
x
[Checkout](https://www.soflypart.com/checkout/)
- Covers 99% of Repair Needs
- Wholesale Discounts
- Fast Global Shipping
- 24/7 Customer Support
## Product Description
The **ETA 2671-1497 Movement Ball Bearing** is a genuine Swiss-made component for the ETA 2671 automatic movement family, with part number 2671-1497, Article 31-2. The ball bearing supports the oscillating weight (rotor), enabling smooth, low-friction rotation for efficient bidirectional self-winding. As the ETA 2671 is a compact 17.2mm caliber widely used in ladies’ watches, the ball bearing is a critical component for maintaining automatic winding performance and the movement’s \~38-hour power reserve.
## Features & Function
- **Genuine ETA part** – authentic Swiss-made component for the ETA 2671 movement
- **Ball bearing system** – supports the rotor with 5-ball bearing for smooth rotation and reduced friction
- **Bidirectional winding support** – enables efficient self-winding regardless of rotor direction
- **Essential for power reserve** – direct impact on winding efficiency and the \~38-hour power reserve
- **Precision-engineered** – manufactured to ETA’s original specifications
## Specifications
- **Part Number**: 2671-1497 / 1497
- **Article Number**: 31-2
- **Compatible Movement**: ETA 2671
- **Movement Diameter**: 17.2 mm (7¾”’)
- **Movement Height**: 4.80 mm
- **Jewels**: 17/21/25 (varies by 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 movements
- **Automatic winding repair** – replacing worn, noisy, or seized rotor bearings
- **Rotor restoration** – ensuring smooth and efficient 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 2671-1497), made in Switzerland. The ETA 2671 is a 17.2 mm automatic movement widely used in ladies’ watches from brands including Tissot, Mido, Longines, and Tudor.
**2. What is the function of the ball bearing in the ETA 2671 movement?**
The ball bearing supports the automatic rotor, allowing it to rotate with minimal friction. The ETA 2671 features a **5-ball bearing rotor** with bidirectional winding, efficiently winding the mainspring regardless of rotor direction.
**3. What are the signs that the ball bearing needs replacement?**
Common signs include **grinding or rattling noise from the rotor, reduced winding efficiency, rough rotor rotation**, or **visible wear/damage** during inspection. Experienced watchmakers note that worn ball bearings are a common cause of automatic winding issues in the ETA 2671.
## Why Choose SOFLY Watch Parts?
- Fast worldwide shipping within 3 business days.
- Competitive pricing on Seiko/Hattori calibers.
- 3,000+ watch movements and parts in stock.
- Trusted by watchmakers worldwide.
- Personalized sourcing support via **info@soflypart.com** or WhatsApp **+86 18620212114**.
##### Our Popular Items
[](https://www.soflypart.com/product/generic-cartier-tank-wsta0042-4322-sapphire-crystal-18-9mm/)
### [Generic Cartier Tank WSTA0042/4322 Sapphire Crystal 18.9mm](https://www.soflypart.com/product/generic-cartier-tank-wsta0042-4322-sapphire-crystal-18-9mm/)
[](https://www.soflypart.com/product/generic-rolex-caliber-1220-1225-mainspring/)
### [Generic Rolex Caliber 1220/1225 Mainspring](https://www.soflypart.com/product/generic-rolex-caliber-1220-1225-mainspring/)
[](https://www.soflypart.com/product/generic-rolex-4030-mainspring/)
### [Generic Rolex 4030 Mainspring](https://www.soflypart.com/product/generic-rolex-4030-mainspring/)
[](https://www.soflypart.com/product/generic-rolex-2030-2035-mainspring/)
### [Generic Rolex 2030/2035 Mainspring](https://www.soflypart.com/product/generic-rolex-2030-2035-mainspring/)
[](https://www.soflypart.com/product/cartier-caliber-191-mainspring/)
### [Cartier Caliber 191 Mainspring](https://www.soflypart.com/product/cartier-caliber-191-mainspring/)
[](https://www.soflypart.com/product/eta-e03-001-4000-circuit-block-electronic-module/)
### [ETA E03.001-4000 Circuit Block Electronic Module](https://www.soflypart.com/product/eta-e03-001-4000-circuit-block-electronic-module/)
[](https://www.soflypart.com/product/generic-zenith-el-primero-chronomaster-02-0310-400-sapphire-crystal-29-85mm/)
### [Generic Zenith El Primero Chronomaster 02.0310.400 Sapphire Crystal 29.85mm](https://www.soflypart.com/product/generic-zenith-el-primero-chronomaster-02-0310-400-sapphire-crystal-29-85mm/)
[](https://www.soflypart.com/product/generic-breguet-classique-5920-5907-sapphire-crystal-30-5mm/)
### [Generic Breguet Classique 5920/5907 Sapphire Crystal 30.5mm](https://www.soflypart.com/product/generic-breguet-classique-5920-5907-sapphire-crystal-30-5mm/)
[](https://www.soflypart.com/product/hattori-vd55-vd57-circuit-block-electronic-module/)
### [Hattori VD55/VD57 Circuit Block Electronic Module](https://www.soflypart.com/product/hattori-vd55-vd57-circuit-block-electronic-module/)
[](https://www.soflypart.com/product/eta-caliber-2000-1471-stop-pinion/)
### [ETA Caliber 2000-1471 Stop Pinion](https://www.soflypart.com/product/eta-caliber-2000-1471-stop-pinion/)
- [](https://www.soflypart.com/product/omega-3303-movement-escape-wheel/)Quick View [Add to Cart](https://www.soflypart.com/product/omega-3303-movement-escape-wheel/)Watch Parts [Omega 3303 Movement Escape Wheel
](https://www.soflypart.com/product/omega-3303-movement-escape-wheel/) $205.00
You Saved
- [](https://www.soflypart.com/product/tmi-seiko-nh36-movement-third-wheel/)Quick View [Add to Cart](https://www.soflypart.com/product/tmi-seiko-nh36-movement-third-wheel/)Watch Movement Parts [SEIKO (SII) NH35/NH36/NH37/NH38/NH39 Third Wheel #0231070
](https://www.soflypart.com/product/tmi-seiko-nh36-movement-third-wheel/) $2.00
You Saved
- [](https://www.soflypart.com/product/generic-rolex-3035-5020-balance-staff/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-rolex-3035-5020-balance-staff/)Watch Parts [Generic Rolex 3035-5020 Balance Staff
](https://www.soflypart.com/product/generic-rolex-3035-5020-balance-staff/) $22.00
You Saved
- [](https://www.soflypart.com/product/generic-blancpain-villeret-ultra-slim-6223-1127-sapphire-crystal-29-9mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-blancpain-villeret-ultra-slim-6223-1127-sapphire-crystal-29-9mm/)Watch Parts [Generic Blancpain Villeret Ultra-slim 6223-1127 Sapphire Crystal 29.9mm
](https://www.soflypart.com/product/generic-blancpain-villeret-ultra-slim-6223-1127-sapphire-crystal-29-9mm/) $70.00
You Saved
- [](https://www.soflypart.com/product/miyota-citizen-8200-movement-third-wheel/)Quick View [Add to Cart](https://www.soflypart.com/product/miyota-citizen-8200-movement-third-wheel/)Watch Movement Parts [MIYOTA/CITIZEN 8200 Third Wheel
](https://www.soflypart.com/product/miyota-citizen-8200-movement-third-wheel/) $1.00
You Saved
- [](https://www.soflypart.com/product/seiko-nh05-06-15-16-movement-winding-stem/)Quick View [Add to Cart](https://www.soflypart.com/product/seiko-nh05-06-15-16-movement-winding-stem/)Watch Parts [SEIKO (SII) NH05/06/15/16 Winding Stem
](https://www.soflypart.com/product/seiko-nh05-06-15-16-movement-winding-stem/) $1.00
You Saved
- [](https://www.soflypart.com/product/miyota-citizen-js26-movement-hour-wheel/)Quick View [Add to Cart](https://www.soflypart.com/product/miyota-citizen-js26-movement-hour-wheel/)Watch Movement Parts [MIYOTA/CITIZEN JS06/JS16/JS26 Hour Wheel
](https://www.soflypart.com/product/miyota-citizen-js26-movement-hour-wheel/) $1.50
You Saved
- [](https://www.soflypart.com/product/generic-audemars-piguet-royal-oak-67601st-sapphire-crystal-26-3mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-audemars-piguet-royal-oak-67601st-sapphire-crystal-26-3mm/)Watch Parts [Generic Audemars Piguet Royal Oak 67601ST Sapphire Crystal 26.3mm
](https://www.soflypart.com/product/generic-audemars-piguet-royal-oak-67601st-sapphire-crystal-26-3mm/) $85.00
You Saved
- [](https://www.soflypart.com/product/generic-chopard-happy-spirit-217191-sapphire-crystal-31-9mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-chopard-happy-spirit-217191-sapphire-crystal-31-9mm/)Watch Parts [Generic Chopard Happy Spirit 217193 Sapphire Crystal 32mm
](https://www.soflypart.com/product/generic-chopard-happy-spirit-217191-sapphire-crystal-31-9mm/) $60.00
You Saved
- [](https://www.soflypart.com/product/rolex-calibre-2235-0915-balance-shock-absorber/)Quick View [Add to Cart](https://www.soflypart.com/product/rolex-calibre-2235-0915-balance-shock-absorber/)Watch Parts [Rolex Calibre 2230/2235-0915 Balance Shock Absorber
](https://www.soflypart.com/product/rolex-calibre-2235-0915-balance-shock-absorber/) $85.00
You Saved
```json
{"@context":"https://schema.org","@graph":[{"@type":["Store","Organization"],"@id":"https://www.soflypart.com/#organization","name":"Sofly","url":"https://www.soflypart.com","logo":{"@type":"ImageObject","@id":"https://www.soflypart.com/#logo","url":"https://www.soflypart.com/wp-content/uploads/2019/12/Sofly-logo.png","contentUrl":"https://www.soflypart.com/wp-content/uploads/2019/12/Sofly-logo.png","caption":"Soflypart","inLanguage":"en-US","width":"180","height":"62"},"openingHours":["Mo,Tu,We,Th,Fr,Sa,Su 09:00-17:00"],"image":{"@id":"https://www.soflypart.com/#logo"}},{"@type":"WebSite","@id":"https://www.soflypart.com/#website","url":"https://www.soflypart.com","name":"Soflypart","publisher":{"@id":"https://www.soflypart.com/#organization"},"inLanguage":"en-US"},{"@type":"ImageObject","@id":"https://www.soflypart.com/wp-content/uploads/2019/06/2671bb.jpg","url":"https://www.soflypart.com/wp-content/uploads/2019/06/2671bb.jpg","width":"580","height":"580","caption":"ETA 2671-1497 Movement Ball Bearing","inLanguage":"en-US"},{"@type":"BreadcrumbList","@id":"https://www.soflypart.com/product/eta-2671-movement-ball-bearing/#breadcrumb","itemListElement":[{"@type":"ListItem","position":"1","item":{"@id":"https://www.soflypart.com","name":"Home"}},{"@type":"ListItem","position":"2","item":{"@id":"https://www.soflypart.com/product/eta-2671-movement-ball-bearing/","name":"ETA 2671-1497 Movement Ball Bearing"}}]},{"@type":"WebPage","@id":"https://www.soflypart.com/product/eta-2671-movement-ball-bearing/#webpage","url":"https://www.soflypart.com/product/eta-2671-movement-ball-bearing/","name":"ETA 2671-1497 Movement Ball Bearing - Sofly","datePublished":"2019-06-23T08:54:09+08:00","dateModified":"2026-08-04T15:20:45+08:00","isPartOf":{"@id":"https://www.soflypart.com/#website"},"primaryImageOfPage":{"@id":"https://www.soflypart.com/wp-content/uploads/2019/06/2671bb.jpg"},"inLanguage":"en-US","breadcrumb":{"@id":"https://www.soflypart.com/product/eta-2671-movement-ball-bearing/#breadcrumb"}},{"@type":"ProductGroup","name":"ETA 2671-1497 Movement Ball Bearing - Sofly","description":"Genuine ETA 2671-1497 ball bearing for ETA 2671. Swiss-made automatic rotor bearing for ladies' automatic movement repair and restoration.","sku":"210048","category":"Watch Parts > Watch Movement Parts","mainEntityOfPage":{"@id":"https://www.soflypart.com/product/eta-2671-movement-ball-bearing/#webpage"},"image":[{"@type":"ImageObject","url":"https://www.soflypart.com/wp-content/uploads/2019/06/2671bb.jpg","height":"580","width":"580"},{"@type":"ImageObject","url":"https://www.soflypart.com/wp-content/uploads/2019/06/2671bbb.jpg","height":"580","width":"580"}],"url":"https://www.soflypart.com/product/eta-2671-movement-ball-bearing/","productGroupID":"210048","hasVariant":[{"@type":"Product","sku":"210048","name":"ETA 2671-1497 Movement Ball Bearing - ETA","description":"Product Description The\u00a0ETA 2671-1497 Movement Ball Bearing\u00a0is a genuine Swiss-made component for the ETA 2671 automatic movement family, with part number 2671-1497, Article 31-2. The ball bearing supports the oscillating weight (rotor), enabling smooth, low-friction rotation for efficient bidirectional self-winding. As the ETA 2671 is a compact 17.2mm caliber widely used in ladies' watches, the ball bearing is a critical component for maintaining automatic winding performance and the movement's ~38-hour power reserve. Features & Function Genuine ETA part\u00a0\u2013 authentic Swiss-made component for the ETA 2671 movement Ball bearing system\u00a0\u2013 supports the rotor with 5-ball bearing for smooth rotation and reduced friction Bidirectional winding support\u00a0\u2013 enables efficient self-winding regardless of rotor direction Essential for power reserve\u00a0\u2013 direct impact on winding efficiency and the ~38-hour power reserve Precision-engineered\u00a0\u2013 manufactured to ETA's original specifications Specifications Part Number: 2671-1497 / 1497 Article Number: 31-2 Compatible Movement: ETA 2671 Movement Diameter: 17.2 mm (7\u00be''') Movement Height: 4.80 mm Jewels: 17/21/25 (varies by 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\u00a0of ETA 2671 movements Automatic winding repair\u00a0\u2013 replacing worn, noisy, or seized rotor bearings Rotor restoration\u00a0\u2013 ensuring smooth and efficient self-winding performance Suitable for\u00a0professional watchmakers\u00a0and\u00a0experienced repair technicians FAQs 1. Is this a genuine ETA part? Yes, this is a\u00a0genuine ETA factory part\u00a0(reference 2671-1497), made in Switzerland. The ETA 2671 is a 17.2 mm automatic movement widely used in ladies' watches from brands including Tissot, Mido, Longines, and Tudor. 2. What is the function of the ball bearing in the ETA 2671 movement? The ball bearing supports the automatic rotor, allowing it to rotate with minimal friction. The ETA 2671 features a\u00a05-ball bearing rotor\u00a0with bidirectional winding, efficiently winding the mainspring regardless of rotor direction. 3. What are the signs that the ball bearing needs replacement? Common signs include\u00a0grinding or rattling noise from the rotor, reduced winding efficiency, rough rotor rotation, or\u00a0visible wear/damage\u00a0during inspection. Experienced watchmakers note that worn ball bearings are a common cause of automatic winding issues in the ETA 2671. Why Choose SOFLY Watch Parts? Fast worldwide shipping within 3 business days. Competitive pricing on Seiko/Hattori calibers. 3,000+ watch movements and parts in stock. Trusted by watchmakers worldwide. Personalized sourcing support via\u00a0info@soflypart.com\u00a0or WhatsApp\u00a0+86 18620212114.","image":"https://www.soflypart.com/wp-content/uploads/2019/06/2671bb-150x150.jpg","offers":{"@type":"Offer","description":"Product Description The\u00a0ETA 2671-1497 Movement Ball Bearing\u00a0is a genuine Swiss-made component for the ETA 2671 automatic movement family, with part number 2671-1497, Article 31-2. The ball bearing supports the oscillating weight (rotor), enabling smooth, low-friction rotation for efficient bidirectional self-winding. As the ETA 2671 is a compact 17.2mm caliber widely used in ladies' watches, the ball bearing is a critical component for maintaining automatic winding performance and the movement's ~38-hour power reserve. Features & Function Genuine ETA part\u00a0\u2013 authentic Swiss-made component for the ETA 2671 movement Ball bearing system\u00a0\u2013 supports the rotor with 5-ball bearing for smooth rotation and reduced friction Bidirectional winding support\u00a0\u2013 enables efficient self-winding regardless of rotor direction Essential for power reserve\u00a0\u2013 direct impact on winding efficiency and the ~38-hour power reserve Precision-engineered\u00a0\u2013 manufactured to ETA's original specifications Specifications Part Number: 2671-1497 / 1497 Article Number: 31-2 Compatible Movement: ETA 2671 Movement Diameter: 17.2 mm (7\u00be''') Movement Height: 4.80 mm Jewels: 17/21/25 (varies by 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\u00a0of ETA 2671 movements Automatic winding repair\u00a0\u2013 replacing worn, noisy, or seized rotor bearings Rotor restoration\u00a0\u2013 ensuring smooth and efficient self-winding performance Suitable for\u00a0professional watchmakers\u00a0and\u00a0experienced repair technicians FAQs 1. Is this a genuine ETA part? Yes, this is a\u00a0genuine ETA factory part\u00a0(reference 2671-1497), made in Switzerland. The ETA 2671 is a 17.2 mm automatic movement widely used in ladies' watches from brands including Tissot, Mido, Longines, and Tudor. 2. What is the function of the ball bearing in the ETA 2671 movement? The ball bearing supports the automatic rotor, allowing it to rotate with minimal friction. The ETA 2671 features a\u00a05-ball bearing rotor\u00a0with bidirectional winding, efficiently winding the mainspring regardless of rotor direction. 3. What are the signs that the ball bearing needs replacement? Common signs include\u00a0grinding or rattling noise from the rotor, reduced winding efficiency, rough rotor rotation, or\u00a0visible wear/damage\u00a0during inspection. Experienced watchmakers note that worn ball bearings are a common cause of automatic winding issues in the ETA 2671. Why Choose SOFLY Watch Parts? Fast worldwide shipping within 3 business days. Competitive pricing on Seiko/Hattori calibers. 3,000+ watch movements and parts in stock. Trusted by watchmakers worldwide. Personalized sourcing support via\u00a0info@soflypart.com\u00a0or WhatsApp\u00a0+86 18620212114.","price":"10.5","priceCurrency":"USD","availability":"http://schema.org/InStock","itemCondition":"NewCondition","priceValidUntil":"2027-12-31","url":"https://www.soflypart.com/product/eta-2671-movement-ball-bearing/?attribute_pa_brand=eta"}}],"@id":"https://www.soflypart.com/product/eta-2671-movement-ball-bearing/#richSnippet"}]}
```