---
description: Genuine Omega 8500 crown wheel 7228500A31023 for Caliber 8500A. Swiss original manual winding part for movement repair.
title: Omega 8500 Movement Crown Wheel | Omega Movement Parts - Sofly
image: https://www.soflypart.com/wp-content/uploads/2019/06/8500A31023.jpg
---
[Skip to content](#content)
- [Home](https://www.soflypart.com)
-
- [Products](https://www.soflypart.com/shop/)
-
- [Watch Parts](https://www.soflypart.com/product-category/watch-parts/)
-
- [Genuine Omega Parts](https://www.soflypart.com/product-category/watch-parts/genuine-omega-parts/)
-
- **Omega 8500 Movement Crown Wheel 7228500A31023**
[](https://www.soflypart.com/wp-content/uploads/2019/06/8500A31023.jpg)
[](https://www.soflypart.com/wp-content/uploads/2019/06/8500A31023B.jpg)
# Omega 8500 Movement Crown Wheel 7228500A31023
$105.00
You Saved
| Brand | Choose an option Omega- 
Clear |
| --- | --- |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $105.00 |
| 3 - 4 | 5% | $99.75 |
| 5+ | 7% | $97.65 |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $105.00 |
| 3 - 4 | 5% | $99.75 |
| 5+ | 7% | $97.65 |
Omega 8500 Movement Crown Wheel 7228500A31023 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 **Omega 8500 Movement Crown Wheel (7228500A31023)** is a genuine Swiss-made component for the **Omega Caliber 8500** Co‑Axial automatic movement. As part of the manual winding mechanism, this crown wheel engages with the winding pinion to transmit rotational force from the crown to the mainspring barrel during manual winding . It is listed as a service part for Caliber 8500A in the official Omega spare parts list .
## Features & Function
- **Genuine Omega part** – authentic Swiss-made component listed for Caliber 8500A
- **Manual winding mechanism component** – engages with winding pinion to transmit crown torque
- **Critical for manual winding function** – enables the user to wind the mainspring via the crown
- **Service replacement part** – recognized in official Omega technical documentation
- **Precision-engineered** – manufactured to Omega’s factory specifications
## Specifications
- **Part Number**: 7228500A31023
- **Compatible Movement**: Omega Caliber 8500A
- **Movement Diameter**: 29.00 mm
- **Movement Height**: 5.5 mm
- **Jewels**: 39
- **Frequency**: 25,200 vph (3.5 Hz)
- **Power Reserve**: 60 hours (two series-coupled barrels)
- **Origin**: Switzerland (Omega factory part)
- **Condition**: Brand new
## Applications
- **Service and overhaul** of Omega Caliber 8500A movements
- **Manual winding repair** – replacing worn or damaged crown wheels
- **Restoration** of De Ville Hour Vision, Seamaster Aqua Terra, and other 8500‑powered models
- Suitable for **professional watchmakers** and **authorized service centers**
## FAQs
**1. Is this a genuine Omega part?**
Yes, this is a **genuine Omega factory part** (reference 7228500A31023), manufactured in Switzerland. It is listed in the official Omega 8500 spare parts list for Caliber 8500A .
**2. Which movement versions is this crown wheel compatible with?**
This crown wheel is specifically listed for **Omega Caliber 8500A** in the technical documentation . For other versions, different references may be required. Please verify your movement version before ordering.
**3. What is the function of the crown wheel in the manual winding mechanism?**
The crown wheel is part of the **manual winding mechanism** that engages with the winding pinion . When the crown is turned, the crown wheel transmits rotational force through the winding pinion and reduction wheel to the mainspring barrel, enabling manual winding.
## 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/miyota-citizen-5r32-movement-circuit-block/)Quick View [Add to Cart](https://www.soflypart.com/product/miyota-citizen-5r32-movement-circuit-block/)Watch Circuit & Coil [MIYOTA/CITIZEN 5R32 Circuit Block Electronic Module
](https://www.soflypart.com/product/miyota-citizen-5r32-movement-circuit-block/) $4.00
You Saved
- [](https://www.soflypart.com/product/eta-2000-1-movement-date-jumper/)Quick View [Add to Cart](https://www.soflypart.com/product/eta-2000-1-movement-date-jumper/)Watch Movement Parts [ETA 2000-2576 Date Jumper Swiss Made Genuine Part
](https://www.soflypart.com/product/eta-2000-1-movement-date-jumper/) $5.00
You Saved
- [](https://www.soflypart.com/product/generic-audemars-piguet-sapphire-crystal-17mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-audemars-piguet-sapphire-crystal-17mm/)Watch Parts [Generic Audemars Piguet Sapphire Crystal 17mm
](https://www.soflypart.com/product/generic-audemars-piguet-sapphire-crystal-17mm/) $70.00
You Saved
- [](https://www.soflypart.com/product/generic-rado-diastar-115-0624-3-sapphire-crystal-35mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-rado-diastar-115-0624-3-sapphire-crystal-35mm/)Watch Parts [Generic Rado Diastar 115.0624.3 Sapphire Crystal 35mm
](https://www.soflypart.com/product/generic-rado-diastar-115-0624-3-sapphire-crystal-35mm/) $70.00
You Saved
- [](https://www.soflypart.com/product/generic-patek-philippe-gondolo-gemma-4991r-4982g-4980-4981r-sapphire-crystal/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-patek-philippe-gondolo-gemma-4991r-4982g-4980-4981r-sapphire-crystal/)Watch Parts [Generic Patek Philippe Gondolo Gemma 4991R/4982G/4980/4981R Sapphire Crystal
](https://www.soflypart.com/product/generic-patek-philippe-gondolo-gemma-4991r-4982g-4980-4981r-sapphire-crystal/) $180.00
You Saved
- [](https://www.soflypart.com/product/generic-breitling-premier-a45340211-sapphire-crystal-36-2mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-breitling-premier-a45340211-sapphire-crystal-36-2mm/)Watch Parts [Generic Breitling PREMIER A45340211 Sapphire Crystal 36.2mm
](https://www.soflypart.com/product/generic-breitling-premier-a45340211-sapphire-crystal-36-2mm/) $120.00
You Saved
- [](https://www.soflypart.com/product/generic-cartier-caliber-1847-mainspring/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-cartier-caliber-1847-mainspring/)Watch Mainsprings [Generic Cartier Caliber 1847 Mainspring
](https://www.soflypart.com/product/generic-cartier-caliber-1847-mainspring/) $15.00
You Saved
- [](https://www.soflypart.com/product/sellita-sw1000-1530-auxiliary-reversing-wheel/)Quick View [Add to Cart](https://www.soflypart.com/product/sellita-sw1000-1530-auxiliary-reversing-wheel/)Watch Parts [Sellita SW1000-1530 Auxiliary Reversing Wheel
](https://www.soflypart.com/product/sellita-sw1000-1530-auxiliary-reversing-wheel/) $15.00
You Saved
- [](https://www.soflypart.com/product/eta-2000-movement-winding-stem/)Quick View [Add to Cart](https://www.soflypart.com/product/eta-2000-movement-winding-stem/)Watch Parts [ETA 2000-401 Movement Winding Stem
](https://www.soflypart.com/product/eta-2000-movement-winding-stem/) $3.00
You Saved
- [](https://www.soflypart.com/product/generic-breitling-chronomat-colt-a17388-gold-crown-7-0mm/)Quick View [Add to Cart](https://www.soflypart.com/product/generic-breitling-chronomat-colt-a17388-gold-crown-7-0mm/)Watch Parts [Generic Breitling Chronomat Colt A17388 Gold Crown 7.0mm
](https://www.soflypart.com/product/generic-breitling-chronomat-colt-a17388-gold-crown-7-0mm/) $40.00
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/2019/06/8500A31023.jpg","url":"https://www.soflypart.com/wp-content/uploads/2019/06/8500A31023.jpg","width":"580","height":"580","caption":"Omega 8500 Movement Crown Wheel","inLanguage":"en-US"},{"@type":"BreadcrumbList","@id":"https://www.soflypart.com/product/omega-8500-movement-crown-wheel-7228500a31023/#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/omega-8500-movement-crown-wheel-7228500a31023/","name":"Omega 8500 Movement Crown Wheel 7228500A31023"}}]},{"@type":"WebPage","@id":"https://www.soflypart.com/product/omega-8500-movement-crown-wheel-7228500a31023/#webpage","url":"https://www.soflypart.com/product/omega-8500-movement-crown-wheel-7228500a31023/","name":"Omega 8500 Movement Crown Wheel | Omega Movement Parts - Sofly","datePublished":"2019-06-27T10:51:00+08:00","dateModified":"2026-07-28T15:54:49+08:00","isPartOf":{"@id":"https://www.soflypart.com/#website"},"primaryImageOfPage":{"@id":"https://www.soflypart.com/wp-content/uploads/2019/06/8500A31023.jpg"},"inLanguage":"en-US","breadcrumb":{"@id":"https://www.soflypart.com/product/omega-8500-movement-crown-wheel-7228500a31023/#breadcrumb"}},{"@type":"ProductGroup","name":"Omega 8500 Movement Crown Wheel | Omega Movement Parts - Sofly","description":"Genuine Omega 8500 crown wheel 7228500A31023 for Caliber 8500A. Swiss original manual winding part for movement repair.","sku":"210180","category":"Watch Parts","mainEntityOfPage":{"@id":"https://www.soflypart.com/product/omega-8500-movement-crown-wheel-7228500a31023/#webpage"},"image":[{"@type":"ImageObject","url":"https://www.soflypart.com/wp-content/uploads/2019/06/8500A31023.jpg","height":"580","width":"580"},{"@type":"ImageObject","url":"https://www.soflypart.com/wp-content/uploads/2019/06/8500A31023B.jpg","height":"580","width":"580"}],"url":"https://www.soflypart.com/product/omega-8500-movement-crown-wheel-7228500a31023/","productGroupID":"210180","hasVariant":[{"@type":"Product","sku":"210180","name":"Omega 8500 Movement Crown Wheel 7228500A31023 - Omega","description":"Product Description The\u00a0Omega 8500 Movement Crown Wheel (7228500A31023)\u00a0is a genuine Swiss-made component for the\u00a0Omega Caliber 8500\u00a0Co\u2011Axial automatic movement. As part of the manual winding mechanism, this crown wheel engages with the winding pinion to transmit rotational force from the crown to the mainspring barrel during manual winding . It is listed as a service part for Caliber 8500A in the official Omega spare parts list\u00a0. Features & Function Genuine Omega part\u00a0\u2013 authentic Swiss-made component listed for Caliber 8500A\u00a0 Manual winding mechanism component\u00a0\u2013 engages with winding pinion to transmit crown torque Critical for manual winding function\u00a0\u2013 enables the user to wind the mainspring via the crown Service replacement part\u00a0\u2013 recognized in official Omega technical documentation\u00a0 Precision-engineered\u00a0\u2013 manufactured to Omega's factory specifications Specifications Part Number: 7228500A31023 Compatible Movement: Omega Caliber 8500A\u00a0 Movement Diameter: 29.00 mm\u00a0 Movement Height: 5.5 mm\u00a0 Jewels: 39\u00a0 Frequency: 25,200 vph (3.5 Hz)\u00a0 Power Reserve: 60 hours (two series-coupled barrels)\u00a0 Origin: Switzerland (Omega factory part) Condition: Brand new Applications Service and overhaul\u00a0of Omega Caliber 8500A movements Manual winding repair\u00a0\u2013 replacing worn or damaged crown wheels Restoration\u00a0of De Ville Hour Vision, Seamaster Aqua Terra, and other 8500\u2011powered models\u00a0 Suitable for\u00a0professional watchmakers\u00a0and\u00a0authorized service centers FAQs 1. Is this a genuine Omega part? Yes, this is a\u00a0genuine Omega factory part\u00a0(reference 7228500A31023), manufactured in Switzerland. It is listed in the official Omega 8500 spare parts list for Caliber 8500A\u00a0. 2. Which movement versions is this crown wheel compatible with? This crown wheel is specifically listed for\u00a0Omega Caliber 8500A\u00a0in the technical documentation\u00a0. For other versions, different references may be required. Please verify your movement version before ordering. 3. What is the function of the crown wheel in the manual winding mechanism? The crown wheel is part of the\u00a0manual winding mechanism\u00a0that engages with the winding pinion\u00a0. When the crown is turned, the crown wheel transmits rotational force through the winding pinion and reduction wheel to the mainspring barrel, enabling manual winding. 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/2019/06/8500A31023-150x150.jpg","offers":{"@type":"Offer","description":"Product Description The\u00a0Omega 8500 Movement Crown Wheel (7228500A31023)\u00a0is a genuine Swiss-made component for the\u00a0Omega Caliber 8500\u00a0Co\u2011Axial automatic movement. As part of the manual winding mechanism, this crown wheel engages with the winding pinion to transmit rotational force from the crown to the mainspring barrel during manual winding . It is listed as a service part for Caliber 8500A in the official Omega spare parts list\u00a0. Features & Function Genuine Omega part\u00a0\u2013 authentic Swiss-made component listed for Caliber 8500A\u00a0 Manual winding mechanism component\u00a0\u2013 engages with winding pinion to transmit crown torque Critical for manual winding function\u00a0\u2013 enables the user to wind the mainspring via the crown Service replacement part\u00a0\u2013 recognized in official Omega technical documentation\u00a0 Precision-engineered\u00a0\u2013 manufactured to Omega's factory specifications Specifications Part Number: 7228500A31023 Compatible Movement: Omega Caliber 8500A\u00a0 Movement Diameter: 29.00 mm\u00a0 Movement Height: 5.5 mm\u00a0 Jewels: 39\u00a0 Frequency: 25,200 vph (3.5 Hz)\u00a0 Power Reserve: 60 hours (two series-coupled barrels)\u00a0 Origin: Switzerland (Omega factory part) Condition: Brand new Applications Service and overhaul\u00a0of Omega Caliber 8500A movements Manual winding repair\u00a0\u2013 replacing worn or damaged crown wheels Restoration\u00a0of De Ville Hour Vision, Seamaster Aqua Terra, and other 8500\u2011powered models\u00a0 Suitable for\u00a0professional watchmakers\u00a0and\u00a0authorized service centers FAQs 1. Is this a genuine Omega part? Yes, this is a\u00a0genuine Omega factory part\u00a0(reference 7228500A31023), manufactured in Switzerland. It is listed in the official Omega 8500 spare parts list for Caliber 8500A\u00a0. 2. Which movement versions is this crown wheel compatible with? This crown wheel is specifically listed for\u00a0Omega Caliber 8500A\u00a0in the technical documentation\u00a0. For other versions, different references may be required. Please verify your movement version before ordering. 3. What is the function of the crown wheel in the manual winding mechanism? The crown wheel is part of the\u00a0manual winding mechanism\u00a0that engages with the winding pinion\u00a0. When the crown is turned, the crown wheel transmits rotational force through the winding pinion and reduction wheel to the mainspring barrel, enabling manual winding. 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":"105","priceCurrency":"USD","availability":"http://schema.org/InStock","itemCondition":"NewCondition","priceValidUntil":"2027-12-31","url":"https://www.soflypart.com/product/omega-8500-movement-crown-wheel-7228500a31023/?attribute_pa_brand=brand-omega"}}],"@id":"https://www.soflypart.com/product/omega-8500-movement-crown-wheel-7228500a31023/#richSnippet"}]}
```