---
description: Genuine Omega 8500 second wheel 7228500A3002702 for Caliber 8500. Swiss original wheel train part for movement repair.
title: Omega 8500 Movement Second Wheel | Omega Movement Parts - Sofly
image: https://www.soflypart.com/wp-content/uploads/2019/06/8500A3002702.jpg
---
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- **Omega 8500 Movement Second Wheel 7228500A3002702**
[](https://www.soflypart.com/wp-content/uploads/2019/06/8500A3002702.jpg)
[](https://www.soflypart.com/wp-content/uploads/2019/06/8500A3002702B.jpg)
# Omega 8500 Movement Second Wheel 7228500A3002702
$80.00
You Saved
| Brand | Choose an option Omega- 
Clear |
| --- | --- |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $80.00 |
| 3 - 4 | 5% | $76.00 |
| 5+ | 7% | $74.40 |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $80.00 |
| 3 - 4 | 5% | $76.00 |
| 5+ | 7% | $74.40 |
Omega 8500 Movement Second Wheel 7228500A3002702 quantity
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## Product Description
The **Omega 8500 Movement Second Wheel (7228500A3002702)** is a genuine Swiss-made component for the **Omega Caliber 8500** Co‑Axial automatic movement. As part of the wheel train, this second wheel transmits power from the barrel system to the escapement, playing a role in maintaining the movement’s stable rate and 60‑hour power reserve. Service guide documents confirm that the second wheel (reference 30027\*\*) is an identified service part used during professional movement overhauls.
## Features & Function
- **Genuine Omega part** – authentic Swiss-made component for Caliber 8500
- **Wheel train component** – transmits power from the barrel to the escapement
- **Precision-engineered** – manufactured to Omega’s factory specifications
- **Service replacement part** – listed in official technical documentation for professional servicing
- **Supports stable chronometric performance** – works with the Co‑Axial escapement and free‑sprung balance system
## Specifications
- **Part Number**: 7228500A3002702 (also listed as 30027\*\* in manuals)
- **Compatible Movement**: Omega Caliber 8500 (Co‑Axial automatic)
- **Movement Diameter**: 29.00 mm (12¾”’)
- **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 8500 movements
- **Wheel train repair** – replacing worn or damaged second wheels
- **Restoration** of De Ville Hour Vision, Seamaster Aqua Terra, Constellation, 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 7228500A3002702), manufactured in Switzerland. It appears in official Omega technical documentation as a service part for the 8500 caliber.
**2. Which movement versions is this second wheel compatible with?**
This second wheel (reference 30027\*\*) is listed for Caliber 8500A and 8501A versions in technical documentation. Please verify your movement version before ordering.
**3. What is the function of the second wheel in the Caliber 8500?**
The second wheel is part of the **wheel train** that transmits power from the two series‑coupled barrels to the escapement. It works with the intermediate train wheel to deliver stable torque to the Co‑Axial escapement system.
## 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**.
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As part of the wheel train, this second wheel transmits power from the barrel system to the escapement, playing a role in maintaining the movement's stable rate and 60\u2011hour power reserve. Service guide documents confirm that the second wheel (reference 30027**) is an identified service part used during professional movement overhauls. Features & Function Genuine Omega part\u00a0\u2013 authentic Swiss-made component for Caliber 8500 Wheel train component\u00a0\u2013 transmits power from the barrel to the escapement Precision-engineered\u00a0\u2013 manufactured to Omega's factory specifications Service replacement part\u00a0\u2013 listed in official technical documentation for professional servicing Supports stable chronometric performance\u00a0\u2013 works with the Co\u2011Axial escapement and free\u2011sprung balance system Specifications Part Number: 7228500A3002702 (also listed as 30027** in manuals) Compatible Movement: Omega Caliber 8500 (Co\u2011Axial automatic) Movement Diameter: 29.00 mm (12\u00be''') Movement Height: 5.5 mm Jewels: 39 Frequency: 25,200 vph (3.5 Hz) Power Reserve: 60 hours (two series\u2011coupled barrels) Origin: Switzerland (Omega factory part) Condition: Brand new Applications Service and overhaul\u00a0of Omega Caliber 8500 movements Wheel train repair\u00a0\u2013 replacing worn or damaged second wheels Restoration\u00a0of De Ville Hour Vision, Seamaster Aqua Terra, Constellation, and other 8500\u2011powered models 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 7228500A3002702), manufactured in Switzerland. It appears in official Omega technical documentation as a service part for the 8500 caliber. 2. Which movement versions is this second wheel compatible with? This second wheel (reference 30027**) is listed for Caliber 8500A and 8501A versions in technical documentation. Please verify your movement version before ordering. 3. What is the function of the second wheel in the Caliber 8500? The second wheel is part of the\u00a0wheel train\u00a0that transmits power from the two series\u2011coupled barrels to the escapement. It works with the intermediate train wheel to deliver stable torque to the Co\u2011Axial escapement system. 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/2019/06/8500A3002702-150x150.jpg","offers":{"@type":"Offer","description":"Product Description The\u00a0Omega 8500 Movement Second Wheel (7228500A3002702)\u00a0is a genuine Swiss-made component for the\u00a0Omega Caliber 8500\u00a0Co\u2011Axial automatic movement. As part of the wheel train, this second wheel transmits power from the barrel system to the escapement, playing a role in maintaining the movement's stable rate and 60\u2011hour power reserve. Service guide documents confirm that the second wheel (reference 30027**) is an identified service part used during professional movement overhauls. Features & Function Genuine Omega part\u00a0\u2013 authentic Swiss-made component for Caliber 8500 Wheel train component\u00a0\u2013 transmits power from the barrel to the escapement Precision-engineered\u00a0\u2013 manufactured to Omega's factory specifications Service replacement part\u00a0\u2013 listed in official technical documentation for professional servicing Supports stable chronometric performance\u00a0\u2013 works with the Co\u2011Axial escapement and free\u2011sprung balance system Specifications Part Number: 7228500A3002702 (also listed as 30027** in manuals) Compatible Movement: Omega Caliber 8500 (Co\u2011Axial automatic) Movement Diameter: 29.00 mm (12\u00be''') Movement Height: 5.5 mm Jewels: 39 Frequency: 25,200 vph (3.5 Hz) Power Reserve: 60 hours (two series\u2011coupled barrels) Origin: Switzerland (Omega factory part) Condition: Brand new Applications Service and overhaul\u00a0of Omega Caliber 8500 movements Wheel train repair\u00a0\u2013 replacing worn or damaged second wheels Restoration\u00a0of De Ville Hour Vision, Seamaster Aqua Terra, Constellation, and other 8500\u2011powered models 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 7228500A3002702), manufactured in Switzerland. It appears in official Omega technical documentation as a service part for the 8500 caliber. 2. Which movement versions is this second wheel compatible with? This second wheel (reference 30027**) is listed for Caliber 8500A and 8501A versions in technical documentation. Please verify your movement version before ordering. 3. What is the function of the second wheel in the Caliber 8500? The second wheel is part of the\u00a0wheel train\u00a0that transmits power from the two series\u2011coupled barrels to the escapement. It works with the intermediate train wheel to deliver stable torque to the Co\u2011Axial escapement system. 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. 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