---
description: Sea-Gull ST6 mechanical movement — 11½’‘’, 21,600 A/h, 17 jewels. Reliable workhorse caliber for watchmaking and replacement projects.
title: Sea-Gull ST6 Mechanical Movement - Sofly
image: https://www.soflypart.com/wp-content/uploads/2021/10/DSC08105.jpg
---
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- **Sea-Gull ST6 Mechanical Movement**
[](https://www.soflypart.com/wp-content/uploads/2021/10/DSC08105.jpg)
[](https://www.soflypart.com/wp-content/uploads/2021/10/DSC08107.jpg)
[](https://www.soflypart.com/wp-content/uploads/2021/10/DSC08106.jpg)
# Sea-Gull ST6 Mechanical Movement
$18.00
You Saved
| Brand | Choose an option China Movement- 
Clear |
| --- | --- |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $18.00 |
| 3 - 4 | 5% | $17.10 |
| 5 - 9 | 7% | $16.74 |
| 10+ | 10% | $16.20 |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $18.00 |
| 3 - 4 | 5% | $17.10 |
| 5 - 9 | 7% | $16.74 |
| 10+ | 10% | $16.20 |
Sea-Gull ST6 Mechanical Movement quantity
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## Product Description
**Sea-Gull ST6 Mechanical Movement** — reliable Chinese-made mechanical caliber measuring **11½’‘’ diameter**, operating at **21,600 A/h** with **17 jewels**. A proven workhorse movement known for **durability and affordability**, ideal for watchmaking projects, custom builds, and replacement applications.
## Features & Function
- **17 jewels** — reduced friction for enhanced durability and smooth operation
- **21,600 A/h frequency** — stable and reliable beat rate for accurate timekeeping
- **11½’‘’ diameter** — standard size compatible with various watch cases
- **Proven workhorse caliber** — Sea-Gull’s reliable and well-established movement
- **Cost-effective solution** — affordable mechanical movement for watchmaking projects
## Specifications
| Parameter | Value |
| --- | --- |
| **Brand** | Sea-Gull |
| **Model** | ST6 |
| **Type** | Mechanical |
| **Size** | 11½’‘’ |
| **Frequency** | 21,600 A/h |
| **Jewels** | 17 |
| **Origin** | China |
## Applications
- Watchmaking projects and custom builds
- Movement replacement for watches requiring ST6 caliber
- Professional watch repair and servicing
- Watchmaker and hobbyist use
## FAQ
**Q1: Is this a genuine Sea-Gull movement?**
A: Yes — this is a **genuine Sea-Gull ST6 mechanical movement** from the renowned Chinese manufacturer.
**Q2: What is the size of this movement?**
A: The movement measures **11½’‘’ in diameter**, a standard size compatible with various watch cases.
**Q3: What is the frequency and jewel count?**
A: The ST6 operates at **21,600 A/h** with **17 jewels** for smooth and reliable performance.
## 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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