---
description: Genuine Ronda 6004 coil block, Swiss made. Core drive for 6004.B/D movements, converts pulses to magnetic force for stepper motor, fits 373/395 battery.
title: Ronda 6004 Coil Block - Sofly
image: https://www.soflypart.com/wp-content/uploads/2019/05/6004CO.jpg
---
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- **Ronda 6004 Coil Block**
[](https://www.soflypart.com/wp-content/uploads/2019/05/6004CO.jpg)
[](https://www.soflypart.com/wp-content/uploads/2019/05/6004COB.jpg)
# Ronda 6004 Coil Block
$3.50
You Saved
| Brand | Choose an option Ronda- 
Clear |
| --- | --- |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 4 | — | $3.50 |
| 5 - 9 | 5% | $3.33 |
| 10+ | 10% | $3.15 |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 4 | — | $3.50 |
| 5 - 9 | 5% | $3.33 |
| 10+ | 10% | $3.15 |
Ronda 6004 Coil Block quantity
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## Product Description
This is a **genuine Ronda 6004 coil block**, a **Swiss-made** component for the **Ronda 6004.B and 6004.D quartz movements**. It serves as the **core drive component** of the stepper motor, converting electrical pulses from the circuit board into magnetic force to drive the gear train for precise timekeeping. This product is **brand new and original**, intended for servicing and repair of 6004 movements.
## Specifications
- **Brand**：Ronda (Swiss)
- **Compatible Movements**：**6004.B / 6004.D** quartz calibers
- **Part Name**：**Coil Block** (Spulenblock)
- **Origin**：**Made in Switzerland**
- **Quality**：**Genuine original**, brand new
- **Function**：**Converts electrical pulses to magnetic force** to drive stepper motor
- **Coil Resistance**：**1.61–1.81 kΩ**
## FAQ
**1. Is this coil block an original Ronda genuine part?**
**Yes**. It is an **original Ronda factory part** from Switzerland, designed for 6004.B and 6004.D movements.
**2. Which movements is this coil block compatible with?**
It fits **Ronda 6004.B and 6004.D quartz movements**. The 6004 series measures **11½ ligne** (Ø26.0mm) and features **big date display** and **small seconds at 6 o’clock**.
**3. What are the symptoms of coil block failure?**
The coil block is the **core drive component** of the stepper motor. Common symptoms include: **movement not running after battery replacement**, **noticeable time gain/loss**, or **intermittent stoppage**. **Timely replacement** is recommended.
## Why Choose SOFLY Watch Parts?
**Fast Worldwide Shipping** – Orders are dispatched within 3 business days.
**Competitive Pricing** – Great value across watch movements, replacement parts and watchmaking tools.
**Extensive Selection** – More than 3,000 watch movements, parts and accessories available.
**Trusted Worldwide** – Trusted by watchmakers, repair professionals and watch enthusiasts worldwide.
**Personalized Sourcing** – Can’t find the part you need? Contact **info@soflypart.com** or WhatsApp **+86 18620212114.**
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It serves as the\u00a0core drive component\u00a0of the stepper motor, converting electrical pulses from the circuit board into magnetic force to drive the gear train for precise timekeeping. This product is\u00a0brand new and original, intended for servicing and repair of 6004 movements. Specifications Brand\uff1aRonda (Swiss) Compatible Movements\uff1a6004.B / 6004.D\u00a0quartz calibers Part Name\uff1aCoil Block\u00a0(Spulenblock) Origin\uff1aMade in Switzerland Quality\uff1aGenuine original, brand new Function\uff1aConverts electrical pulses to magnetic force\u00a0to drive stepper motor Coil Resistance\uff1a1.61\u20131.81 k\u03a9 FAQ 1. Is this coil block an original Ronda genuine part? Yes. It is an\u00a0original Ronda factory part\u00a0from Switzerland, designed for 6004.B and 6004.D movements.\u00a0 2. Which movements is this coil block compatible with? It fits\u00a0Ronda 6004.B and 6004.D quartz movements. 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Contact\u00a0info@soflypart.com\u00a0or WhatsApp\u00a0+86 18620212114.","image":"https://www.soflypart.com/wp-content/uploads/2019/05/6004CO-150x150.jpg","offers":{"@type":"Offer","description":"Product Description This is a\u00a0genuine Ronda 6004 coil block, a\u00a0Swiss-made\u00a0component for the\u00a0Ronda 6004.B and 6004.D quartz movements. It serves as the\u00a0core drive component\u00a0of the stepper motor, converting electrical pulses from the circuit board into magnetic force to drive the gear train for precise timekeeping. This product is\u00a0brand new and original, intended for servicing and repair of 6004 movements. Specifications Brand\uff1aRonda (Swiss) Compatible Movements\uff1a6004.B / 6004.D\u00a0quartz calibers Part Name\uff1aCoil Block\u00a0(Spulenblock) Origin\uff1aMade in Switzerland Quality\uff1aGenuine original, brand new Function\uff1aConverts electrical pulses to magnetic force\u00a0to drive stepper motor Coil Resistance\uff1a1.61\u20131.81 k\u03a9 FAQ 1. 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