---
description: Genuine MIYOTA 1M02 coil block (246-112), made in Japan. Core stepper drive for 10½ ligne 3-hand day-date movement, fits 364 battery.
title: MIYOTA/CITIZEN 1M02 Coil Block - Sofly
image: https://www.soflypart.com/wp-content/uploads/2019/05/1M02CO.jpg
---
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- **MIYOTA/CITIZEN 1M02 Coil Block**
[](https://www.soflypart.com/wp-content/uploads/2019/05/1M02CO.jpg)
[](https://www.soflypart.com/wp-content/uploads/2019/05/1M02COB.jpg)
# MIYOTA/CITIZEN 1M02 Coil Block
$3.50
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| Brand | Choose an option MIYOTA- 
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| --- | --- |
### 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 |
MIYOTA/CITIZEN 1M02 Coil Block quantity
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## Product Description
This is a **genuine MIYOTA coil block (Part No. 246-112/246-119)** for the **1M02 movement**, **made in Japan**, designed for the **1M02 quartz caliber**. 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 accurate timekeeping. The 1M02 is a **10½ ligne 3-hand day-date movement** (hour/minute/second, day/date at 3 o’clock) commonly found in various quartz watches. This product is **brand new and original**, intended for repairing movements that fail due to open circuits, short circuits, or corrosion damage to the coil.
## Specifications
- **Part Number**：**246-112** / **246-119** (Coil)
- **Compatible Movement**：**1M02** quartz caliber (10½ ligne)
- **Origin**：**Made in Japan**
- **Quality**：**Genuine original**, brand new
- **Function**：**Converts electrical pulses to magnetic force** for stepper motor
## FAQ
**1. Is this coil block an original MIYOTA genuine part?**
**Yes**. It is an **original MIYOTA factory part** (Part No. **246-112** or **246-119**), **made in Japan**, manufactured by Citizen’s MIYOTA division.
**2. Which movements is this coil block compatible with?**
It fits the **MIYOTA 1M02 quartz caliber** (10½ ligne, 23.30mm, 2.94mm height). The 1M02 is a **3-hand day-date** movement (day/date at 3 o’clock), also compatible with **1N12, 1L02, 1M12, 1L12** series calibers.
**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**. The 1M02 uses a **364 (SR621SW) battery**—circuit failure directly impacts timekeeping. **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 accurate timekeeping. The 1M02 is a\u00a010\u00bd ligne 3-hand day-date movement\u00a0(hour/minute/second, day/date at 3 o'clock) commonly found in various quartz watches. This product is\u00a0brand new and original, intended for repairing movements that fail due to open circuits, short circuits, or corrosion damage to the coil. Specifications Part Number\uff1a246-112\u00a0/\u00a0246-119\u00a0(Coil) Compatible Movement\uff1a1M02\u00a0quartz caliber (10\u00bd ligne) Origin\uff1aMade in Japan Quality\uff1aGenuine original, brand new Function\uff1aConverts electrical pulses to magnetic force\u00a0for stepper motor FAQ 1. Is this coil block an original MIYOTA genuine part? Yes. 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The 1M02 is a\u00a010\u00bd ligne 3-hand day-date movement\u00a0(hour/minute/second, day/date at 3 o'clock) commonly found in various quartz watches. This product is\u00a0brand new and original, intended for repairing movements that fail due to open circuits, short circuits, or corrosion damage to the coil. Specifications Part Number\uff1a246-112\u00a0/\u00a0246-119\u00a0(Coil) Compatible Movement\uff1a1M02\u00a0quartz caliber (10\u00bd ligne) Origin\uff1aMade in Japan Quality\uff1aGenuine original, brand new Function\uff1aConverts electrical pulses to magnetic force\u00a0for stepper motor FAQ 1. Is this coil block an original MIYOTA genuine part? Yes. It is an\u00a0original MIYOTA factory part\u00a0(Part No.\u00a0246-112\u00a0or\u00a0246-119),\u00a0made in Japan, manufactured by Citizen's MIYOTA division. 2. Which movements is this coil block compatible with? It fits the\u00a0MIYOTA 1M02 quartz caliber\u00a0(10\u00bd ligne, 23.30mm, 2.94mm height). 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