---
description: Genuine MIYOTA 90S5/9015 hour wheel (075-A51), made in Japan. For 9000-series movement hour drive, transmits power at 12:1 reduction to the hour hand.
title: MIYOTA/CITIZEN 90S5/9015 Hour Wheel - Sofly
image: https://www.soflypart.com/wp-content/uploads/2019/05/9015H.jpg
---
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- **MIYOTA/CITIZEN 90S5/9015 Hour Wheel**
[](https://www.soflypart.com/wp-content/uploads/2019/05/9015H.jpg)
# MIYOTA/CITIZEN 90S5/9015 Hour Wheel
$2.50
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| Brand | Choose an option MIYOTA- 
Clear |
| --- | --- |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $2.50 |
| 3 - 4 | 5% | $2.38 |
| 5 - 9 | 7% | $2.33 |
| 10 - 14 | 10% | $2.25 |
| 15+ | 15% | $2.13 |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $2.50 |
| 3 - 4 | 5% | $2.38 |
| 5 - 9 | 7% | $2.33 |
| 10 - 14 | 10% | $2.25 |
| 15+ | 15% | $2.13 |
MIYOTA/CITIZEN 90S5/9015 Hour Wheel quantity
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## Product Description
This is a **genuine MIYOTA hour wheel** for the **90S5/9015 movement**, **made in Japan**, designed for **90S5/9015 premium automatic calibers**. By engaging with the **minute wheel**, it transmits power to the **hour hand** at a **12:1 reduction ratio** for **12-hour time display** as a key component of the movement gear train. This product is **brand new and original**, not a generic replacement part.
## Specifications
- **Brand**：MIYOTA (by CITIZEN)
- **Compatible Movement**：**90S5 / 9015** premium automatic calibers (9000-series ultra-thin)
- **Part Name**：**Hour Wheel**
- **Part Number**：**075-A51**
- **Origin**：**Made in Japan**
- **Quality**：**Genuine original**, brand new
- **Function**：**Drives the hour hand** (with **12:1 reduction ratio** from the minute wheel)
- **Movement Size**：**11½ ligne** (25.94mm)
- **Movement Height**：**3.90mm**
- **Beat Rate**：**28,800 bph** (4Hz)
- **Jewels**：**24**
- **Hand Size Reference**：Hour hand mounting hole **1.50–1.52mm**
## FAQ
**1. Is this hour wheel an original CITIZEN/MIYOTA genuine part?**
Yes. It is an **original MIYOTA factory part** with part number **075-A51**, **made in Japan**.
**2. What happens if the hour wheel is damaged?**
A damaged hour wheel can cause the **hour hand to stop, run incorrectly, or jam**, affecting time readability. As it drives the hour hand at a **12:1 reduction ratio** via the minute wheel, tooth precision directly impacts accuracy. **Timely replacement** is recommended upon detecting any abnormality.
**3. Does this part come with installation tools or instructions?**
**No**. This is a single component. Installation involves gear train disassembly and requires professional tools. Note that a **copper washer** is typically located beneath the hour wheel—ensure proper reassembly. Work should be performed by a **qualified watchmaker**.
## 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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By engaging with the\u00a0minute wheel, it transmits power to the\u00a0hour hand\u00a0at a\u00a012:1 reduction ratio\u00a0for\u00a012-hour time display\u00a0as a key component of the movement gear train. This product is\u00a0brand new and original, not a generic replacement part. Specifications Brand\uff1aMIYOTA (by CITIZEN) Compatible Movement\uff1a90S5 / 9015\u00a0premium automatic calibers (9000-series ultra-thin) Part Name\uff1aHour Wheel Part Number\uff1a075-A51 Origin\uff1aMade in Japan Quality\uff1aGenuine original, brand new Function\uff1aDrives the hour hand\u00a0(with\u00a012:1 reduction ratio\u00a0from the minute wheel) Movement Size\uff1a11\u00bd ligne\u00a0(25.94mm) Movement Height\uff1a3.90mm Beat Rate\uff1a28,800 bph\u00a0(4Hz) Jewels\uff1a24 Hand Size Reference\uff1aHour hand mounting hole\u00a01.50\u20131.52mm FAQ 1. Is this hour wheel an original CITIZEN/MIYOTA genuine part? Yes. 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This product is\u00a0brand new and original, not a generic replacement part. Specifications Brand\uff1aMIYOTA (by CITIZEN) Compatible Movement\uff1a90S5 / 9015\u00a0premium automatic calibers (9000-series ultra-thin) Part Name\uff1aHour Wheel Part Number\uff1a075-A51 Origin\uff1aMade in Japan Quality\uff1aGenuine original, brand new Function\uff1aDrives the hour hand\u00a0(with\u00a012:1 reduction ratio\u00a0from the minute wheel) Movement Size\uff1a11\u00bd ligne\u00a0(25.94mm) Movement Height\uff1a3.90mm Beat Rate\uff1a28,800 bph\u00a0(4Hz) Jewels\uff1a24 Hand Size Reference\uff1aHour hand mounting hole\u00a01.50\u20131.52mm FAQ 1. Is this hour wheel an original CITIZEN/MIYOTA genuine part? Yes. It is an\u00a0original MIYOTA factory part\u00a0with part number\u00a0075-A51,\u00a0made in Japan. 2. What happens if the hour wheel is damaged? A damaged hour wheel can cause the\u00a0hour hand to stop, run incorrectly, or jam, affecting time readability. 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