---
description: Genuine TMI/Seiko VJ12 date wheel for quartz movement. Calendar component restores accurate date display. Japanese quality.
title: TMI/Hattori SEIKO VJ12 Movement Date Wheel - Sofly
image: https://www.soflypart.com/wp-content/uploads/2019/05/VJ12D.jpg
---
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- **TMI/Hattori SEIKO VJ12 Movement Date Wheel**
[](https://www.soflypart.com/wp-content/uploads/2019/05/VJ12D.jpg)
# TMI/Hattori SEIKO VJ12 Movement Date Wheel
$1.00
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| Brand | Choose an option TMI- 
Clear |
| --- | --- |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $1.00 |
| 3 - 4 | 5% | $0.95 |
| 5 - 9 | 7% | $0.93 |
| 10 - 14 | 10% | $0.90 |
| 15+ | 15% | $0.85 |
### Discount
| Quantity | Discount (%) | Price |
| --- | --- | --- |
| 1 - 2 | — | $1.00 |
| 3 - 4 | 5% | $0.95 |
| 5 - 9 | 7% | $0.93 |
| 10 - 14 | 10% | $0.90 |
| 15+ | 15% | $0.85 |
TMI/Hattori SEIKO VJ12 Movement Date Wheel quantity
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## Product Description
The **TMI/Seiko VJ12 Movement Date Wheel** is a genuine Japanese-made component for the popular VJ12 quartz movement . This date wheel drives the date display in the dial window, ensuring accurate and reliable calendar function. The VJ12 is a compact 8¾ ligne (approx. 19.8mm) movement with a slim 2.71mm height, widely used in three-hand watches with date function at 3 or 6 o’clock.
## Features & Function
- **Genuine TMI/Seiko part** – authentic Japanese-made component for the VJ12 movement
- **Calendar mechanism component** – drives the date display in the dial window
- **Available in two variants** – D3 (date at 3 o’clock) and D6 (date at 6 o’clock)
- **Essential for service** – commonly replaced when date function becomes irregular
## Specifications
- **Compatible Movement**: TMI/Seiko VJ12, VJ12B, VJ12D6
- **Movement Size**: 8¾ ligne (approx. 19.8mm)
- **Movement Height**: 2.71mm
- **Date Position**: D3 (3 o’clock) / D6 (6 o’clock)
- **Hand Sizes**: Hour: 1.20mm / Minute: 0.70mm / Seconds: 0.17mm
- **Battery**: 364 / SR621SW
- **Origin**: Japan
## Applications
- **Service and repair** – replacing worn or damaged date wheels in VJ12 movements
- **Calendar function restoration** – resolving issues with date display
- Suitable for **professional watchmakers** and **experienced repair technicians**
## FAQs
**1. Is this a genuine TMI/Seiko part?**
Yes, this is a **genuine Seiko (TMI) factory part** made in Japan. The VJ12 is a quartz movement manufactured by Seiko Instruments Inc. (SII) and distributed by Time Module Inc. (TMI) .
**2. Which movements is this date wheel compatible with?**
This date wheel is compatible with the **TMI/Seiko VJ12** family of movements, including VJ12B and VJ12D6 variants . The VJ12 is an 8¾ ligne quartz caliber with 3 hands and date function .
**3. What are the signs that the date wheel needs replacement?**
Common signs include **date not advancing at midnight, incomplete date change, misaligned date display**, or **visible wear/damage** during inspection. A qualified watchmaker can diagnose these issues.
## 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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The VJ12 is a compact 8\u00be ligne (approx. 19.8mm) movement with a slim 2.71mm height, widely used in three-hand watches with date function at 3 or 6 o'clock. Features & Function Genuine TMI/Seiko part\u00a0\u2013 authentic Japanese-made component for the VJ12 movement Calendar mechanism component\u00a0\u2013 drives the date display in the dial window Available in two variants\u00a0\u2013 D3 (date at 3 o'clock) and D6 (date at 6 o'clock) Essential for service\u00a0\u2013 commonly replaced when date function becomes irregular Specifications Compatible Movement: TMI/Seiko VJ12, VJ12B, VJ12D6 Movement Size: 8\u00be ligne (approx. 19.8mm) Movement Height: 2.71mm Date Position: D3 (3 o'clock) / D6 (6 o'clock) Hand Sizes: Hour: 1.20mm / Minute: 0.70mm / Seconds: 0.17mm Battery: 364 / SR621SW Origin: Japan Applications Service and repair\u00a0\u2013 replacing worn or damaged date wheels in VJ12 movements Calendar function restoration\u00a0\u2013 resolving issues with date display Suitable for\u00a0professional watchmakers\u00a0and\u00a0experienced repair technicians FAQs 1. Is this a genuine TMI/Seiko part? 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Features & Function Genuine TMI/Seiko part\u00a0\u2013 authentic Japanese-made component for the VJ12 movement Calendar mechanism component\u00a0\u2013 drives the date display in the dial window Available in two variants\u00a0\u2013 D3 (date at 3 o'clock) and D6 (date at 6 o'clock) Essential for service\u00a0\u2013 commonly replaced when date function becomes irregular Specifications Compatible Movement: TMI/Seiko VJ12, VJ12B, VJ12D6 Movement Size: 8\u00be ligne (approx. 19.8mm) Movement Height: 2.71mm Date Position: D3 (3 o'clock) / D6 (6 o'clock) Hand Sizes: Hour: 1.20mm / Minute: 0.70mm / Seconds: 0.17mm Battery: 364 / SR621SW Origin: Japan Applications Service and repair\u00a0\u2013 replacing worn or damaged date wheels in VJ12 movements Calendar function restoration\u00a0\u2013 resolving issues with date display Suitable for\u00a0professional watchmakers\u00a0and\u00a0experienced repair technicians FAQs 1. Is this a genuine TMI/Seiko part? Yes, this is a\u00a0genuine Seiko (TMI) factory part\u00a0made in Japan. The VJ12 is a quartz movement manufactured by Seiko Instruments Inc. (SII) and distributed by Time Module Inc. (TMI) . 2. Which movements is this date wheel compatible with? This date wheel is compatible with the\u00a0TMI/Seiko VJ12\u00a0family of movements, including VJ12B and VJ12D6 variants . The VJ12 is an 8\u00be ligne quartz caliber with 3 hands and date function . 3. What are the signs that the date wheel needs replacement? Common signs include\u00a0date not advancing at midnight, incomplete date change, misaligned date display, or\u00a0visible wear/damage\u00a0during inspection. A qualified watchmaker can diagnose these issues. 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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