---
description: "Genuine Seiko 7S26/NH35/NH36 date indicator driving wheel #0802183. Restores accurate date display function. Japanese quality."
title: "SEIKO (SII) 7S26/NH35/NH36 Date Indicator Driving Wheel #0802183 - Sofly"
image: https://www.soflypart.com/wp-content/uploads/2019/05/NH36D.jpg
---
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- **SEIKO (SII) 7S26/NH35/NH36 Date Indicator Driving Wheel #0802183**
[](https://www.soflypart.com/wp-content/uploads/2019/05/NH36D.jpg)
# SEIKO (SII) 7S26/NH35/NH36 Date Indicator Driving Wheel #0802183
$1.00
You Saved
| Brand | Choose an option SEIKO- 
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 |
SEIKO (SII) 7S26/NH35/NH36 Date Indicator Driving Wheel #0802183 quantity
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## Product Description
The **SEIKO (SII) 7S26/NH35/NH36 Date Indicator Driving Wheel (#0802183)** is a genuine Japanese-made component for Seiko 7S26, NH35, and NH36 automatic movements . As a key part of the calendar mechanism, this driving wheel transmits power from the movement to advance the date wheel, ensuring the date changes correctly at midnight and the date alignment in the window is accurate . As an original factory part, it is the ideal choice for replacing worn or damaged date driving wheels to restore proper calendar function.
## Features & Function
- **Genuine Seiko/SII part** – authentic Japanese-made component for 7S26, NH35, and NH36 movements
- **Calendar mechanism component** – drives the date wheel for accurate date display
- **Wide compatibility** – fits 7S26, NH35, NH36, and related 4R calibers
- **Direct replacement** – drop-in replacement for worn or damaged date driving wheels
## Specifications
- **Part Number**: 0802183
- **Compatible Movements**: Seiko 7S26, 7S36, NH35, NH36, 4R35, 4R36, and related calibers
- **Movement Family**: 7S / NH Series
- **Movement Frequency**: 21,600 vph (3 Hz) – NH series / 21,600 vph – 7S26
- **Jewels**: 24 (NH) / 21 (7S26)
- **Power Reserve**: >41 hours (NH) / \~40 hours (7S26)
- **Hacking**: Yes (NH) / No (7S26)
- **Hand-Winding**: Yes (NH) / No (7S26)
- **Origin**: Japan
## Applications
- **Service and overhaul** – replacing worn or damaged date indicator driving wheels in 7S26/NH series movements
- **Calendar function restoration** – resolving issues with date alignment, incomplete date changes, or date not advancing
- **Movement upgrade** – replacing the date driving wheel during 7S26 to NH36 conversions
- Suitable for **professional watchmakers** and **experienced repair technicians**
## FAQs
**1. Is this a genuine Seiko/SII part?**
Yes, this is a **genuine Seiko (SII/TMI) factory part** made in Japan. The part number **0802183** is listed in official Seiko technical documentation for 7S26 and 4R calibers as the date indicator driving wheel .
**2. Which movements is this date driving wheel compatible with?**
This date driving wheel is compatible with **Seiko 7S26, 7S36, NH35, NH36, 4R35, 4R36, and related calibers** . The 7S26 and NH series share similar calendar architectures, making this wheel interchangeable across these movements .
**3. What are the signs that the date driving wheel needs replacement?**
Common signs include **date not advancing at midnight, incomplete date changes, 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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As a key part of the calendar mechanism, this driving wheel transmits power from the movement to advance the date wheel, ensuring the date changes correctly at midnight and the date alignment in the window is accurate\u00a0. As an original factory part, it is the ideal choice for replacing worn or damaged date driving wheels to restore proper calendar function. Features & Function Genuine Seiko/SII part\u00a0\u2013 authentic Japanese-made component for 7S26, NH35, and NH36 movements\u00a0 Calendar mechanism component\u00a0\u2013 drives the date wheel for accurate date display Wide compatibility\u00a0\u2013 fits 7S26, NH35, NH36, and related 4R calibers Direct replacement\u00a0\u2013 drop-in replacement for worn or damaged date driving wheels Specifications Part Number: 0802183\u00a0 Compatible Movements: Seiko 7S26, 7S36, NH35, NH36, 4R35, 4R36, and related calibers\u00a0 Movement Family: 7S / NH Series Movement Frequency: 21,600 vph (3 Hz) \u2013 NH series / 21,600 vph \u2013 7S26\u00a0 Jewels: 24 (NH) / 21 (7S26) Power Reserve: >41 hours (NH) / ~40 hours (7S26)\u00a0 Hacking: Yes (NH) / No (7S26) Hand-Winding: Yes (NH) / No (7S26) Origin: Japan\u00a0 Applications Service and overhaul\u00a0\u2013 replacing worn or damaged date indicator driving wheels in 7S26/NH series movements Calendar function restoration\u00a0\u2013 resolving issues with date alignment, incomplete date changes, or date not advancing Movement upgrade\u00a0\u2013 replacing the date driving wheel during 7S26 to NH36 conversions Suitable for\u00a0professional watchmakers\u00a0and\u00a0experienced repair technicians FAQs 1. 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Competitive pricing on Seiko/Hattori calibers. 3,000+ watch movements and parts in stock. Trusted by watchmakers worldwide. Personalized sourcing support via\u00a0info@soflypart.com\u00a0or WhatsApp\u00a0+86 18620212114.","image":"https://www.soflypart.com/wp-content/uploads/2019/05/NH36D-150x150.jpg","offers":{"@type":"Offer","description":"Product Description The\u00a0SEIKO (SII) 7S26/NH35/NH36 Date Indicator Driving Wheel (#0802183)\u00a0is a genuine Japanese-made component for Seiko 7S26, NH35, and NH36 automatic movements\u00a0. As a key part of the calendar mechanism, this driving wheel transmits power from the movement to advance the date wheel, ensuring the date changes correctly at midnight and the date alignment in the window is accurate\u00a0. As an original factory part, it is the ideal choice for replacing worn or damaged date driving wheels to restore proper calendar function. Features & Function Genuine Seiko/SII part\u00a0\u2013 authentic Japanese-made component for 7S26, NH35, and NH36 movements\u00a0 Calendar mechanism component\u00a0\u2013 drives the date wheel for accurate date display Wide compatibility\u00a0\u2013 fits 7S26, NH35, NH36, and related 4R calibers Direct replacement\u00a0\u2013 drop-in replacement for worn or damaged date driving wheels Specifications Part Number: 0802183\u00a0 Compatible Movements: Seiko 7S26, 7S36, NH35, NH36, 4R35, 4R36, and related calibers\u00a0 Movement Family: 7S / NH Series Movement Frequency: 21,600 vph (3 Hz) \u2013 NH series / 21,600 vph \u2013 7S26\u00a0 Jewels: 24 (NH) / 21 (7S26) Power Reserve: >41 hours (NH) / ~40 hours (7S26)\u00a0 Hacking: Yes (NH) / No (7S26) Hand-Winding: Yes (NH) / No (7S26) Origin: Japan\u00a0 Applications Service and overhaul\u00a0\u2013 replacing worn or damaged date indicator driving wheels in 7S26/NH series movements Calendar function restoration\u00a0\u2013 resolving issues with date alignment, incomplete date changes, or date not advancing Movement upgrade\u00a0\u2013 replacing the date driving wheel during 7S26 to NH36 conversions Suitable for\u00a0professional watchmakers\u00a0and\u00a0experienced repair technicians FAQs 1. 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