MIYOTA/CITIZEN JS20 Hour Wheel

MIYOTA/CITIZEN JS20 Hour Wheel

$1.50
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Quantity Discount (%) Price
1 - 2 — $1.50
3 - 4 5 % $1.43
5 - 9 7 % $1.40
10 - 14 10 % $1.35
15+ 15 % $1.28
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Product Description

The MIYOTA/CITIZEN JS20 Hour Wheel is a genuine Japanese-made component for the JS20 quartz chronograph movement . As part of the motion work, the hour wheel works with the minute wheel to drive the hour hand for accurate time display . The JS20 is a 12½ ligne movement featuring a 30-minute chronograph, 24-hour indicator at 3 o’clock, and chronograph minute register at 9 o’clock . This brand new original part is essential for watchmakers restoring proper timekeeping function when the original component becomes worn or damaged.

Features & Function

  • Genuine Miyota/Citizen part – authentic Japanese-made component for the JS20 movement 

  • Motion work component – drives the hour hand for accurate time display 

  • 0-jewel movement – designed for the cost-effective JS20 quartz chronograph 

  • Direct replacement – drop-in replacement for worn or damaged hour wheels 

Specifications

  • Compatible Movement: Miyota JS20 

  • Movement Size: 12½ ligne (approx. 28.0mm) 

  • Movement Height: 4.18mm 

  • Hand Hole Sizes: Hour 1.20mm, Minute 0.70mm, Sweep Second 0.17mm, Sub-hands 0.26mm 

  • Battery: 364 / SR621SW 

  • Jewels: 0 

  • Origin: Japan

Applications

  • Service and repair – replacing worn or damaged hour wheels in JS20 movements 

  • Motion work restoration – ensuring smooth and accurate hand alignment

  • Suitable for professional watchmakers and experienced repair technicians

FAQs

1. Is this a genuine Miyota/Citizen part?

Yes, this is a genuine Miyota (Citizen) factory part made in Japan. The JS20 is manufactured by Citizen’s Miyota movement division .

2. Which movement is this hour wheel compatible with?

This hour wheel is designed for the Miyota JS20 quartz chronograph movement. The JS20 features a 24-hour indicator at 3 o’clock, chronograph second register at 6 o’clock, and chronograph minute register at 9 o’clock .

3. What is the function of the hour wheel?

The hour wheel is part of the motion work that drives the hour hand. It receives power from the minute wheel and works with the cannon pinion to enable accurate time display .

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