TMI/Hattori SEIKO VK63 Winding Pinion

TMI/Hattori SEIKO VK63 Movement Winding Pinion

$1.00
You Saved

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
x
Checkout
  • repair Covers 99% of Repair Needs
  • Wholesale Discounts
  • Fast Global Shipping
  • 24/7 Customer Support

Product Description

The TMI/Seiko VK63 Movement Winding Pinion is a genuine Japanese-made component for the VK63 meca‑quartz chronograph movement . As part of the keyless works, this pinion transfers manual winding motion from the crown to the movement, enabling time and date setting. This genuine TMI/Seiko part is essential for watchmakers restoring proper crown function when the original component becomes worn or damaged.

Features & Function

  • Genuine TMI/Seiko part – authentic Japanese-made component for the VK63 meca-quartz movement

  • Keyless works component – transfers manual winding motion from the crown to the movement

  • Enables time/date setting – essential for reliable crown operation and calendar adjustment

  • Essential for service – commonly replaced when crown operation becomes irregular or fails to engage

Specifications

  • Compatible Movement: Hattori/TMI VK63, VK63A

  • Movement Size: 13½ ligne (approx. 30.0mm) 

  • Movement Height: 5.10mm 

  • Stem Reference: 0351 177 (tap 10) or 351892 (tap 11) 

  • Battery: 394 / SR936SW 

  • Origin: Japan

Applications

  • Service and repair – replacing worn or damaged winding pinions in VK63 movements

  • Crown function restoration – ensuring smooth time and date setting operation

  • 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 VK63 is a meca‑quartz chronograph movement manufactured by Seiko Instruments Inc. (SII) and distributed by Time Module Inc. (TMI) .

2. What is the function of the winding pinion?

The winding pinion is part of the keyless works mechanism that transfers manual winding motion from the crown to the movement, enabling time and date setting functions.

3. What are the signs that the winding pinion needs replacement?

Common signs include difficulty setting the time or date, loose crown operation, failure to engage the setting mechanism properly, or visible wear 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 [email protected] or WhatsApp +86 18620212114.

Our Popular Items