TMI/Hattori SEIKO VD53/57 Movement Hour Wheel

Product Description

The TMI/Seiko VD53/57 Movement Hour Wheel is a genuine Japanese-made component for the popular VD53 and VD57 quartz chronograph movements from Seiko’s Time Module Inc. (TMI) division. As a core part of the motion work, the hour wheel drives the hour hand for accurate time display, working in conjunction with the minute wheel and cannon pinion. This genuine TMI/Seiko part is essential for watchmakers restoring proper timekeeping function when the original component becomes worn or damaged.

Features & Function

• Genuine TMI/Seiko part – authentic Japanese-made component for VD53 and VD57 chronograph movements

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

• Multi-eye chronograph compatibility – works with the 6-9-12 subdial layout of VD5 series movements

• Essential for service – commonly replaced when hour hand operation becomes irregular

Specifications

• Compatible Movements: TMI/Seiko VD53, VD57 (including A/B/C variants)

• Movement Size: 12¾ ligne (approx. 29.5mm)

• Movement Height: 4.57mm

• Hand Sizes: Hour: 1.10mm / Minute: 0.65mm / Seconds: 0.20mm

• Subdial Layout: Chrono second counter (6 o’clock), 60-minute counter (9 o’clock), 1/10 second or 24-hour (12 or 3 o’clock)

• Battery: SR920SW (371)

• Origin: Japan

Applications

• Service and repair – replacing worn or damaged hour wheels in VD53/VD57 movements

• Motion work restoration – ensuring smooth and accurate hand alignment

• 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 VD53 and VD57 are quartz chronograph movements manufactured by Seiko Instruments Inc. (SII) and distributed by Time Module Inc. (TMI).

2. Which movements is this hour wheel compatible with?

This hour wheel is compatible with the TMI/Seiko VD53 and VD57 families of movements, including variants A, B, and C. These are 12¾ ligne quartz chronograph calibers with a multi-eye subdial layout.

3. What are the signs that the hour wheel needs replacement?

Common signs include hour hand not advancing correctly, misalignment between hour and minute hands, 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 [email protected] or WhatsApp +86 18620212114.