TMI/Hattori SEIKO VD77 Movement Small Hour Hand Wheel

Product Description

The TMI/Seiko VD77 Movement Small Hour Hand Wheel is a genuine Japanese-made component for the VD77 quartz movement. In this movement, the small hour hand wheel likely drives the 24-hour indicator subdial located at the 12 o’clock position, which functions as a day/night or AM/PM indicator and follows the main hour hand . This genuine TMI/Seiko part is essential for watchmakers restoring proper 24-hour indicator function when the original component becomes worn or damaged.

Features & Function

• Genuine TMI/Seiko part – authentic Japanese-made component for the VD77 movement

• 24-hour indicator drive – drives the 12 o’clock AM/PM subdial hand following the main hour hand

• VD7 Multi-eye series compatibility – part of the VD7 family featuring small seconds at 6 and 24-hour at 12

• Essential for service – commonly replaced when the 24-hour hand stops or becomes misaligned

Specifications

• Compatible Movement: TMI/Seiko VD77, VD77A 

• Movement Size: 10.5 ligne (approx. 23.7mm) 

• Movement Height: 3.45mm 

• Subdial Layout: Small seconds at 6 o’clock, 24-hour indicator at 12 o’clock 

• Hand Sizes: Hour: 1.20mm / Minute: 0.70mm / Small hands: 0.20mm 

• Battery: 377 / SR626SW 

• Origin: Japan

Applications

• Service and repair – replacing worn or damaged small hour hand wheels in VD77 movements

• Subdial function restoration – resolving issues with the 24-hour indicator hand

• 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 VD77 is a quartz movement manufactured by Seiko Instruments Inc. (SII) and distributed by Time Module Inc. (TMI) .

2. Which movements is this small hour hand wheel compatible with?

This component is compatible with the TMI/Seiko VD77 and VD77A movements. The VD77 is a 10.5 ligne quartz movement featuring a subdial layout with small seconds at 6 o’clock and a 24-hour indicator at 12 o’clock .

3. How does the 24-hour indicator function in the movement?

The 24-hour indicator hand follows the main hour hand and cannot be set independently. It displays a 24-hour cycle, serving as a day/night or AM/PM indicator .

Why Choose SOFLY Watch Parts?

• Fast worldwide shipping within 3 business days.

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• Personalized sourcing support via [email protected] or WhatsApp +86 18620212114.