Hattori VD54 Movement Chronograph Minute Wheel

Product Description

The TMI/Seiko VD54 Movement Chronograph Minute Wheel is a genuine Japanese-made component for the popular VD54 quartz chronograph movement. This precision gear drives the 60-minute counter subdial at the 9 o’clock position, a critical part of the chronograph elapsed-time recording function. This genuine TMI/Seiko part is essential for watchmakers restoring proper chronograph function when the original component becomes worn or damaged.

Features & Function

• Genuine TMI/Seiko part – authentic Japanese-made component for the VD54 chronograph movement 

• Chronograph module component – drives the 60-minute counter subdial at 9 o’clock for accurate elapsed time measurement 

• Integrated chronograph system – the minute hand works in conjunction with the chronograph seconds hand at 6 o’clock 

• Essential for service – commonly replaced when chronograph minute counter becomes irregular or fails to reset

Specifications

• Compatible Movement: TMI/Seiko VD54 (including A/B/C variants) 

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

• Movement Height: 3.97mm 

• Subdial Layout: 60-minute counter at 9 o’clock, chronograph seconds at 6 o’clock, 24-hour indicator at 3 o’clock 

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

• Battery: 371 / SR920SW 

• Origin: Japan

Applications

• Service and repair – replacing worn or damaged chronograph minute wheels in VD54 movements

• Chronograph function restoration – ensuring accurate 60-minute counter operation and proper reset 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 VD54 is a quartz chronograph movement manufactured by Seiko Instruments Inc. (SII) and distributed by Time Module Inc. (TMI) .

2. What is the difference between VD54 and VD53?

The main difference is that VD53 has a date window between 4 and 5 o’clock and is taller at 4.57mm, while VD54 has no date window and is slimmer at 3.97mm .

3. How does the chronograph minute wheel function?

The chronograph minute wheel drives the 60-minute counter at 9 o’clock. During chronograph operation, it works with the chronograph seconds hand (at 6 o’clock) to record elapsed time up to 60 minutes .

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.