SEIKO (SII) NH35 Hour Wheel #0273182

Product Description

The SEIKO (SII) NH35 Hour Wheel (#0273182) is a genuine Japanese-made component designed for the NH35, NH36, and compatible automatic movements. 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 brand new original part is essential for watchmakers restoring proper timekeeping function when the original component becomes worn or damaged.

Features & Function

• Genuine Seiko/SII part – authentic Japanese-made component for NH35 and compatible NH36/NH37/NH38/NH39 movements

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

• NH family compatibility – fits multiple variants across the NH series

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

Specifications

• Part Number: 0273182

• Compatible Movements: Seiko NH35, NH36, NH37, NH38, NH39

• Movement Family: NH Series (Basic Mechanical Series)

• Movement Diameter: 27.4 mm

• Movement Height: 5.32 mm

• Jewels: 24

• Frequency: 21,600 vph (3 Hz)

• Power Reserve: ~41 hours

• Origin: Japan

Applications

• Service and overhaul – replacing worn or damaged hour wheels in NH35 and compatible movements

• Motion work restoration – ensuring smooth and accurate hand alignment

• Suitable for professional watchmakers and experienced repair technicians

FAQs

1. Is this a genuine Seiko/SII part?

Yes, this is a genuine Seiko (SII/TMI) factory part made in Japan. The NH series is manufactured by Seiko Instruments Inc. (SII) and distributed by Time Module Inc. (TMI). The part number 0273182 is the official Seiko designation for the NH35 hour wheel.

2. Which movements is this hour wheel compatible with?

This hour wheel is compatible with Seiko NH35, NH36, NH37, NH38, and NH39 movements. The differences between these calibers are mainly related to complications (date, day-date, 24-hour indicator, open heart), but the motion work architecture is shared across them.

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 during servicing.

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.