SEIKO (SII) NH05/NH06 Pawl Lever

Quantity	Discount (%)	Price
1 - 2	—	$2.00
3 - 4	5 %	$1.90
5 - 9	7 %	$1.86
10 - 14	10 %	$1.80
15+	15 %	$1.70

Quantity

Discount (%)

Price

1 - 2

—

$2.00

3 - 4

5 %

$1.90

5 - 9

7 %

$1.86

10 - 14

10 %

$1.80

15+

15 %

$1.70

Quantity	Discount (%)	Price
1 - 2	—	$2.00
3 - 4	5 %	$1.90
5 - 9	7 %	$1.86
10 - 14	10 %	$1.80
15+	15 %	$1.70

Product Description

The SEIKO (SII) NH05/NH06 Pawl Lever is a genuine Japanese-made component for these compact automatic movements. The pawl lever is the critical component of Seiko’s proprietary Magic Lever bidirectional automatic winding system—a simple yet highly efficient mechanism that converts rotor movement in both directions into energy to wind the mainspring. Developed in 1959, the Magic Lever system is a hallmark of Seiko’s engineering philosophy, using fewer parts than conventional reverser-gear systems while offering greater efficiency. This brand new original part is essential for watchmakers restoring proper automatic winding function when the original pawl lever becomes worn or damaged.

Features & Function

Genuine Seiko/SII part – authentic Japanese-made component for NH05 and NH06 movements

“Magic Lever” winding system – the core component of Seiko’s proprietary bidirectional automatic winding mechanism

Bidirectional winding – converts rotor movement in both clockwise and counterclockwise directions into mainspring energy

Simple & robust design – fewer parts than conventional reverser-gear systems, highly reliable and durable

NH0 family compatibility – designed for the compact 7¾”’ NH05 and NH06 calibers

Specifications

Compatible Movements: Seiko NH05 (date), NH06 (day-date)

Movement Family: NH0 Series

Movement Size: 7¾”’ (approx. 17.5mm)

Movement Height: 5.92mm

Jewels: 21

Frequency: 21,600 vph (3 Hz)

Power Reserve: >40 hours

Rotor Winding Direction: Bi-directional (Magic Lever)

Origin: Japan

Applications

Service and overhaul – replacing worn or damaged pawl levers in NH05/NH06 movements

Automatic winding repair – restoring efficient bidirectional winding of the mainspring

Magic Lever system restoration – ensuring proper engagement of the lever mechanism for consistent power delivery

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 NH05 and NH06 are manufactured by Seiko Instruments Inc. (SII) and distributed by Time Module Inc. (TMI).

2. What is the “Magic Lever” and how does it work?

The Magic Lever (pawl lever) is Seiko’s proprietary bidirectional automatic winding system introduced in 1959. Unlike conventional Swiss-style systems that use complex reverser gears, the Magic Lever is a specially shaped double-ended pawl that picks up rotor motion in both clockwise and counterclockwise directions and transfers it efficiently to the winding mechanism. This results in faster winding with fewer parts—a hallmark of Seiko’s engineering philosophy.

3. Which movements is this pawl lever compatible with?

This pawl lever is designed for Seiko NH05 and NH06 movements. The NH05 features a date display, while the NH06 adds a day-date complication, but both movements share the same automatic winding system architecture.