Seiko (SII) NH36A Automatic Movement


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Genuine Seiko NH36A Automatic Movement with Day Date

Available in three options:

Factory Standard (3H): For cases with 3 O'Clock crown position.
Comes regulated directly from SII factory.

Regulated (3H): For cases with 3 O'Clock crown position.
This NH36A movement is regulated by our watchmakers, ensuring an accuracy of 0 to +10 secs/day.

Regulated (4H)For cases with 4 O'Clock crown position.
This NH36A movement is regulated by our watchmakers, ensuring an accuracy of 0 to +10 secs/day.

Comes supplied with watch stem.


Manufacturer: Seiko Instruments (SII)
Caliber Number: NH36A
Movement Type: Automatic
Jewels: 24
Vibrations Per Hour: 21,600 bph
Shock System: Shock-absorber device for balance staff
Power Reserve: more than 41 hours
Winding Direction: Bi-directional
Functions: Day & Date display with quick day & date correction, second-hand reset

Customer Reviews

Based on 228 reviews
Dan Pierce (Covington, US)
Seiko (SII) NH35A Automatic Movement

The movement installation went without a hitch. The daily accuracy is very good w/ no need for regulation. Very happy and plan on ordering more.

S. Nullifer Timetick (Santa Clara, US)
NH36A - Rugged and Reliable

The NH36A Seiko watch movement really speaks for itself, while the regulated movement tightens the accuracy by a significant number. These movements, like most high-precision devices manufactured in Japan, all have the genetics of Deming and Juran's quality initiatives as part of thier lifetime characteristics. I doubt anyone would argue that the movements, when regulated, may be the best possible value.
Namoki's delivery history is 5 stars from my experience. Ordering parts off the website is almost too easy. The site almost navigates itself.
The best experience I have had was when I needed to contact customer service for a part that was recieved broken. I sent an email to them thinking it would take a week or longer to resolve, I went and reordered the same part so I would be assured to have it when needed. Before I had an answer from them, they were ready to ship the replacement in 48 hours. I recieved the replacement part before the part I ordered, and I did not have to do anything. I truly give everyone who works at Namoki congratulations for upholding the things that really matter to me - quality, delivery, customer care, and communication.
Namoki is a model online business - no doubt there are many that could learn from you. Great work to all !

Half.past.three (Coppell, US)
Great movement

Saves the trouble of swapping to a black day/date wheel.

Dustin (Davis, US)
Great movement

Classic 4 o'clock stem placement. Works and fits like a charm

Tim (Wellington, NZ)
Namoki Assurance

My third movement purchase of a Seiko NH36 from Namoki, I don't mind paying a bit extra, as I know that the movements are bonafide, and are already regulated.
Usual great service from Namoki.