The workhorse date movement.
Genuine Seiko NH35 automatic movement with date function, crown at 3 o'clock, with white date wheel. The default choice for a date build and the most common upgrade from older 7S26/7S36 calibers, adding hacking and hand-winding the older movements lack.
Two accuracy grades. One genuine Seiko caliber, QC-passed by TMI.
Pick Regulated for watchmaker-tuned precision, or Non-Regulated for Seiko factory spec. Every unit is a genuine Time Module Inc. movement, tested functional before it ships.
Date, done simply.
A clean date complication with quick-set correction. Crown out one click to set the date, two clicks to hack and set the time. The most-used movement in the Seiko mod world for good reason.
Regulated or non-regulated.
Choose Regulated and a certified watchmaker tunes it to 0 to +8 seconds/day before it ships. Choose Non-Regulated for factory-default accuracy of -20 to +40 seconds/day per Seiko's spec. Same movement, your call on precision.
Hacking and hand-winding.
Both built in. The seconds hand stops when you pull the crown for precise time-setting, and you can manually wind it. The popular reason modders upgrade from older 7S26/7S36 calibers.
In every box.
Each movement ships with a full-length threaded stem and a dummy stem with plastic crown. Additional full-length threaded stems are available separately.
How the NH family compares
| Caliber | Complication | Crown Position | Version |
|---|---|---|---|
| NH34 | GMT + Date | 3 or 4 o'clock | White |
| NH35 · THIS MOVEMENT | Date | 3 or 4 o'clock | Black White |
| NH35 | Date · 6 o'clock dial | 3 or 4 o'clock | Black White |
| NH36 | Day + Date | 3 o'clock only | Black White |
| NH36 | Day + Date | 4 o'clock only | Black White |
| NH38 | Open Heart (no date) | 3 or 4 o'clock | View |
| NH70 / 71 / 72 | Skeleton (no date) | 3 or 4 o'clock | NH72 |
Most NH movements fit either a 3 or 4 o'clock crown — the stem threads either way and the date disc isn't affected. The NH36 is the exception: its day wheel is pre-aligned for one crown position, so pick the standard (3 o'clock) or the 4 o'clock version to match your case. Every caliber shares the same 24-jewel automatic platform, 21,600 vph beat rate, and 41+ hour power reserve. Click any version to go straight to that product.
For experienced modders only
Movement swapping is recommended only for individuals with the right skills and experience. Every movement passes Time Module Inc. (TMI) quality control before shipping and is guaranteed fully functional on arrival. Given the DIY nature of modding and Seiko's trade practices, movements cannot be returned once shipped. We are not responsible for damage incurred during fitting.
Where this movement fits
A date dial pairs with the NH35, the date window must line up with the dial's aperture (3 o'clock). Fits every Ultra Thin Edition case that takes a TYPE M movement.
All photos showing movements fitted with dials, hands, or cases are for illustration only and are not included with the movement purchase.
Everything worth knowing before you build.
Customers praised this genuine NH35 automatic movement as "rock solid" and "reliable," perfect for watch modding. Reviews highlighted exceptional accuracy, with one achieving +/- 5 seconds per day. The optional regulation service was valued. Customers noted competitive pricing, incredibly fast shipping, and excellent packaging.
Adriel is incredibly friendly, quick with delivery, and has the best pricing around. All of these combined make her my go-to person for Seiko movements. I've done multiple NH35 builds of different styles, and they've all turned out great. I've even been able to regulate the movements to +/- 5 seconds per day - close to chronometer certification level.
Yes, it might just be an NH 35, but the movements from Lucius Atlier are always quality products. I guess the difference is in their quality control
Bought a regulated NH35 for a new Nautilus build. Movement was delivered swiftly with an uncut stem as well as the shipping/testing stem. Haven’t had a chance to put it on a time grapher yet, but from what I’ve seen after a day of wearing the watch, the movement looks to be pretty spot on.
I’m in the US and my order was in my hands in 5 days. Packaged perfectly. Product was in excellent shape and couldn’t be happier. So ready to build my Nautilus.
I ordered a GS 39mm case, explorer dial, snowflake hands and the NH35 movement as an fully assembled watch. Communication and follow up was super quick, pleasant and accurate. As was shipping. And the watch is beautiful and even better than expected.
The little touches with the handwritten note, the very secure packaging and the speed of finalising and delivering my order was top notch
This NH35a movement works perfectly, after 24 hours observation I can see no deviation.
Adriel and Lucius Atelier consistently exceed all expectations and have supplied the components for numerous builds. I will continue to look to them first and foremost for parts and mods.
As usual, Adriel was super quick with delivery of my NH35 movement orders and the pricing is unbeatable. While there are very many good NH35 clones that are a little less expensive, I like knowing that I am getting a genuine Seiko here for only a few dollars more. Still my go-to movement supplier.
Rock solid Seiko movement although the factory deviation is pretty broad. It’s great that LT regulates them, and it’s well worth the added cost.
Only had it in the new build for a few days, but so far it seems to be sticking within the regulated range.
NH35 is a reliable seiko movement, perfect for modding. The price is competitive.
I have to say, I've ben modding watches for at least 10 years. 99% of the mod parts are out of Singapore, but to date, this shipment was the fastest by a long shot. So far everything looks good but I won't get to assemble for a few days. Thanks!
Very happy with the products from LuciusA
Are these hand type M or L? Trying to find out if this will fit the new ultra-thin explorer case.
Hello John!
Thanks for expressing interest in our mod parts!
>> Are these hand type M or L?
It is Type M. All our NH35/36/38/72 will fit EC36UT.
Thanks for reminding me. I will have to update the specs details.
Hope this helps. Let me know if you have anymore questions.
Cheers,
Adriel
When do you get restock (regulated version)?
Hello Juho!
Thanks for expressing interest in our mod parts.
>> When do you get restock (regulated version)?
In Jan/Feb 2022, subject to changes. As SEIKO has closed its only NH movement manufacturing factory since early 2021 due to COVID19, the entire world is in shortage of NH movements. Prices of NH movements are going up every month (although we still keep our prices low).
Whatever NH movements on the market are old existing stocks. So grab whatever you can for now. There is no certainty that SEIKO NH factory will be back in Jan 2022. Closure may prolong if the COVID19 persist.
Hope this helps. Let me know if you have any more questions.
Cheers,
Adriel
Hello, I have 2 questions:
1. Is this NH35 movement indeed hackable and can it be manually wound?
2. The regulated version is currently (7th of July) unavailable, can you tell me, when it will restock?
Hello Jimmy!
Thanks for expressing interest in our mod parts.
>> 1. Is this NH35 movement indeed hackable and can it be manually wound?
Yes. All NH movements are hackable and can be manually wound.
>> 2. The regulated version is currently (7th of July) unavailable, can you tell me, when it will restock?
Early Aug. Regulated versions takes a little longer than usual.
Hope this helps. Let me know if you have any more questions.
Cheers,
Adriel
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