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Seiko (TMI) NH35 Automatic Movement - Date (White)

Genuine SEIKO NH35 Movement with date function at 3 o'clock crown position with white wheels.

A highly popular choice for movement upgrade from 7s26/7s36 movements given NH36 movement additional hacking and manual wind functions.

With two available options:

    Hugely improved on the accuracy! These are regulated by certified watchmakers from 0 to +8 seconds per day.
    Fresh out of the factory defaults without any regulation. Accuracy are in accordance to SEIKO's specification of -20 to +40 seconds per day.
Each movement comes with one dummy stem with plastic crown and one full length threaded stem. Additional full length threaded stems are available separately.

Learn how to upgrade your movement, click here

IMPORTANT: Movement upgrade is ONLY recommended for individuals with the right skillsets and experience. Lucius Atelier is not responsible for any damage to the movement during the fitting process. All movements passed Time Module Inc. (TMI) QC prior to shipping are guaranteed to be a fully functional movement. Given the high degree of DIY nature and Seiko's trade practices, unfortunately, we are unable to accept any returns.

Made by Time Module Inc. (TMI)


    1. Manufacturer Time Module Inc. (TMI)
    2. Caliber NH35A
    3. Movement Type Automatic, Mechanical
    4. Hand Height Type M
    5. Movement Diameter 27.40mm
    6. Casing Diameter 29.36mm (with dial holding spacer)
    7. Movement Height 5.32mm
    8. Jewels 24 jewels
    9. Beats Per Hour 21,600 vph (6 vibrations per second)
    10. Addition Function Date display
    11. Hacking Yes
    12. Manual Winding Yes
    13. Winding Direction Clockwise
    14. Power Reserve More than 41 Hours
    15. Hands Fitting Size H:1.5mm, M:0.88mm, S:0.2mm
    1. Movement x1
    2. Full length threaded stem x1
    3. Dummy stem & plastic crown x1
    1. To learn how to upgrade your movement, search YouTube: NH36 Movement Upgrade

Customer Reviews

Based on 10 reviews
Michael (Perth, AU)
Fantastic Movements always

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


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.

Eric W. (McKinney, US)
Using this mod part for: Aftermarket Nautilus case.
NH35 Nautilus Build

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.

Scott M. (Laingsburg, US)
Using this mod part for: 36mm Nautilus
Amazing service up front.

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.

Ronni B. (Frederiksberg, DK)
Using this mod part for: N/A
My do it all watch

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

Alexis D. (Rouen, FR)
Using this mod part for: Atelier Lucius dial and case
Reliable movement

NH35 is a reliable seiko movement, perfect for modding. The price is competitive.

Tracy R. (Immokalee, US)
Using this mod part for: titanium sk007 case
Fastest watch parts shipment ever!

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!

Ion C. (Dublin, IE)
Always quality

Very happy with the products from LuciusA

Julnik (Rambouillet, FR)
Using this mod part for: Watch from scratch: case and movement from Lucius Atelier, dial and hands from another supplier.
Incredible accuracy

This NH35a movement works perfectly, after 24 hours observation I can see no deviation.