N/a
Great looking rotor with a curiosity factor
High quality. Very pleased with purchase.
Just another high quality case that is great looking and easy to work with.
The full-calendar workhorse.
Genuine Seiko NH36 automatic movement with day and date function, crown at 3 o'clock, with black wheels. A popular upgrade from older 7S26/7S36 calibers, adding hacking and hand-winding alongside the full day+date calendar.
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.
Day and date together.
A full calendar complication: day-of-week plus date, both quick-set. Crown out one click to correct day and date, two clicks to hack and set the time.
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 | Date | 3 or 4 o'clock | Black White |
| NH35 | Date · 6 o'clock dial | 3 or 4 o'clock | Black White |
| NH36 · THIS MOVEMENT | 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 day+date dial pairs with the NH36. 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.

