Seiko (TMI) NH36 Automatic Movement - Day Date (White)

Name: Seiko (TMI) NH36 Automatic Movement - Day Date (White)
Brand: SEIKO
SKU: NH36 W.Reg.
Price: 150.0 SGD
Availability: InStock

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$100 SGD - $150 SGD

The full-calendar workhorse.

Genuine Seiko NH36 automatic movement with day and date function, crown at 3 o'clock, with white 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.

Specs
Compatibility
What's Included
How To Mod

1. Manufacturer Time Module Inc. (TMI)
2. Caliber NH36A
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. Additional Function Day & Date display
11. Hacking Yes
12. Manual Winding Yes
13. Winding Direction Clockwise
14. Power Reserve More than 41 hours
15. Accuracy (Regulated) 0 to +8 seconds/day
16. Accuracy (Non-Regulated) -20 to +40 seconds/day
17. Hands Fitting Size H: 1.5mm, M: 0.88mm, S: 0.2mm
Where this movement fits
1. Hand height Type M (standard) — confirm your case accepts Type M before fitting
2. Our cases All Ultra Thin Edition cases (TYPE M)
3. Dial 28.5mm Seiko Mod dials — match the date aperture to the movement
4. Hands NH-series compatible
A day+date dial pairs with the NH36. Fits every Ultra Thin Edition case that takes a TYPE M movement.
1. 1x NH36 movement
2. 1x Full-length threaded stem
3. 1x Dummy stem with plastic crown
All photos showing movements fitted with dials, hands, or cases are for illustration only and are not included with the movement purchase.

Which dial does the NH36 need, and will an NH35 work instead?

The NH36 is a day-date movement and needs a day-date dial. Don't fit an NH35 under a day-date dial — with no day disc, you'd see bare movement through the day window. The NH36 has its crown at 3 o'clock; if your case has a 4 o'clock crown, choose the 4 o'clock NH36 version instead.

Why does the NH36 come in 3 o'clock and 4 o'clock versions?

Because of the day wheel. Unlike a date disc, the day wheel is pre-aligned to a specific crown position so the day text reads upright in the window. We stock a 3 o'clock version and a 4 o'clock version — pick the one matching your case's crown position. (Date-only and no-date calibers don't have this constraint; they fit either crown.)

What's the difference between Regulated and Non-Regulated?

Regulated movements are tuned by a certified watchmaker to 0 to +8 seconds per day before they ship. Non-Regulated movements run at Seiko's factory-default accuracy of -20 to +40 seconds per day. It's the same movement either way — Regulated just buys you tighter timekeeping out of the box.

Is this a Type M or Type L movement, and does it matter?

This is a Type M movement. Type M and Type L are Seiko's two factory hand-fitting heights; Type L sits about 0.4mm taller. Ultra Thin Edition cases have tight hand-to-sapphire clearance, so they take Type M only. Always confirm Type M before fitting.

Can I return a movement if my mod doesn't work out?

Movements can't be returned once shipped. Given the DIY nature of modding and Seiko's trade practices, all movement sales are final. Every unit passes TMI quality control and is guaranteed fully functional on arrival — but the fitting itself is at your own risk, so this movement is recommended for experienced modders only.