Seiko (SII/TMI) NH34 GMT Automatic Movement (Black)


Say hello to hacking, handwinding and finally, a true second hour hand GMT function!

Genuine Seiko NH34A GMT Automatic Movement with Black Date Wheel

Comes supplied with watch stem.


Manufacturer: Seiko Instruments (SII) / Time Module (TMI)
Caliber Number: NH34A
Movement Type: Automatic
Jewels: 24
Vibrations Per Hour: 21,600 bph
Shock System: Seiko Diashock
Power Reserve: ~41 hours
Winding Direction: Bi-directional
Functions: Central hours, central minutes, central seconds, GMT hand, date calendar at 3:00
Free International Delivery
  • Your order of S$50 (or equivalent in your local currency) or more gets free standard shipping, and orders above S$200 is eligible for free express shipping! Shipping costs will be automatically deducted at checkout.

Customer Reviews

Based on 418 reviews
René K. (Amsterdam, NL)
Nice movement.

I bought this movement for my Tudor 58 look-alike watch. Unlike the original watch, I used a glass case back. Then a gold-colored movement like this one with a beautiful rotor comes into its own.
The handling, packaging and delivery were top notch as always.

Marko D. (Dubai, AE)
Perfect 🤩

I’m really satisfied with their customer service, delivery and quality of the products 👌👌👌

Taylor R. (Wasaga Beach, CA)
Movement spacer

Have the black spacer and the grey spacer is required to install the clear caseback. It’s necessary and to the point.

Sylvain O. (Nantes, FR)

très bon produit , fonctionne parfaitement et très fiable

René K. (Amersfoort, NL)
Complete the circle.

In my first self-built watch I used an NH70 movement. A spacer ring, to be placed between the movement and the dial, is supplied with te movement in combination with two screw clamps. This will be the way to go for certain watch cases, but in the SKX007 case I used I could not get the movement perfectly centered. It also caused problems to properly attach the dial to the movement. After some fiddling, I finally ordered a spacer ring, which solved all these problems.