Seiko (SII/TMI) NH34 GMT Automatic Movement


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

Genuine Seiko NH34A GMT Automatic Movement

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 448 reviews
Alexandre C. (Deurne, BE)
Beautiful movement but exclusive grey spacer

It's a great looking skeletonized movement.
Be aware, it does not come with a grey spacer like the other Seiko movements NH35, NH36,... So don't forget to buy it separetely.

Jonathan B.
RavenClaw Mod

Awesome Movement, simple and fast shipping along with the ordered parts. Works perfectly and packaging is always great!

A. W. (Petaling Jaya, MY)
NH35A movement

It's a good movement running at accurate time.

Jason W. (Saskatoon, CA)
Excelent movement

I bought this movement to replace a damaged one in my king turtle. The black day date wheel makes a significant upgrade to the visuals and it keeps fantastic time straight out of the box. My watch is now running between 0 to plus 3 seconds a day. Previously it was running at least 1 minute slow a day. Couldn't be happier


It works and is on time!