NH38 NH38A Automatic Movement – Seiko (SII/TMI) – CT505


In stock

Seiko (SII/TMI) NH38 NH38A Automatic Movement


  • NH38A Automatic
  • NO date or day feature
  • 21600 BPH
  • 24 Jewels Hacking Hand-wind
  • Power Reserve 41hrs
  • Complete with stem
  • Hand sizes H/M/S 150/89/21
  • Ligne/mm size 12/26.00mm
  • Height 5.32mm
  • Height with cannon pinion 7.55mm

Description – Brand new 100% genuine Seiko SII movement incl full length stem supplied regulated

  • Please note – We also manufacture an extensive range of Crowns.
  • Factory Regulated
  • All our movements are fully checked and regulated by our master watchmaker before shipping to the customer.
  • INFO – You are purchasing a complete movement please ensure you are fully aware of the work required and parts needed to complete your build. If you are unsure and not undertaken this before, please do appropriate research before purchase. The forums and YouTube are an excellent resource. Check our education page for an excellent tutorial video link if you are planning to do this work.
  • Ref dimensions – OD 27.4mm Casing Dia 29.36mm (with dial spacer)
  • Suitable for – Watch modding 7S26 upgrade
  • Additional info – A very popular modding movement. Upgrade to 24 Jewels with hacking and hand winding feature. Used for no day/date dials and suitable for “open heart” dial option
  • RETURNS – In accordance with the normal practice in the trade regarding movements we unfortunately are not able to accept returns on this item.

20 reviews for NH38 NH38A Automatic Movement – Seiko (SII/TMI) – CT505

  1. Kevin C. (verified owner)

    Verified reviewVerified review - view originalExternal link

    Smooth transaction and quick, trackable shipping. Mucho R-r-r-especto!

  2. Chaise C. (verified owner)

    Verified reviewVerified review - view originalExternal link

    Beautiful movement, works great!

  3. admin (store manager)

    Hi John! Thanks for letting us know! We will refund the regulation fee on this and talk with our regulator about this mishap. We appreciate you bringing this to our attention.

  4. Michael Smith (verified owner)

    Verified reviewVerified review - view originalExternal link

    Movement is running well so far and I expect it to continue.

  5. admin (store manager)

    Hi we sent you tracking info on 8/21 via email and it was delivered on 8/26: https://tools.usps.com/go/TrackConfirmAction.action?tLabels=9400111206215728666757

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