CT501 – Seiko (SII/TMI) NH35A Automatic Movement


In stock


  • NH35A Automatic S11/TMI
  • White/Black date at 3
  • 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

General Information:

  • Description – Brand new 100% genuine Seiko manufactured SII/TMI movement incl full length stem supplied. We offer a regulated only
  • Suitable for – Watch modding 7S26 upgrade
  • Ref dimensions – OD 27.4mm Casing Dia 29.36mm (with dial spacer)
  • Please note – We also supply a Hi-Performance 3 gasket threaded Crown CT208 with laser engraved options complete with stem in the shop – check it out
  • All our movements are fully checked for function prior to 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 the 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 NOOB CENTRE for an excellent tutorial video link if you are planning to do this work.
  • Additional info – A very popular modding movement. Upgrade to 24 Jewels with hacking and hand winding feature.
  • RETURNS – In accordance with the normal practice in the trade regarding movements we unfortunately are not able to accept returns on this item

12 reviews for CT501 – Seiko (SII/TMI) NH35A Automatic Movement

  1. Tommy Myren (verified owner)

  2. paul sumner (verified owner)

    Timekeeping is spot on

  3. M D (verified owner)

  4. Lucien (verified owner)

  5. Chris Gillam (verified owner)

    I used this movement to make a watch for my daughter.

    Image #1 from Chris Gillam
    Image #2 from Chris Gillam
  6. philippe (verified owner)

    At the top for the regulation. High precision

  7. Glenn Thomson (verified owner)

    Never had an issue buying these movements from SeikoMods.

  8. Vaysen Udaiyan (verified owner)

  9. imc22 (verified owner)

    Works as expected

  10. Iain (verified owner)

    Fantastic movement regulated well

  11. Warren (verified owner)

  12. mark (verified owner)

Only logged in customers who have purchased this product may leave a review.