CT500 – Seiko (SII/TMI) NH36A Automatic Movement


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  • NH36A Automatic – S11/TMI
  • White/Black day/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 and tested 100% genuine manufactured by Seiko Instruments NH36A 24J SII/TMI crown at 3 movement including full length stem complete with fitted temporary setting crown/stem. All the movements we sell are fully checked for function prior to shipping to the customer. We offer a regulated only.
  • Suitable for – Watch modding 7S26 upgrade.
  • Please note – we also supply a Hi-Performance 3 gasket threaded Crown CT208 complete with stem in the shop – check it out.
  • 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.
  • Ref dimensions – OD 27.4mm Casing Dia 29.36mm (with dial spacer).
  • Additional info – A very popular modding movement. Upgrade to 24 Jewels with hacking and hand-wind feature.
  • NOTE –The buyer is responsible for the correct and careful fitting of the dial, hands and regulation. Unfortunately, a number of not so careful DIY modders have totally scrapped movements during this process. Crystaltimes is not responsible for any damage to movements during the fitting process. Check our NOOB CENTRE for an excellent tutorial video link on this subject.
  • RETURNS – In accordance with the normal practice in the trade regarding movements we unfortunately are not able to accept returns on this item.

13 reviews for CT500 – Seiko (SII/TMI) NH36A Automatic Movement

  1. loic-1991 (verified owner)

    CT500 NH36 regulated.
    That magic moment when you launch the movement and the second hand make his first step.

    Image #1 from loic-1991
    Image #2 from loic-1991
  2. John S. (verified owner)

    Rugged reliable watch movement.

  3. Johannes (verified owner)

  4. Edward Robinson (verified owner)

  5. Fraser Delaney (verified owner)

    -2 seconds a day consistently. Winds like a dream

    Image #1 from Fraser Delaney
  6. torstein (verified owner)

  7. Anonymous (verified owner)

  8. Jonatan (verified owner)

  9. Peter (verified owner)


  10. Peter (verified owner)

    Quality movement

  11. Peter (verified owner)

    Top movement

  12. Peter (verified owner)

    Great thanks

  13. Peter (verified owner)

    Perfect thanks

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