DIY WATCH CLUB - Gold movement - Seiko NH71A skeleton movement

TMI NH71A Movement by Seiko (Gold Skeleton Movement)

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Seiko NH71A movement description

A reliable movement from TMI (Seiko) TMI NH71A skeleton movement without date function (gold color)

Key specifications:

  • Up to 41+ hours of power reserve
  • BPH: 21600
  • Accuracy: -20~+40 sec per day
  • Hack-second or stop-second feature allows you to set the time precisely
  • 24 Jewels
  • Function: 3 Hands, Automatic and hand winding 
  • Diameter: 27.40 mm
  • Côtes de Genève decorated rotor


Our DWC Divers and Expedition watches have variants that utilize this movement. Please check their product description before purchasing the movement

Along with the plastic movement holder, this movement will fit most Seiko automatic watches. You may need a skeleton dial or a dial without a date opening to make the most out of this skeleton movement design.