Family: NH
The NH05A is an automatic movement manufactured by Seiko Instruments Inc., belonging to the in-house NH caliber family. It measures 17.5mm in diameter, corresponding to 7¾ lines, making it suited for smaller case sizes. The movement remains in production.
Last updated 29 Apr 2026Suggest a correction
TECHNICAL SPECIFICATIONS
Movement Type
Automatic
Diameter
17.5mm
Display Type
Analog
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