NH36 SII Automatic Watch Movement NH36 is a SII product manufactured by the Seiko Group of Companies. This is a self-winding (Automatic) watch movement, 3 hands (hour/minute/sweep second), 12 ligne, with a diameter of 27.40 mm, a movement height of 5.32 mm and a total height of 7.56mm. This is a 24 jewel movement with day and date at the 3 o'clock position. Hand dimensions: 150/90/21 (hour/minute/sweep second). Stem is a part number 351-200.