Seiko (SII) NH36A Automatic Movement (Black Gold / Kanji 3o'clock)
- Reference Number: NH36A
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Vibrations per hour: 21,600 beats
- Power Reserve: 41 hours
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Diameter: 27.40mm (outside) / 29.36mm (casing)
- Rotor Direction: Bi-directional winding
- Functions: Hours, minutes, central seconds, date calendar on 3o'clock
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Shock System: Lower shock absorbing spring + Lower shock absorbing cap jewel + Lower hole jewel frame for shock-absorber
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Manual Winding direction: Clockwise