The NH38 movement of this watch is an automatic mechanical movement manufactured by Japan Seiko with high accuracy, reliability and longevity. This 3-hand automatic movement features a second hands reset function and bi-directional winding system with an accuracy of -20 to +40 seconds per day. The power reserve is up to 41 hours. Vibration frequency is 6 vibrations per second, equivalent to 21,600 vibrations per hour. The movement carries 24 jewels and anti-magnetic up to 4,800 A/m.