The Seiko 7N43C watch movement is an automatic, mechanical movement. It features hours, minutes, and seconds functions. It has a power reserve of approximately 38 hours. The movement operates at a frequency of 28,800 vibrations per hour (4Hz). It incorporates a date function. The movement is equipped with 25 jewels. It has a diameter of 25.6mm and a thickness of 4.6mm. The Seiko 7N43C movement is widely recognized for its accuracy and reliability.