Seiko 4R36A

The Seiko 4R36A is a automatic watch movement with operating at 21600 vibrations per hour (6.00 Hz), a 41-hour power reserve, 24 jewels, dimensions of 27.4mm × 5.32mm, hacking, handwinding, day, date complications. Manufactured in Japan. This movement powers watches such as Seiko SRPE51K1, Seiko SRPE53K1 , and Seiko SRPE55K1.