Details
The Miyota 8215 is a Japanese automatic wristwatch movement that is used by many watchmakers (and watch factories). Miyota is part of the Citizen group of companies. It is a non-hacking 21 jewels movement with a unidirectional winding system (left rotation) with accuracy of -20 to +40 seconds per day, and a power reserve of over 40 hours. The diameter of the movement is 26 mm and the thickness is 5.67 mm. It beats at 21,600 BPH.