Japanese original Miyota 8N24 movement calendar-free hollow silver gold automatic movementThe Miyota 8N24 is a Japanese automatic skeleton movement, prized for revealing the intricate dance of its 21 jewels through a transparent dial . It offers reliability with a 42 hour power reserve and a steady 21,600 bph beat rate . Supporting both automatic and hand winding, this workhorse combines visual spectacle with robust, everyday functionality . Miyota 8N24 Specifications Category Specification Brand Miyota (Citizen Watch Co.) Type Automatic