Inside https://www.rboculosdesol.com/oculos-de-sol/rb4420/ the case, Selten uses the Soprod M100 caliber. This 25-jewel Swiss automatic movement operates at 28,800vph and offers 42 https://www.rbocchialidasole.com/occhiali-da-sole/bill-summer-capsule/ hours of power reserve. The movement is adjusted https://www.rblunettesdesoleil.com/lunettes-de-soleil/rb4457d-bio-based/ to five positions with an accuracy of ±6 seconds per day.