Rado Diastar

your problem is in setting lever,when the setting lever is jumping the stem cannot get back and lock,you better unscrew the complete barrel drum bridge plate take it out ,and the winding pinion is expose,take the winding gear and the setting lever is expose then arrange the alignment,align the winding pinion to the setting lever,alignment is ok.back bridge plate and screw,,make some winding of the crown,let see rachet wheel can turn transmission wheel of complete barrel drum,if can then checked the stem if already lock.,if lock already the job is done,...email if you some question regarding a watch ;lacarontito@yahoo.com