I have a Mosel with the Miyota 8315 and a calendar. I was able to get the original stem out and the new one in with no problem. When the stem is all the way in, it winds, in the middle it changes the day, and all the way out spins the hour hand backwards and does not change the day after going 24+ hours back. I also can not get the stem out after putting it all the way in and pressing the button.
Any suggestions on how to fix this?