I have the same issue. How can you tell if it’s broke or just can be pushed back in? Can I show you a picture? Your help would be very much appreciated.Welcome to the forum. The crown actually is not screwed in. It snaps in and to remove you have to use a pin or small screwdriver to push in the release through a hole in the back of the movement. The crown may have broke leaving part of it inside. If not and you find a crown you could just push it in until it clicks. Finding one will be difficult and your best chance would be sending it to US HQ for repair. Good luck, hope you stick around.